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DOI ® 10.5281/zenodo.4500898 HOLOTIPUS ARTICLE OPEN ACCESS Published on 15 May 2021 Holotipus is an open access, peer-reviewed scientific journal Holotipus journal devoted to Zoology, Systematics and Taxonomy. Special issues are dedicated to editorials and scientific papers focused on Art and Biology. 2021 (Vol. 2) Submitting papers should be addressed to Publisher, Chief Editor or Managing Editor. Cite as Grasso, M. & Casadio, C.A. (2021) Taxonomic [email protected] notes on the Ritsema, 1881 with description of a new species and subspecies Designed, published and printed in Italy by (Coleoptera: Cerambycidae: ). Holotipus Holotipus publisher & ActionKlavier studio, rivista di zoologia sistematica e tassonomia, II (1): Corso Peschiera 315/A, 10141 Torino. 11–46. http://doi.org/10.5281/zenodo.4500898.

Holotipus rivista di zoologia sistematica e tassonomia ISSN 2704-7547

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HT PUBLISHER Grasso, M. & Casadio, C. A. 2021. Holotipus rivista di zoologia sistematica e tassonomia II (1) 2021: 11-46

Received on 29 March 2021 / Accepted on 26 April 2021 / Published on 15 May 2021 Research Article

Taxonomic notes on the genus Rosenbergia Ritsema, 1881 with description of a new species and subspecies (Coleoptera: Cerambycidae: Lamiinae) Matteo Grasso1* & Carlo Arrigo Casadio2

urn:lsid:zoobank.org:pub:A35B1ECA-DBCE-40F7-9743-9B2B5F7085F2 10.5281/zenodo.4500898

1

Holotipus Journal, Corso Peschiera 315/A, 10141, Torino, Italy. https://orcid.org/0000-0003-4969-5993. http://zoobank.org/Authors/BE409F3B-A8FE-41A4-BE07-97F14B273E0F2

Via della Milana 42, 40026, Imola, Bologna, Italy Abstract. The R. dianneae species group*Corresponding of the genus Rosenbergia author: is [email protected] described and enlarged with the additional descriptions of R. cheesmanae sp. nov. and R. valentinae eki ssp. nov. Adult genitalia are depicted. The R. weiskei species group is analysed and Rosenbergia valentinae Rigout, 2004 stat. nov. is raised to species level and no longer considered a subspecies of R. dianneae Allard, 1990. The rediscovery of the holotype of Rosenbergia humeralis Gilmour, 1966 allows for the description of the male of this species. After extensive research, the holotype of R. dianneae is considered lost and a neotype has been designated.

Key Words: Taxonomy, New Guinea, , Rosenbergia, new taxa

Introduction (or absent) humeral/sutural spines on elytra than those of the R. weiskei species group. We analyse In the recent years, there have been few studies on Rosenbergia humeralis Gilmour, 1966, whose holotype the genus Rosenbergia (Coleoptera: Cerambycidae: was considered lost (Wallin & Nylander, 2007), R. Lamiinae). After searching for holotypes, we have dianneae Allard, 1990, considered nomen dubium come to notice that name-bearing specimens are (Wallin & Nylander, 2007), and its subspecies R. often not stored in publicly accessible collections. d. valentinae Rigout, 2004. Finally, we provide a Furthermore, several species have been described description of a new species and a new subspecies based on single specimens for which there exist belonging to this group. no clear identification keys or pictures. This is complicated by the fact that species in this genus are often extremely variable. Figure 1 In this article, we review the species of the Holotype male of Rosenbergia cheesmanae Rosenbergia weiskei Heller, 1902 group, which are sp. nov. dorsal view. characterised by reddish pubescence, elytra marked with narrow longitudinal gray bands and glabrous tubercles (Wallin & Nylander, 2007). We define the R. dianneae species group by the much more robust body, longer antennae and much weaker

HOLOTIPUS ARTICLE 15 Rosenbergia

Taxonomic notes on the genus Ritsema, 1881 with description of a new species and subspecies Abbreviations Examined specimens. Rosenbergia rubra Gilmour, 1966: 1 male (HT), weiskei Coll. Casadio C. A., Timika, 12-2004, body This study is based on the following examined labelled Holotype male Rosenbergia rubra miki BMH specimens belonging to the R. weiskei species group R. length 51 mm, in GCC (GCR-55OKI); 1 female labelled EHP -- Eastern Bishop Museum,Highlands Honolulu, Province Hawaii, USA dianneae species group, described as below. (miihi)FMNH; Gilmour,1 male labelledPNG, N.E. Indonesia, West Irian, HumboltWest Papua, Bay IrianDistrict, Jaya, Kapiro Timika, village, 11-2006, 11-01-2000, body length body 50 lengthmm in as defined by Wallin & Nylander (2007) and the Dist.District, Mamberamo, leg. J. Kleinberg, 28 km body from lengthMarikai, 45 Van mm, Rees in 40GCC mm, (GCR-8CIKJ); in GCC (GCR-XP3I0); 1 male labelled 1 female PNG, labelled MP, WauPNG, FMNH - Field Museum of Natural History, Chicago, Rosenbergia cheesmanae sp. nov.: 1 male Mountains, 135 Hm. S.02.17.708°/E.137.05.401°, Wau district, Mount Amungwina, 200 m, 15-04-2005; (dissected) labelled Papua New Guinea (PNG), Morobe body length 50 mm, in GCC (GCR-V86LH); 1 female Province (MP), 02-1998, body length 45 mm, in GCC mm, in GCC (GCR-05SYI). labelled Sorong, 1-04-2005, body length 53 mm, in Illinois,FVC - Francesco United States Vitali of AmericaCollection, Luxembourg (GCR-E2865; GCR-E2865G); 1 female labelled PNG, 19/26-06-2014, leg. Bretschneider, body length 42 GCC (GCR-8TT0N); 1 female labelled PNG, MP, Wafuf, MP, Aseki subdistrict, Hiemsini village, 14-07-1998, Rosenbergia valentinae valentinae Rigout, 2004 GCC body length 56 mm, in GCC (GCR-E4T2K); 1 male stat. nov.: 1 female (HT), labelled Rosenbergia in GCC (GCR-LD9I6); 1 female labelled Goroka, 03- labelled Rosenbergia weiskei, PNG, body length 44 mm, dianneae valentinae Coll. Casadio C. A., PNG, MP, 1992,Bulolo, body Gumi length village, 55 07-07-2006, mm, in GCC body (GCR-Z8WQT); length 61 mm, 1 MHL - Grasso-Casadio Collection, Imola (BO), Italy in GCC (GCR-T2GPA); 1 female labelled Rosenbergia female labelled PNG, MP, Aseki subdistrict, 04-1999, et d’étude des collections, Lyon, France weiskei Coll. Casadio C. A., PNG, MP, Memyamya, 2004, body length 58 mm, in GCC (GCR-6W090); 1 - Musée des Confluences, Centre de conservation body length 50 mm, in GCC (GCR-37DWH); 1 female Pesea-Aseki,male (PT, dissected), 01-01-1992, labelled Holotype Rosenbergia det. dianneaeJ. Rigout labelled Rosenbergia weiskei Coll. Casadio C. A., PNG, NBC labelled Rosenbergia weiskei Coll. Casadio C.A., PNG, valentinae Coll. Casadio C. A., PNG, MP, Aya-Aseki, body length 53 mm, in GCC (GCR-IJVIM); 1 female Madang, Papua New Guinea MP Aseki, Aya, 02-1992, body length 52 mm, in GCC (GCR-LDFH0); 1 female labelled Rosenbergia weiskei - New Guinea Binatang Research Centre, (GCR-MQ57P). Coll.EHP, CasadioOkapa, 02-1991, C. A., PNG, body MP, lengthAseki, 4802-1992, mm, in body GCC JHC 02-1992, Paratype det. J. Rigout 2004, body length Rosenbergia dianneae Allard, 1990: 1 male, 52body mm, length in GCC 53 (GCR- mm, FXZYJ;in GCC GCR-FXZYJG/RWI006); (GCR-E81XE); 1 male Rosenbergia weiskei PMC - -Jean-Roch Paolo Missori Houllier Collection, Collection, Roma, Paris, Italy France designated as neotype (dissected), labelled PNG, 1(dissected) male labelled labelled PNG, RosenbergiaMP, Bulolo, Ekopa, weiskei 25-07-07, f. rubra, length 53 mm, in GCC (GCR-6LOA8); 1 male labelled PNG, MP, Aseki, 09-2005, body length 54 mm, in GCC 1 male (dissected) labelled L. Falletti Rosenbergia Det., PNG, weiskei MP, Bulolo Coll. mm, in GCC (GCR-5C32C; GCR-5C32CG); 1 female (GCR-XL4W6; GCR-XL4W6G); 1 female labelled PNG, Casadio02-1986, C. body A., West length Papua, 46 mm, Arfak in GCCMt., 07-2003,(GCR-KO7NP); body Material and Methods Easternlabelled Highland,PNG, Eastern Okapa, Highlands 08-2000, Province body length (EHP), 51 length 48 mm, in GCC (GCR-7766F; GCR-7766FG);

C9Q5T). 04-2000,MP, Bulolo, body Ekopa, length 25-07-07, 57 mm, bodyin GCC length (GCR-GZ6AP); 59 mm, in 1 length 46 mm, in GCC (GCR-FA399); 1 male labelled callipers and a Zeiss stemi 305 stereomicroscope and Okapa, 04-1958, body length 57 mm, in GCC (GCR- GCCspecimen (GCR-4WA34); (sex not examined,1 female labelled photograph), PNG, MP, labelled Bulolo, 1PNG, male MP, labelled Wau district, Irian Jaya, Sandy Timika, Creek, 11-2006, 25-02-2005, body Body measurements were taken with digital Rosenbergia humeralis Gilmour, 1966: 1 female from the elytral apex to the antennal torulus. Habitus (HT), labelled Rosenbergia weiskei Heller det. E. F. PMC; 1 specimen (sex not examined, photograph), labelled Rosenbergia weiskei, PNG, MP, Wau district, illustrationsare rounded up were for habitus. made withBody alength medium is measured format Gilmour, Neu Guinea, body length 55 mm, in Musée PNG,labelled EHP, PNG, Okapa, MP, Aseki,05-2005, Aya, body 02-1998, length body 48 mm, length in Isapirobody length village, 50 04-1996, mm, in GCC body (GCR-1TUDP); length 48 mm, 1 femalein GCC camera: Hasselblad CFV 50C digital back mounted 47 mm, in PMC; 1 specimen (sex not examined, on Hasselblad 500 C/M body equipped with a 50 des collections, Lyon (47016164); 1 male labelled photograph), labelled PNG, MP, Aseki, 12-1997, mm macro tube and 150 mm lens mounted with Westdes Confluences, Papua, Arfak Centre Mts., de kab. conservation Manokwari, et d’étude Marzo leg. Missori-Ercoli, body length 61 mm, in PMC; 1 1(GCR-8AD9A); female labelled 1 femalePapua, labelledCenter Salawati EHP, Okapa, district, 04- 2006, body length 49 mm, in GCC (GCR-CE35A); 1 specimen (sex not examined, photograph), labelled 05-2007,Kampung body Kalobo, length 01-2020, 58 mm, body in GCC length (GCR-PBEQG), 51 mm, in with a three-light scheme. Zeiss stereomicroscope male (dissected) labelled West Papua, Arfak Mt., body PNG, MP, Aseki, 02-1994, leg. Missori-Ercoli, body GCC (GCR-CC443). cameraintegrated on camera a carbon-fibre was used tripod. for genitalia Illumination illustrations. was length 52.3 mm, in GCC (GCR-96295; GCR-96295G); length 49 mm, in PMC. Images were enhanced with Photoshop CC 2019. All 1 female labelled West Papua, Arfak Mt., 11-2016, specimens from the authors’ collection were assigned body length 53.2 mm, in GCC (GCR-5HKFL); 1 male Rosenbergia valentinae eki ssp. nov.: 1 male labelled Indonesia, West Papua, Arfak Mt., 2009, body (dissected) labelled Fak Fak, 03-2003, body length numbers not sequentially generated. For genitalia, length 52 mm, in GCC (GCR-1IMG0); 1 male labelled 50mm, in GCC (GCR-CM0NE; GCR-CM0NEG); 1 male athe unique letter identification G was added. Allcode the consisting related data of letters are stored and labelled Timika, body length 52 mm, in GCC (GCR- in a Database Management System. in GCC (GCR-I0KH2); 1 female labelled West Papua, Indonesia,Mapia Mt., body Irian length Jaya, 56.9Arfak, mm body in GCC length (GCR-R19XR); 52.6 mm, 1 female labelled Rosenbergia weiskei Coll. Casadio C. Y370U).Rosenbergia weiskei Heller, 1902: 1 male Taxonomy (dissected) labelled PNG, MP, Wau, 03-1999, body length 44 mm, in GCC (GCR-A2E3G; GCR-A2E3GG); Genus Rosenbergia Ritsema, 1881: 11-14. Arfak,A., Irian April Jaya, 2012, Arfak body Mt., 08-2004, length 47 body mm, length in GCC 62mm, (GCR- 1 female labelled West Papua, Nabire, 08-2008, body Type species: Rosenbergia mandibularis Ritsema, FM8CQ);in GCC (GCR-6RE4Z); 1 male labelled 1 Arfak,female 09-2019, labelled body Irian length Jaya, 1881: 11-14. 09-2019, body length 43.2 mm, in GCC (GCR-KF4YA); length 52 mm, in GCC (GCR-P0KIJ); 1 maleRosenbergia labelled Synonyms: 142 male mm, labelledin GCC (GCR-VORIP); Arfak, Ink district, 1 male labelled03-2020, Arfak, leg. Indonésie,weiskei Coll. Ouest Casadio Irian, C. 09-2009,A., PNG, MP, body Wau, length 1951, 43 body mm, Mimorosenbergia in GCC (GCR-KBWCE); 1 female labelled Type species: Mimorosenbergia meeki Rosenbergia weiskei Coll. Casadio C. A., PNG, MP, Wau, 1980: 132-133. Breuning, 1980: 132. 1femalePansing, labelledbody length Arfak 50 Mts., mm, body in GCC length (GCR-OPAHU); 62 mm, in length 44 mm, in GCC (GCR-RMBB2); 1 female labelled Breuning, 1 male labelled Jayapura, body length 45 mm, in JHC; 1 female labelled Rosenbergia weiskei Coll. Casadio C. 02-1992, body length 58 mm, in GCC (GCR-MOX7Q); JHC. in GCC (GCR-MEPFM); 1 female labelled Rosenbergia A., PNG, MP, Bulolo, 29-11-1988, body length 47 mm,

16 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 17 Rosenbergia drumonti Wallin & Nylander, 2007: 1 male (dissected) labelled West Papua, Arfak Mt., body GCCin GCC (GCR-CDS6P; (GCR-ZAU9M); GCR-CDS6PG); 1 male (dissected) 1 female labelled WestIrian Jaya,Papua, Fak Fak Fak, Fak, 01-2003, 03-2006, body body length length 53 51mm, mm, in (March)length 49 03-2002, mm, in GCC body (GCR-EBCD4; length 47 mm, GCR-EBCD4G), in GCC (GCR- 1 in GCC (GCR-PRP6T); 1 female labelled West Papua, 795F9;male (dissected) GCR-795F9G); labelled 1 female Irian Jaya, labelled Arfak PNG, Mt., Simbu Maret (Chimbu) Prov., Kundiawa village, 08-2019, body length 55 mm, in GCC (GCR-38CA8); 1 female labelled Cyclops Mt., Jayapura, 02-10-2008, body length 49 Arfak, body length 53 mm, in GCC (GCR-46AE8); 1 malemm, in labelled GCC (GCR-UPH1G); PNG, Morobe, 1 female body length labelled 47 Jayapura, mm, in male labelled West Papua, Arfak, body length 53 mm, 2020, body length 46 mm, in GCC (GCR-UD1AD); 1 Rosenbergia weiskei Coll. Casadio C. A., PNG, Simbu (Chimbu) FVC; 1 male labelled PNG, MP, Bulolo, 12-1985, leg. Province,in GCC (GCR-8UUWE); Kerowagi, 11-1990, 1 male labelledbody length 46 mm, Clark,P. B. Clark, body body length length 44 47 mm, mm, in in GCC GCC (GCR-PGMET); (GCR-OLBV4); in GCC (GCR-PG7H0); 1 female labelled Rosenbergia 1 female labelled PNG, MP, Bulolo, 12-1985, leg. P. B. weiskei Coll. Casadio C. A., PNG, Simbu (Chimbu) length 44 mm, in GCC (GCR-CA8K6); 1 male labelled Province, Kerowagi, 01-1990, body length 57 mm, 1 female labelled PNG, MP, Bulolo, 02-1986, body in GCC (GCR-TWYC7); 1 male labelled Rosenbergia Rosenbergia weiskei Coll. Casadio C. A., PNG, Simbu (Chimbu) PNG,mandibularis MP, Bulolo, 12-12-1988, body length 49 mm, Province, Kerowagi, 01-1991, body length 50 mm, in GCC (GCR-ZU0CQ); 1 female labelled in GCC (GCR-442Z8); 1 male labelled Rosenbergia , PNG, MP, Bulolo, 12-1986, body length weiskei 52 mm, in GCC (GCR-BFT8X); 1 female labelled PNG, 12-1988,MP, Bulolo, body 21-12-1988, length 45 mm,body in length FVC; 146 male mm, labelled in GCC labelled Coll. Rosenbergia Casadio C. weiskei A., PNG, Coll. EHP, Casadio Okapa, C. 02-1991, A., PNG, (GCR-NVBVV); 1 male labelled PNG, MP, Bulolo, 24- Simbubody length (Chimbu) 56 mm,Province, in GCC Kerowagi, (GCR-JK5X2); 01-1990, 1 malebody (GCR-KVDNM); 1 male labelled PNG, MP, Wau, 03- PNG, MP, Bulolo, 02-1986, body length 45 mm, in GCC PNG, Chimbu, Kerowagi, 02-1992, body length 54 mm, 1 female labelled PNG, MP, Wau, 03-1991, body lengthin FVC; 551 female mm, in labelled GCC (GCR-EFP1J); PNG, Chimbu, 1 maleKerowagi, labelled 02- 1991,length body54 mm, length in GCC 48 (GCR-F3REZ); mm, in GCC (GCR-GUW75); 1 male labelled 1992, body length 52 mm, in FVC; 1 male labelled Rosenbergia mandibularis Coll. Casadio C. A., PNG, MP, PNG, Gulf Province, Karoro Kerema, 03-2000, body Wau, Wantumiya, 01-1992, body length 48 mm, in length 54 mm, in GCC (GCR-N6GQX); 1 female labelled Rosenbergia weiskei Coll. Casadio C. A., PNG, Simbu (Chimbu) Province, Kerowagi, 01-1990, body length 1GCC male (GCR-JYXY5); labelled PNG, 1 MP,female Wau labelled district, PNG, Kapiro MP, village, Wau, 12-07-1995;02-1992, body body length length 43 36 mm, mm, in in GCC GCC (GCR-OB3G8); (GCR-SYC5Y); Mendi, 08-1980, body length 45 mm, in GCC (GCR- 1 female labelled PNG, MP, Wau, 02-1952, body length 57mm, in GCC (GCR-DQAFB); 1 female labelled PNG, 05-03-2005, body length 49 mm, in GCC (GCR-IYYFT). MP, Wau, Wantumiya, 01-1992, body length 48 mm, LB3PN); 1 male labelled PNG, MP, Wau, Kapiro village, 50 mm, in GCC (GCR-6ODIP); 1 male labelledosenbergia PNG, Additional material examined not belonging to R. mandibularis Coll. Casadio C. A., PNG, MP, Wau, weiskei-complex. Wantumiya,in GCC (GRC-QVUGM); 01-1992, body1 male length labelled 45 Rmm, in GCC (GCR-1C7SM); 1 male (dissected) labelled PNG, MP, Rosenbergia mandibularis Ritsema, 1881: 1 Wau district, Kapiro village, 14-12-1999, body length female labelled Sorong, 01-2003, body length 51mm, 39 mm, in GCC (GCR-VWLW5; GCR-VWLW5G); 1 male in GCC (GCR-M6143); 1 male labelled Rosenbergia labelled Rosenbergia mandibularis Coll. Casadio C. A., PNG, MP, Wau, Wantumiya, 02-1992, body length 51 Manokwri kab., 07-2003, body length 48 mm, in GCC mm, in GCC (GCR-6X5QV); 1 male labelled PNG, MP, mandibularis Coll. Casadio C. A., Irian Jaya, Arfak Mt., Wau district, Kapiro village, 02-02-1999, body length 40 mm, in GCC (GCR-PPDWC). (GCR-VBGDI);labelled West Papua,1 female Arfak labelled Mt., West07-2004, Papua, body Arfak length Mt., 46body mm, length in GCC 53 (GCR-T5WVQ); mm, in GCC (GCR-BF336); 1 male labelled 1 female West Papua, Timika, 02-2006, body length 41 mm, in GCC

Figure 2 (GCR-ET0FB); 1 male (dissected) labelled Indonesia, Holotype male of Rosenbergia cheesmanae RosenbergiaIrian Jaya, Fak mandibularis Fak, 03-2006, Coll. body Casadio length 52C. mm,A., Fak in sp. nov. ventral view. GCCFak, Maret(GCR-RQ9UR; (March) GCR-RQ9URG); 03-2003, body 1length female 49 labelled mm, in

South Gresi, Klaisu, 04/07-11-2019, body length 45 GCCmm, (GCR-PYJNN);in GCC (GCR-SPNPV); 1 female 1 malelabelled labelled Papua, West Jayapura Papua, Waigeo Isl., Waisai, 01-10-2018, body length 51 mm,

18 HOLOTIPUS ARTICLE Rosenbergia rufolineata NE Torricelli Mountains, Mobitei, 750m, 16/31-3- labelled PNG, MP, Aseki, 02-1992, body length 61 mm, Breuning, 1948: 1 female 1959,body lengthLeg. W. 48 W. mm,Brandt, in GCCbody (GCR-795F9); length 51 mm, 1 in female BMH; in GCC (GCR-IRDU8);1 female labelled PNG, EHP, 1 male labelled Papua, Jayapura, South Gresi, 05-2019, Okapa,body length 02-1992, 52 mm, body in GCClength (GCR-MDVGS); 60mm, in GCC 1 female (GCR- Z1BI4);labelled 1 PNG, female Chimbu labelled province, PNG, MP, Kerowagi, Aseki Subdistrict, 05-04- labelled Papua, Jayapura, South Gresi, 03-2021, body 2000, body length 53 mm, in GCC (GCR- 0YKWA); 49length mm, 49 in mm, GCC in (GCR-I3E5R). GCC (GCR-30FZO); 1 female labelled Papua, Jayapura, South Gresi, 03-2021, body lenght Rosenbergia xenium Gilmour, 1959: 1 female 1 male labelled PNG, EHP, Okapa, 02-1992, body labelled PNG, MP, Aseki, Paiwini village, 02-10-2004, length 51 mm, in GCC (GCR-EOVOX); 1 male labelled body length 58 mm, in GCC (GCR-RCNPZ); 1 male Rosenbergia straussi NeuGuinea, PNG, MP, Okapa, labelled Rosenbergia xenium forme, PNG, MP, Aseki, 03-1980, body length 55 mm, in GCC (GCR-P6JG1); Paiwini village, 03-11-2000, body length 48 mm, in 1 male labelledlabelled West R. straussi, Papua, PNG,Arfak EHP,Mt., 2009,Okapa, body 04- 1991, body length 48 mm, in GCC (GCR-GFWOW); GCCfemale (GCR-ABO51); labelled Rosenbergia 1 male xeniumlabelled Coll. PNG, Casadio MP, Aseki, C. A., length 53 mm, in GCC (GCR-AQGJ5); 1 female labelled 09-1997,PNG, MP, Aseki,body length Paiwini 44 (?), mm, 10-2003, in GCC (GCR-R2V9U); body length 56 1 02-1992,PNG, EHP, body Okapa, length 06-1992, 54 mm, body in GCC length (GCR-EHEXH); 62 mm, in GCC (GCR-J3KE9); 1 male labelled PNG, EHP, Okapa, Aseki subdistrict, Paiwini village, 06-11-1996, body lengthmm, in 50GCC mm, (GCR-5JBQE); in GCC (GCR-FNT2E); 1 female labelled 1 male PNG,labelled MP, 1 female labelled PNG, EHP, Okapa, 01-1990, body PNG, MP, Aseki, Paiwini, 10-2003, body length 54 mm, length 59mm, in GCC (GCR-JRF9E); 1 female labelled in GCC (GCR-T0TLC); 1 female labelled Rosenbergia 02-1992,PNG, EHP, body Okapa, length 04-1991, 65 mm, body in GCC length (GCR-HSTLM); 58 mm, in mandibularis Coll. Casadio, C. A., PNG, MP, Aseki, 07- GCC (GCR-RQFJE); 1 female labelled PNG, EHP, Okapa, length 54 mm, in GCC (GCR-NG8R0); 1 male labelled 1 female labelled PNG, MP, Aseki, Paisea, 12-1991, 1 female labelled PNG, EHP, Okapa, 03-1991, body 2003,body length body length55 mm, 57 in mm,GCC (GCR-ITAMF);in GCC (GCR-HOD07); 1 female labelled PNG, MP, Aseki subdistrict, Paiwini village, 05-2004,PNG, EHP, body Okapa, length 01-1990, 58 mm, body in GCC length (GCR-7R8NC); 48 mm, in GCC (GCR-OP6MM); 1 male labelled PNG, EHP, Okapa, 1 female labelled PNG, MP, Aseki subdistrict, Paiwini length 52 mm, in GCC (GCR-Y4MT7); 1 male labelled 12-12-2005,village, 06-11-1996, body length body 55 length mm, in57 GCC mm, (GCR-B382J); in GCC (GCR- 1 female labelled PNG, EHP, Okapa, 01-1991, body Rosenbergia xenium Coll. Casadio C. A., PNG, MP, Aseki, 01-2004, body length PNG, EHP, Okapa, 18-07-2007, body length 44 mm, 57USBGP); mm, in 1 GCCfemale (GCR-7MCA6); labelled 1 male labelled PNG, FVC;in GCC 1 female(GCR-6O2A9); labelled West1 female Papua, labelled Arfak PNG,Mt., 2008, East MP, Aseki, Paiwini village, 2-10-2007, body length Highlands, Okapa, 02-1991, body length 65 mm, in PNG, MP, Aseki, 3-1991, body length 53 mm, in GCC 61body mm, length in GCC 59 mm,(GCR-L25DX); in GCC (GCR-M4UAL); 1 male labelled 1 female PNG, (GCR-H5VPS);56 mm, in GCC 1 female(GCR-PFJ75); labelled 1PNG, female MP, Aseki,labelled 06- labelled PNG, EHP, Okapa, 18-07-2007, body length 1998, body length 58 mm, in GCC (GCR-67Q3T); 1 female labelled PNG, MP, Aseki, Paiwini, 11-1991, EHP, Okapa, 20-07-2007, body length 43 mm, in GCC body length 59 mm, in GCC (GCR-QHRD9); 1 female (GCR-CKRSU); 1 female labelled PNG, EHP, Okapa, labelled PNG, MP, Aseki, 24-06-1998, body length 55 04-1991,length 60 body mm, length in GCC 58 (GCR-W1MIW); mm, in GCC (GCR-2IHUS); 1 female mm, in GCC (GCR-VXWMV); 1 female labelled PNG, MP, 1labelled female Westlabelled Papua, PNG, Arfak EHP, Mt.,Okapa, 2008, 03-1991, body length body Aseki subdistrict, Paiwini village, 20-11-1996, body 62 mm, in GCC (GCR-XE1GC); 1 female labelled PNG, length 60 mm, in GCC (GCR-IP9QL); 1 female labelled

GCC (GCR-TGI9I); 1 female labelled PNG, MP, Aseki EHP, Okapa, 02-1992, body length 63 mm, in GCC PNG,subdistrict, MP, Okanaiwa, Paiwini 01-1992,village, body body length length 49 55 mm,mm, in (GCR-MC5G1); 1 female labelled PNG, EHP, Okapa, 10-1985, body length 64 mm, in GCC (GCR-JBP55); Paiwini village, 18-02-2007, body length 55 mm, in 1(R. male) rufolineata labelled PNG, EHP, Okapa, 31-08-2007, body GCC (GCR-ZJEY8); 1 female labelled PNG, MP, Aseki, length 43 mm, in GCC (GCR-PAKU4); 1 male labelled Paiwini village, 02-10-2007, body length 56 mm, in , PNG, EHP, Okapa, 04-1991, body GCC (GCR-8TMH1).(GCR-BUSAI); 1 female labelled PNG, MP, Aseki, length 41 mm, in GCC (GCR-P4TU9); 1 male labelled PNG, EHP, Okapa, 18-07-2007, body length 52 mm, in GCC (GCR-AFO3G); 1 male labelled Arfak Mt., body Figure 3 lengthRosenbergia 54 mm, in samuelsoni GCC (GCR-B3DR8). Rigout, 1982: 1 male Holotype male of Rosenbergia cheesmanae (HT; examined by photograph), labelled New Guinea, sp. nov. lateral view.

20 HOLOTIPUS ARTICLE Grasso, M. & Casadio, C. A. 2021. Holotipus rivista di zoologia sistematica e tassonomia II (1) 2021: 11-46

Figure 5 Holotype male of Rosenbergia cheesmanae male tergite VIII, dorsal view. Scale bar = 1 mm.

Figure 4 Figure 6 Allotype female of Rosenbergia Holotype male of R cheesmanae cheesmanae sp. nov. dorsal view. parameres, dorsal view. Scale bar = 1 mm.

22 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 23 Rosenbergia

Taxonomic notes on the genus Ritsema, 1881 with description of a new species and subspecies

Results Rosenbergia cheesmanae sp. nov. with sparse long yellow (rarely brown) setae, mainly

After comparing 68 specimens of the R. weiskei Holotype: male (dissected by ventrites removing apex with weak indentation in the middle, almost complex stored in the authors’ and museum which are stored in glycerol; genitalia on cardboard locatedstraight. on Surface the posterior not so much margin. sclerotised, Base straight; with collections and following extensive research, we attached to pin) from Papua New Guinea, Morobe strong punctures at the base such as at apex and provide a description of the habitus and genital Province, 02-1998, in GCC (GCR-E2865; GCR-E2865G). with well developed rhomboidal microreticulation. General appearance of two fairly well developed dissections of male specimens. The authors consider lobes forming the proctiger with weak sclerotised charactersmale tergite of VIII the (proctiger) recognised as partspecies, of the confirmed genital plate by RedParatypes: label handwritten 3 females by from the Hiemsini,first author. Memyamya tissue in the middle forming, towards the posterior (Holmen, 1987; Gardner, 1989). The aedeagus is and Aya village [GCR-E4T2K (marked Allotype), margin, a weak sclerotised and lighter fan-shaped generally considered to be of great importance, but GCR-37DWH, GCR-MQ57P], 1 male from PNG (GCR- area. Parameres 2 mm long, 1 mm wide, relatively T2GPA). long with depression, clearly visible towards the interior, the general indentation and curved shape posterior margin. Aedeagus 4 mm long, 1.3 mm wide if the sclerotised tissue does not completelyRosenbergia fill the Diagnosis: A Rosenbergia species with a grey vitta species, as previously suggested by Wallin & Nylander running from the scutellum to the elytral apex, (2007).are not Theuseful same for authors the identification cited the microreticulated of characterized by ferruginous orange-red pubescence at Remarks.base, quite R. flat,cheesmanae rounded sp.at apex. nov. belongs to the R. almost covering the whole elytral surface. dianneae species group. The new species is related to one on the proctiger, and we use this to separate R. R. dianneae by the general appearance of the genitalia weiskeitissue as from useful other for speciesspecific belongingdiagnosis, tosuch the as same the Description. Holotype, male, total length 45 mm; and microreticulation, from which it differs in a less species group. In the case of R. dianneae, a neotype pronotum + elytra 42 mm. trapezoidal proctiger and external habitus. A few is designated and described, as the holotype is lost. Head with lower eyes lobes as wide as high. dispersed tubercles and the lack of the pre-marginal The male of R. humeralis is described, along with Distance between mid eyes (measured in upper band on each elytron eliminates R. valentinae new species. Rosenbergia cheesmanae sp. nov. and lobes) 5 mm. valentinae and related subspecies. It differs from R. valentinae eki ssp. nov. Illustrations of the habitus Antenna total length 75 mm, reddish brown with almost all the variations examined of R. weiskei and and genitalia are provided at the end of the paper. moderate sturdy scape. Apex of antennomeres R. mandibularis in the absence of the grey bands. glabrous. Third antennomere 4 mm longer than In addition, compared to R. weiskei, R. cheesmanae Rosenbergia dianneae (Allard, 1990) species fourth; antennomeres covered at base with grey setae, shows a wider proctiger, longer parameres with group clearly visible depression in dorsal view, towards the Pronotum base 9 mm, 7 mm height; long axis posterior margin, and extensive microreticulation, The distinguishing characters are a robust body, whichcrossed become by carinae, finer andposteriorly shorter afterinterspersed article 3. with which is smaller and squared plus a less marked long antennae (longer in comparison to R. weiskei small, glabrous and shiny dark brown tubercles, same punctuated in R. weiskei. Rosenbergia rubra shows species group) and weak (or absent) humeral/sutural spines on elytra. The following species are considered thorns parallel to humeri, cylindrical and sharp. R. cheesmanae, as well as a more chocolate-brown part of this group: Rosenbergia dianneae Allard, 1990, Distanceat base of betweensomewhat their flattened apices lateral 14 mm. thorns. Scutellum Lateral elytralgreater colouration. and finer distribution of tubercles than does R. drumonti Wallin & Nylander, 2007, R. valentinae valentinae, Rigout 2004, R. valentinae eki ssp. nov setae with weak indentation on the middle posterior Distribution: Papua New Guinea, Morobe and Aseki and R. cheesmanae sp. nov. U-shaped,margin, quite posteriorly erect from elytral covered surface with at orange-red the anterior area.

Elytra elongated, reddish brown, covered with Etymology. The new species is named in honour of orange-redmargin; posterior pilosity margin except flatter. for one band at elytral suture and one thin median band on each elytron, woman to thoroughly explore the biogeography of which are covered with grey setae. Interspersed Mrs. Lucy Evelyn Cheesman (1881–1969), the first glabrous tubercles mainly placed at elytral base and who promoted a collaborative and non-violent towards suture and humeri. Two longitudinal carinae approachthe Southwest to native Pacific culture. Islands, including New Guinea, on each elytron. Distance between humeri 14 mm with short and small lateral spines. Apex with two sharp spines at each elytron, sutural one a little more elongated. Prosternum covered with light ochre-orange Figures 7-8 setae; prosternum, mesosternum and metasternum Neotype male of Rosenbergia dianneae from epimer apex to sternite VI covered with orange lateral and dorsal view. to ferruginous red setae forming longitudinal/ transversal narrow bands interspersed by white to lighter ochre areas of coloured setae. Legs darker than antennae, covered with ochre setae, more elongated on tibiae and tarsi. Male genitalia. Tergite VIII 4 mm wide, covered

24 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 25

Rosenbergia

Taxonomic notes on the genus Ritsema, 1881 with description of a new species and subspecies Rosenbergia dianneae Allard, 1990: 20. Genitalia. Male tergite VIII 4 mm wide thickly covered with long yellow setae, mainly located from Neotype: adult male (dissected, genitalia stored on cardboard attached to pin) from Papua New Guinea, almost straight. Surface well sclerotised, absent middlepunctuation the posterior at base suchmargin. as justBase hinted straight, at apex.apex currently in GCC (GCR-5C32C; GCR-5C32CG), it will Rounded microreticulation few developed. General Eastern Highland, Okapa, 08-2000, local collector, look of trapezoidal shape with well sclerotised Madang, Papua New Guinea. Red label handwritten longitudinal line in the middle. Parameres 2 mm long, be deposited at New Guinea Binatang Research Centre, 1.2 mm wide, relatively short feeling, with paramere sides convergent at external apex. Penis 4 mm long, byDiagnosis: the first author. a Rosenbergia species related to R. weiskei apex, which is rounded. Distinguished from R. weiskei mainly by structure of 1.4 mm wide at base, quite flat and elongated towards the genitalia. with medium-large and flat tubercles on elytra. Remarks. R. dianneae belongs to the R. dianneae species group. The species is related to R. weiskei Redescription. Neotype, male, total length 51 mm; in general habitus and genitalia. Proctiger pronotum + elytra 47 mm. microreticulation differs with a strongly trapezoidal Head black, covered with grey and orange setae proctiger in R. dianneae and more elongated body. mainly located around the eyes. Lower eyes-lobes Though we have few data, collecting are quite far slightly higher than they are wide. Distance between from R. drumonti type location and very different them 6 mm. genitalia, such as parameres more rounded at apex Antenna total length 93 mm, reddish brown and a different shape of tergite VIII in R. drumonti, with moderate short scape. Apex of antennomeres as below illustrated. R. valentinae differs from R. glabrous. Third article 3 mm longer than fourth diannae for an indentation on tergite VIII posterior margin which is squared plus more sharp and and short grey setae interspersed by single long black elongated parameres. R. dianneae looks different hairs.article; antennomeres covered at base with very fine from R. samuelsoni too since the grey pilosity and Pronotum base 10 mm, 8 mm height; long axis quite big tubercles (as in pictures of holotype) are crossed by carinae and one single swollen point, never shown in R. samuelsoni and R. dianneae has a posteriorly interspersed with small glabrous and very different proctiger, parameres and penis. shiny black tubercles, same at base of lateral thorns. Lateral thorns black, parallel to humeri, cylindrical Distribution: Holotype from Papua New Guinea, and quite sharp. Distance between their apexes 14 Morobe province, Aseki area. Neotype and GCR- mm. Scutellum covered with orange setae, with weak indentation in C9Q5TConcerning from Eastern the holotype, Highlands, the last Okapa. owner of Allard’s the middle posterior elongated margin, U-shaped, quite erect posteriorly from elytral collection (Mr. Alfred Punchner) informed us that the surface at the anterior and posterior margin. holotype of Rosenbergia dianneae was lost, destroyed Elytra elongated, quite light reddish-brown, during an infestation of Anthrenus.

grey bands, included one very small band at lateral coveredmargin and with one orange at the and suture grey of pilosity each elytra. that form Swollen five glabrous tubercles on elytral base of medium size, Figures 12-14 Holotype male of Rosenbergia valentinae eki located from base to the mid-elytra. Distance between ssp. nov. dorsal, ventral and lateral view. humeribigger and 17 mmflattened almost on without the elytral lateral margin, spines. mainly Apex with one short sutural spine at each elytron, a second Figures 15-16 one on the side is barely visible. Holotype of Rosenbergia valentinae eki Prosternum covered with brown setae as for male tergite VIII dorsal view and parameres, Figure 10 mesosternum and metasternum. Epimer, mesepimer, dorsal view. Scale bar = 1 mm. Neotype of R. dianneae metepisternum and mesepisternum covered male tergite VIII, dorsal view. with silver-grey setae. Posterior margin of each Figure 17 Figure 9 Scale bar = 1 mm. ventrite covered with narrow stripes of orange setae Paratype male of R. valentinae eki Neotype male of Rosenbergia dianneae as for the marginal side of prosternum, mesosternum dorsal view. ventral view. and metasternum, forming longitudinal or transversal Figure 11 narrow bands. Legs darker than antennae, covered Neotype male of R. dianneae with brown setae and single long black hairs on tibiae parameres, dorsal view. Scale bar = 1 mm. and tarsi.

28 HOLOTIPUS ARTICLE HOLOTIPUS 29

SPECIAL ISSUE

Rosenbergia

Taxonomic notes on the genus Ritsema, 1881 with description of a new species and subspecies Rosenbergia valentinae valentinae Rigout, 2004: Antenna total length 75 mm, black, with moderate stat. nov. elongated scape. Apex of antennomeres glabrous. Figure 18 Third article 3 mm longer than fourth; antennomeres Paratype of R. valentinae valentinae 4, Rosenbergiapl. 1, fig. 5 diannae valentinae Rigout, 2004 covered at base with grey setae that become grey, male tergite VIII, dorsal view. Scale bar = 1 mm. (original combination). Pronotum base 9 mm, 8 mm height; covered Original description. finerwith andorange shorter pilosity after on article the anterior 3. margin, long axis crossed by carinae, posteriorly interspersed by “Close to the nominate subspecies, but immediately swollen, small, glabrous and shiny black tubercles, distinguishable by less extensive granulation and same at base of lateral thorns. Lateral thorns black, more abundant pilosity, which only allows two grey parallel to humeri, cylindrical and sharp. Distance bands to be visible: one marginal and the other between apices 14 mm. sutural. The colour is brick red rather than orange. Scutellum setae, with weak indentation on the middle posterior Holotype: 12,58 mm, Pesea-Aseki, Morobe Province, margin, quite U-shaped, erect from entirely elytral covered surface; with anterior orange Papua New Guinea, 2/01/1992, in collection Carlo margin with lighter pilosity at sides. Arrigo Casadio. Elytra strongly elongated, reddish brown, covered with orange pilosity except for one band at the elytral Paratypes: 1 male, Aya-Aseki, Morobe Province, suture, other two barely hinted, very thin, and one Papua New Guinea, 02/1992, in collection Carlo pre-marginal quite extended and darker on each Arrigo Casadio; 1 male, same data in collection elytron, covered with silvery grey setae. Interspersed glabrous tubercles, small, swollen and subcircular at humeral side, being larger from 1/3 of each elytron Thierry Porion; 1 male same data in collection Jean- up to 3/4 of it, and on the elytral sides. No visible PierreThe Bader. is dedicated to the late Valentina Casadio.” carinae. Distance between humeri 16 mm, with small, Figure 19 short lateral spines. Apex with two black sharp spines Paratype male of R. valentinae valentinae Remarks. Following the designation of a neotype at each elytron, the sutural one more elongated. dorsal view. for R. dianneae, it was possible to separate and raise Prosternum black covered with ochre setae; to species level Rosenbergia valentinae, formerly prosternum, mesosternum and metasternum from considered a subspecies of R. dianneae. We consider epimer apex to sternite VII covered with lighter this species to belong to R. dianneae species group. In orange pilosity mixed with whitish ochre setae addition, the dissected material allowed us to ascertain forming longitudinal or transversal narrow bands. an unjustified relationship between R. dianneae All except the last visible ventrite, rimmed on the and R. valentinae since they differ consistently and posterior margin with light orange setae. Legs dark clearly in genitalia and habitus. It is important to as the antennae, covered with ochre and greyish note that both the mentioned species are sympatric setae, more elongated on tibiae and tarsi in dorsal view. Single black long hairs visible on tarsi. 1979), subspecies cannot be sympatric. Genitalia. Tergite VIII (proctiger) 4 mm wide at and, according to the well accepted definition (Mayr, base. Strongly sclerotised. Covered with sparse long Figure 20 Rosenbergia valentinae eki ssp. nov. yellow setae, mainly located on the posterior margin Paratype male of R. valentinae valentinae parameres, dorsal view. Scale bar = 1 mm. Holotype: adult male (dissected, genitalia on weak tip in the middle. Not visible punctuated base cardboard attached to pin) from Fak Fak, 03-2003, whichsuch as forms apex a roundedwith well-developed apex. Base straight, and elongated, apex with in GCC (GCR-CM0NE; GCR-CM0NEG). Red label sometimes joined, squared microreticulation. General look of rounded proctiger with quite more sclerotised central vertical suture line. Parameres 1.8 mm long, handwritten by the first author. 1.4 mm wide, stubby, with barely hinted longitudinal carinae dorsally. Penis 4.2 mm long, 1.6 mm wide Paratype:Diagnosis: 1 malea Rosenbergia (GCR-Y370U). species related to R. at base, strongly curved and swollen. Rounded and valentinae valentinae (ferruginous red pubescence elongated towards apex as for R. dianneae. Dorsal covering the elytra except for a grey vitta on elytral side strongly furrowed in the middle. suture and one pre-marginal darker) but more elongated and different in genitalia and current known distribution.

Description. Holotype, male, total length 50 mm; pronotum + elytra 46 mm. Head with lower eyes lobes more high than wide. Distance between eyes (measured as above) 6 mm.

32 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 33 Remarks. R. valentinae eki ssp. nov. is strongly proctiger, which shows a squared side at the posterior related to the nominal species valentinae valentinae in margin towards apex, and is well sclerotised with habitus and penis, but the latter is more curved in the dispersed yellow long setae. subspecies. Proctigers are similar in setae colour and Remarks. R. humeralis is a distinctive species, easily more elongated and with smaller elytral tubercles distinguished from all members of the weiskei group. distributionin R. valentinae but eki differ subspecies. in general In shape. addition, Body the shape type locality of R. valentinae valentinae is geographically and an elongated body compared to R. drumonti. distant from the collection locality of this subspecies. RosenbergiaUnique genitalia, xenium generally differs in larger the presence sized tubercles of rarely complete orange bands, a less elongated body and Distribution: West Papua, Fak Fak and Timika area. a very restricted and local distribution (so far only found in PNG and near Paiwini village). R. samuelsoni Etymology. The new species is named in honour of shows lighter colour bands and smaller and sparser tubercles than R. humeralis. The species was proposed insect collector who was not received enough credit in the past as junior synonym of R. rufolineata (Rigout, Mrs.over theEko last Susilowati, few years wife for his of enormousMr. Edy Bhaskara, contributions local 1982), later (Wallin & Nylander, 2007), R. humeralis in discovering beautiful entomological species. Eko is was considered to be a good species. These two species are distinguished by the genitalia, and elytral granulation (tubercles very large and distributed on (usedthe Javanese in past variation for example of Eka, in chemical a name with discoveries), Sanskrit whole elytral surface in R. rufolineata). origins.it is a classical Since the origin name name (Eka) derived meaning from is Greek “the first” and used for both men and women. We latinised it as Distribution: all the examined males come from Ekus (nominative) and Eki (genitive in Latin second declension). specimen examined as a photograph is from Pass Valley.West Papua, Arfak Mountains and Jayapura. One Rosenbergia weiskei (Heller, 1902) species group: Wallin & Nylander, 2007: 3. Notes on the holotype: a female considered lost by Wallin & Nylander (2007), who were unable to Characterised by reddish pubescence with elytra marked with narrow longitudinal grey bands and is illustrated at the end of this paper with updated glabrous tubercles. This species group consists of R. findred labels. it in MHNL. We also It considerhas now thisbeen to rediscoveredbe a good species. and weiskei Heller, 1902, R. humeralis Gilmour, 1966 and R. rubra Gilmour, 1966.

Rosenbergia humeralis Gilmour, 1966: 256, pl. Figure 21 Holotype female of Rosenbergia humeralis dorsal view. 2, Diagnosis:fig. 6. a Rosenbergia species mainly located in the Arfak Mountains with elongate body and Figure 21b Holotype female of R. humeralis original picture from Gilmour, 1966. medium-large flat tubercles. mm. Lower eye lobes higher than wide. Pronotum Figure 22 withMale: quite Elongate short blackand robust. spines Bodyat sides. length Scutellum 42–52 Holotype female of R. humeralis labels. rounded and swollen at the posterior margin, with weak indentation in the middle and covered for 2/3 Figure 23 Rosenbergia humeralis male (GCR-96295) dorsal view. withdo not orange exceed pilosity. 2/3 of theBody elytra dorsally in length. with dispersedThese are glabroussometimes and small, very butflat red-brownoften of medium tubercles, size. which Four Figures 24-25 longitudinal orange bands almost meet at the elytral R. humeralis (GCR-96295G) apex. Ventrally covered with mixed brown-orange male tergite VIII dorsal view and parameres, dorsal view. Scale bar = 1 mm. mesosternum and metasternum distal sides . Each ventritepilosity. Orangecovered pilosity with orange is concentred setae at on the prosternum, posterior margin. Legs as antennae, covered with brown pilosity, sparser on tibiae with the presence of black setae too. Genitalia with unique shape especially in

34 HOLOTIPUS ARTICLE Rosenbergia Figure 26 Rosenbergia weiskei male (GCR-A2E3G) Taxonomic notes on the genus Ritsema, 1881 with description of a new species and subspecies dorsal view.

Figure 27 Rosenbergia drumonti dorsal view. male (GCR-EBCD4)

Figures 28-29 Figures 30-31 R. weiskei (GCR-A2E3GG) R. drumonti male tergite VIII dorsal view and parameres, male tergite VIII dorsal view and parameres, dorsal view. Scale bar = 1 mm. dorsal view. Scale(GCR-EBCD4G) bar = 1 mm.

36 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 37 Grasso, M. & Casadio, C. A. 2021. Holotipus rivista di zoologia sistematica e tassonomia II (1) 2021: 11-46

Rosenbergia rubra particularly postero-medially, the rest very finely and The legs moderately slender, the anterior not Discussion closely punctured, with a single or double irregular noticeably elongate; the anterior tibiae distinctly, Original description. Gilmour, 1966: 245, pl. 1, fig.1. row of very variably sized (from very large to small), rather strongly curved; smooth; all the legs finely In studying all the material cited and literature We hereby report the Gilmour’s text in full. glabrous hair-bearing tubercles round the borders and closely punctured, with a number of slightly available relating to the genus Rosenbergia it was of the upper lobes of the eyes; with two longitudinal, larger, more distinct, scattered punctures on the tibiae, “This very distinct new species is the darkest coloured obtuse, but distinct, carinae on each side of the mid-line, particularly distally. The underside completely very and subspecies. Some species, once considered part member of the genus known to date. It belongs to the the inner the strongest and well-marked, not united finely and closely punctured; the prosternal process ofpossible R. weiskei to define species a new group species have group, been a newtransferred species group with unicolorous ferruginous-red or reddish- anteriorly and extending from about the level of the strongly rounded, moderately longitudinally depressed to another group. We analysed especially male brown pubescence and has deep reddish-brown elytra. posterior border of the eyes, to the posterior border of post- medially, strongly rectangularly laterally dilated specimens and their genitalia, and for this reason It is closely allied to R. mandibularis RITSEMA, but the head; the more lateral carinae shorter, less distinct, between the coxae, the apex broadly rounded, rather the paratype male of R. valentinae valentinae is differs conspicuously in colour, in addition to being arising at about the same level, but not extending to broadly and distinctly emarginate medially, giving a illustrated, as the holotype is a female. During the easily be separated by having much more extensive the posterior border of the head. distinct bilobed appearance; the mesosternal process study of localities of all the specimens determined as and differently distributed elytral tuberculation. The very broadly rounded, moderately broad, with an R. weiskei, we found some specimens of R. drumonti, elytral tubercles are most extensive suturally to about The pronotum transverse, almost twice as broad as extremely large, very broadly conical, slightly raised, representing a new distribution record of this species the apical quarter, rather than extending posteriorly long; slightly, but quite distinctly, narrower anteriorly pointed, strongly anteriorly projecting tubercle at the in the Arfak mountains. The authors of this paper along the margin, but extend only to about the middle than posteriorly; bearing on each side a long, slender, anterior border, very strongly posteriorly concave noted that at least two holotypes are untraceable, marginally. It also differs from R. mandibularis straight, pointed, conical spine; with one narrow vertically; the apex truncate. The apical ventrite more RITSEMA in lacking any marginal olivaceous-grey, or anterior and two narrow posterior, rather well-marked, or less semicircular, very broadly truncate apically, of valid species. Wallin & Nylander (2007) tried to other coloured bands on the elytra. transverse grooves; the disc not very strongly raised, the apex rather strongly excavately emarginate, the causingtrace the considerable holotype of R. difficultieshumeralis and in theput intodefinition doubt moderately smooth posteriorly, but with a strong, lateral angles distinct, more or less rectangular; the the validity of R. dianneae. However, to work on the Male: Elongate, robust, subcylindrically cuneiform. rather straight, transverse wrinkle along the anterior posterior border of the first to fourth abdominal R. weiskei group and with the aim of good storage The antennae moderately slender, exceeding the elytral border, and one or two short much more obtuse sternites very narrowly glabrous and shining. and diagnosis of all the specimens placed in GCC apex by the two apical segments, i.e., about one and transverse grooves behind; on each side of the posterior collection, it was necessary to trace these holotypes. two-seventh times as long as the body; smooth; very half of the disc a distinct group of 17-20 glabrous hair- Black, shining where glabrous. Covered above and This involved, in the case of R. humeralis, writing to sparsely fringed beneath on the first three segments, bearing tubercles, and on the posterior and ventral below with reddish-brown pubescence, which is darker MHL where the apparently lost holotype specimen thereafter only occasional setae beneath to the apex; surfaces of the lateral spines a larger number of similar above (brick-red), except for the head (apart from the was stored in the Lepesme collection, as originally segments five to ten, slightly, but distinctly somewhat tubercles; completely very finely and closely punctured. borders of the eyes), the anterior and posterior borders described by Gilmour (1966). The authors were spinously produced at their external apex; segments The scutellum about one and a third times as broad broadly of the pronotum and very narrowly, but able to examine the unique drawer of Rosenbergia three to seven with a few minute spines beneath at as long, sub- triangular, moderately rounded apically, distinctly, the sutural margin of the elytra which are all held in the Lepesme collection, with the help of old their apices, these becoming more extensive distally, with a fairly distinct, though shallow median apical of greyish-red; the underside and legs reddish-brown, photographs showing the exact distribution of the on segments eight to ten they completely encircle the emargination. a little lighter on the upperside; the basal segments of apices; the scape with a very broad, very shallow, not the antennae to about the middle of the fourth segment the supposed lost holotype. In this paper we provide very distinct, oblique internal pre-basal groove; the The elytra convex, cuneiform; the humeri not very thinly greyish-pubescent, the following segments tubercles, and they were able to confidently identify apical cicatrix more or less obsolete, indiscernible; strongly swollen or projecting; the humeral angle becoming very dark reddish- brown pubescent. as a good species. the first three segments and basal half of the fourth, bearing a rather long, obtusely pointed, moderately a description of the male and are able to confirm it with numerous moderately large scattered punctures, strong spine; each elytron with numerous small Length: 45 mm. In the case of R. dianneae, the holotype illustrated the interstices and rest of the segments very finely and glabrous tubercles placed basally anterior to a line in suppl. 1 (Rigout, 2004) is a low resolution closely punctured; the third segment one and two- from about the sutural third to the middle of the Breadth: 16 mm. photograph that did not allow for the study all the thirds as long as the scape, one and two-fifths as long margin, these largest and closest baso-humerally, features of this rare species. We began to search as the fourth, which is one and a quarter times as becoming distinctly smaller posteriorly; the rest of Locality: N. E. West Irian (N. E. Dutch New Guinea): for the type specimen but were unaware of the long as the scape; the following segments gradually the elytra very finely and closely punctured; on each Humboldt Bay district. (J. KLEINBERG). current location of the Vincent Allard collection (18 decreasing in length, except the apical which is elytron very faint traces of two almost obsolete, discal, elongate, about one and a half times as long as the longitudinal carinae; the elytral apices truncate, very Material examined: Holotype (male) in the GILMOUR Arnaud informed us that Allard’s collection was sold pre-apical and not quite as long as the third segment. slightly sinuate, both sutural and marginal angles collection. Unique.” December 1921 – 22 January 1994). Mr. Patrick The lower lobe of the eye about one and a fifth times as bearing strong pointed spines of which the sutural are with the assistance of Prof. Renzo Perissinotto, we broad as long, twice as broad as the irons, about three slightly more elongate and more slender. Remarks. We did not dissect this species but we receivedto Gerhard correspondence Beinhunder and, from after the some last ownerresearch of times as long as the genae. The frons rather narrow, a little more than twice as long as broad, rather strongly to separate it from other species belonging to the R. he wrote us that all the Rosenbergia collection was internally rounded on each side; very finely and closely dianneaeare able to species confirm group it is a by valid the species. absence It of is apossible robust destroyedthat collection, by Dermestidae- Mr. Alfred Punchner.Anthrenus Unfortunately, infestation. punctured, with a few moderately large, but indistinct, and large body, shorter antennae and well developed As R. dianneae is a rare species without a holotype, hair-bearing tubercles round the upper border of the elytral sutural spines. The subspecies R. rubra lower lobe of the eye; the lower border with a fine, fakfakensis Rigout, 2004 requires further analysis species at that point still in doubt. ICZN, Art. 75.3. slightly curved, transverse groove, which is quite well- itstates was stillthat necessary“A neotype to is confirm validly thedesignated validity ofwhen the marked laterally, but becomes almost obsolete towards holotype of Rosenbergia rubra is depicted (Fig. 32). there is an exceptional need […]”. Following Art. the mid-line, with a very fine median longitudinal line, to confirm its validity. In this paper, a picture of the which becomes much stronger and much more distinct and under Art. 75.3.5. we declare a neotype perfectly on the vertex, extending to the posterior border of the 75.3.4.,consistent confirmation with the descriptionof the lost holotype and the is holotypeavailable head. The vertex rather distinctly rugosely punctured, female specimen pictured in the literature (Rigout, 2004) (although of a different sex).

38 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 39 Rosenbergia

Taxonomic notes on the genus Ritsema, 1881 with description of a new species and subspecies

33 35 37 39

34 36 38 40

Figures 33-34 Paratype of R. valentinae valentinae male parameres dorsal view and tergite VIII, dorsal view. Scale bar = 1 mm.

Figures 35-36 Neotype male of Rosenbergia dianneae male parameres dorsal view and tergite VIII, dorsal view. Scale bar = 1 mm.

Figures 37-38 R. humeralis (GCR-96295G) male parameres dorsal view and tergite VIII, 41 43 45 dorsal view. Scale bar = 1 mm.

Figures 39-40 Holotype of Rosenbergia valentinae eki male parameres dorsal view and tergite VIII, dorsal view. Scale bar = 1 mm.

Figures 41-42 R. weiskei (GCR-A2ERGG) male parameres dorsal view and tergite VIII, dorsal view. Scale bar = 1 mm. 42 44 46 Figures 43-44 Holotype male of Rosenbergia cheesmanae Figure 32 male parameres dorsal view and tergite Holotype male of Rosenbergia rubra VIII, dorsal view. Scale bar = 1 mm. dorsal view. Figures 45-46 R. drumonti male parameres dorsal view and tergite VIII, dorsal view.(GCR-EBCD4G) Scale bar = 1 mm.

40 HOLOTIPUS ARTICLE HOLOTIPUS ARTICLE 41 Grasso, M. & Casadio, C. A. 2021. Holotipus rivista di zoologia sistematica e tassonomia II (1) 2021: 11-46

Following Art. 75.3.6. and consequently, Art. 76.1. Bibliography and recommendations, we declare the neotype 22 janvier 1994). Bulletin de la Société Sciences Nat, 81: Allard, V. (1990) Diagnose d’un nouveau Rosenbergia 3-5.Rigout, J. (1994) Vincent Allard (18 décembre 1921 - province as the new type location being this as nearlyspecimen as practicable locality as from Okapa, the originalEastern type Highlands locality. Bulletin de la Société Sciences Nat, 66: 20. Les Coléopterès du Monde. The The neotype will be immediately deposited at New Ritsema (Col., Cerambycidae, Lamiinae, Batocerini). of the world. 2 suppl. 1: Rosenbergia, new or little known RosenbergiaRigout, J. (2004) New Guinea following publication, with the aim Guinée. Bulletin de la Société entomologique de France. Guineato return Binatang to native Research people Centre,their own Madang, biodiversity Papua 85(5-6):Breuning, 132-133. S. (1980) Noveaux Lamiinae de Nouvelle- . Hillside Books, Canterbury, 12 pp.

accessible to global researchers for the study of the Casadio, C.A. (2006) Remarks about the holotype NotesRitsema, from LeydenC. (1881) Museum On a new, Note genus V, Vol. of III:longicorn 11-14. richness.type material This officiallyand promotes renowned the conservationresearch centre of isa of Rosenbergia straussi (Gestro, 1876) (Coleoptera, Coleoptera belonging to the group of the Batoceridae. permanent collection. The Rosenbergia weiskei group Lambillionea, 106: now consists of three species R. weiskei, R. humeralis 29-34. the genitalia characteristics of species within the and R. rubra. The Rosenbergia dianneae group now Cerambycidae, Lamiinae, Batocerini). RosenbergiaWallin, H. &xenium Nylander, Gilmour U. (2006) 1959 Descriptioncomplex and of related consists of three species and two subspecies: R. species. A taxonomic revision. Part 1 (Coleoptera dianneae, R. drumonti, R. valentinae valentinae, R. Cerambycidae). Lambillionea CVI (3), Supplement I: 1-20. valentinae eki ssp. nov and R. cheesmanae sp. nov. DiscussionGardner J.A.of Phylogenetic (1989) Revision Relationships. of the Genera Invertr. of the Taxon , Tribe3: 291-361. Stigmoderini (Coleoptera: Buprestidae) with a Acknowledgments the genitalia characteristics of species within the Gilmour, E.F. (1959) Revision of the genus Rosenbergia RosenbergiaWallin, H. &weiskei Nylander, Heller U. (2007)1902 complex Description and related of Ritsema. Idea. Journal of the Entomological Society of species, including the description of a new species of Paris, for his kindness in waiting to see this paper Indonesia, Vol. 12, Part 2, 3 & 4, 15: 40-51. Rosenbergia. Lambillionea CVII (1), Supplement I: 1-29. published.We want Dr.to Haroldwarmly Labrique, thank Dr. Cédric Jean-Roch Audibert Houllier, and Gilmour, E.F. (1960) Revision of the genus Rosenbergia conservation et d’étude des collections, Lyon, France, Ritsema. Idea. Journal of the Entomological Society of Davidfor their Besson, valuable Musée and professional des Confluences, help in Centre providing de Indonesia, 13 (1-2): 1-34. us with detailed pictures of Rosenbergia drawer in the Lepesme collection and the labels of the R. humeralis holotype. Without them part of this work would not Doesburgia, Aprionella, Microcriodes, Pseudapriona, have been possible. Mr. Arnaud, France, Mr. Gerhard ParaprionGilmour,a E.F.and (1963) Anapriona Revision (Coleoptera, of the Batocerini. Cerambycidae, Genera Lamiinae). Entomologische Abhandlungen aus dem Staatlichen Museum für Tierkunde in Dresden, 29 (7): BeinhunderSouth Africa, and for theirMr. Alfred assistance Punchner, in locating Austria; Vincent Prof. 475-491. Allard’sRenzo Perissinotto,collection. Special Nelson thanks Mandela to Dr. Henrik University, Wallin, Swedish Museum of Natural History, Stockholm, Gilmour, E.F. (1966) Revision of the genus Rosenbergia Ritsema. Reichenbachia Canada and many other researchers and collectors whoSweden; kindly Thierry helped Porion, us to trace France, important Jacques specimens Rigout, Grasso, M. & Casadio ,C.A. Bd. (2020)6 (30): A245-261. new species of useful for our research. Last but not least, thanks to Chevrolat 1852 (Coleoptera: Cerambycidae: the most generous man that we have had the good Lamiinae) from Western New Guinea. Holotipus rivista di zoologia sistematica e tassonomia, I (2): 37-47. from Malang, Indonesia, and his wife, with the great wishfortune to tocontinue know through a belief entomology,in the kindness Mr. ofBhaskara human Holmen, M. (1987) The aquatic Adephaga (Coleoptera) beings. Thanks to Dr. Francesco Vitali, National of Fennoscadia and Denmark. I. Gyrinidae, Halipslisae and Museum of Natural History, Luxembourg, for editing Noteridae this manuscript and anonymous reviewers for suggestions and corrections. . Fauna Entomologica Scandinavica, vol. 20, E. J. Brill,ICZN Copenhagen, (1999) International 169 pp. Code of Zoological Nomenclature (4th Edition). The Natural History Museum, London, 306 pp.

Mayr, E. (1979) Species and Evolution Cambridge, 797 pp. . Belknap, Les Coléoptères du Monde. The Beetles of the world Vol. 2. Batocerini. Sciences Nat, Compiegne, 128pp.Rigout, J. (1982)

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