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Tijdschrift voor Entomologie 161 (2018) 111–130

The genus Lambulosia Hampson, 1914 from New Guinea (Lepidoptera: Erebidae, Arctiinae, Lithosiini) Rob de Vos

The genus Lambulosia Hampson, 1914 (Lepidoptera: Erebidae, Arctiinae, Lithosiini) is revised. The genus is restricted to New Guinea. Nine new species were discovered to belong to this originally monotypic genus. Two species groups are recognized, the aurantiaca species group with six species, of which five are new to science: Lambulosia aurantiaca (Rothschild, 1912), L. arabuensis sp. n., L. gemmata sp. n., L. metallescens sp. n., L. flavoradiata sp. n. and L. brunnescens sp. n.; and the nigrolineata species group with four species new to science: L. nigrolineata sp. n., L. nigrotriangula sp. n., L. obscurata sp. n. and L. punctilineata sp. n. All species are described and the adults and genitalia are depicted. Rob de Vos, Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands. [email protected]

Introduction Materials and methods The Arctiinae (Erebidae) in the Indo-Australian re- gion are known for the many genera with only one Material or very few species, and on the other hand for a few For this revision 44 specimens were examined in the very large genera with numerous species. The last following collections: decades many genera have been revised by several authors and this revealed that many sibling species KSP Koleksi Serangga Papua, Waena, Papua, were hidden in what was considered a well known Indonesia (former collection of Henk species or species group (Holloway et al. 2001). The van Mastrigt) same goes for the genus Lambulosia Hampson, 1914, NHMUK (in some specimen numbers referred to which was originally described as monotypic with as BMNH(E)) - Natural History Mu- type species Lambula aurantiaca Rothschild, 1912. seum, London, United Kingdom Recently nine new species were discovered to belong RMNH (in specimen numbers referred to as to this genus, all restricted to New Guinea and found RMNH.INS.) - Naturalis Biodiversity at high altitudes. The ten known species of this ge- Center, Leiden, The Netherlands (for- nus can be arranged into two species groups, with six merly Rijksmuseum van Natuurlijke and four species, respectively, judging from the strik- Historie) ing differences in their genitalia. The identical structure of the wings, colour pattern and abdomen, with Methods some characteristic features, is the reason to consider The genitalia of all species studied (at least one male both groups as belonging to one genus. One species and one female specimen per species) were dissected, is found in Papua New Guinea, the other nine were mounted and depicted when available. Dissected found in the Indonesian part of the island. genitalia were put in cold KOH 10% for one night.

Tijdschrift voor Entomologie 161: 111–130, Figs 1–45. [ISSN 0040-7496]. brill.com/tve © Nederlandse Entomologische Vereniging. Published by Koninklijke Brill NV, Leiden. Published 16 September 2019. DOI 10.1163/22119434-20192079 Downloaded from Brill.com09/24/2021 08:16:37PM via free access

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After washing and cleaning with 30% alcohol to Lambulosia nigrotriangula sp. n. remove fat, scales and dirt, the genitalia were stained Lambulosia obscurata sp. n. in a solution of chlorazol black in 30% alcohol and Lambulosia punctilineata sp. n. fixed in 95% alcohol. Then the genitalia were pre- pared for preservation in Euparal Essence (to prevent air bubbles) and after a few minutes mounted on a Keys to the species of the genus glass slide in a few drops of Euparal medium follow- Lambulosia ing the standard used in the Natural History Mu- seum in London (Robinson 1976): abdomen on the Wing pattern left side, genital armature top right, aedeagus bottom right. To prevent the smaller parts, like the ae- 1. Forewing with ground colour yellow �� 2 deagus, from floating the Euparal drops were left to – Forewing with ground colour grey or brown �� dry at least 24 hours without glass cover in a closed �� 6 Petri dish (to protect against dust). The next day a 2. Forewing without transverse lines �� 3 proper size glass cover was put on the parts in the – Forewing with transverse lines �� 5 sticky Euparal, adding a few fresh drops of Euparal. 3. Forewing with a broad dark margin along ter- The complete slide was left to dry for weeks to men and costa, continuing as a metallic blue months in the Petri dish. Labels were only added af- subbasal triangular band ��gemmata ter drying completely, so therefore it was necessary – No such broad dark margin on the forewing �� to write slide number and details on the petri-dish �� 4 cover and to scratch the number on the glass slide 4. Forewing with a dark subbasal costal spot, to avoid mixing up with other drying slides. All hindwing plain-coloured ��nigrotriangula slides were made by the author and were numbered – Forewing costa subbasally at most with a dark with standard numbers of the labels provided by the rim, hindwing at margin with dark suffusion museum. ��nigrolineata (female) Slides were studied with a WILD M3 binocular 5. Transverse lines sharp and black, finely den- microscope at 60–400× magnification. Digital pho- tated �� nigrolineata (male) tographs were made with a motorized Zeiss V20 bin- – Transverse lines rather diffuse, space in be- ocular microscope and a digital Axio MRc5 camera tween can be filled by dark colour forming a controlled by Axiomanager M2 software. broad fascia ��aurantiaca Forewing lengths (Fwl) were measured with a digi- 6. Forewing with costal spots or a fascia �� 7 tal calliper from forewing base to apex; numbers were – Forewing without a trace of spots or a fascia �� rounded to 0.5 mm. Morphological terminology of �� 9 the external structures (excluding the genitalia) main- 7. Brown forewing with a slightly darker fascia ly follows Scoble (1992) and Holloway et al. (2001). and diffuse transverse lines ��arabuensis The terminology of the genitalia mainly follows – Forewing with two costal spots (connected to Tuxen (1970) and Kôda (1987). transverse lines) �� 8 8. Hindwing dark grey, forewing with transverse Results lines consisting of dots ��punctilineata – Hindwing cream-white or pale yellow, transverse lines on forewing unbroken �� Checklist Lambulosia species obscurata 9. Forewing with yellow longitudinal stripes Lambulosia Hampson, 1914 along the veins �� Type species: Lambula aurantiaca Rothschild, 1912 flavoradiata – Forewing plain-coloured, basally with blue The aurantiaca species group metallic shimmer �� 10 Lambulosia aurantiaca (Rothschild, 1912) 10. Forewing dark brown, basally with some faint Lambulosia mediosuffusa Strand, 1922 blue metallic shimmer ��brunnescens Lambulosia pallicolor Strand, 1922 – Forewing grey brown, basally with distinct Lambulosia arabuensis sp. n. blue metallic shimmer ��metallescens Lambulosia gemmata sp. n. Lambulosia brunnescens sp. n. Genitalia Lambulosia metallescens sp. n. Lambulosia flavoradiata sp. n. 1. Male genitalia �� 2 (male of flavoradiata is unknown) The nigrolineata species group – Female genitalia �� 10 (females of Lambulosia nigrolineata sp. n. arabuensis, brunnescens and obscurata are unknown) Downloaded from Brill.com09/24/2021 08:16:37PM via free access

204346 Rob de Vos: The genus Lambulosia Hampson 113

2. Cucullus and sacculus separated into slender 14. Bursa copulatrix at left and right side longitudinal parts without any processes, ae- strongly covered with large thorn-like signa deagus long and slender (aurantiaca species ��punctilineata group �� 3 – Bursa copulatrix at least the distal half entirely – Cucullus and sacculus at base connected, cu- sclerotized �� 15 cullus with one or more additional processes, 15. Bursa copulatrix almost entirely sclerotized, aedeagus short and robust (nigrolineata species caudally scobinated with numerous tiny group) �� 7 spines which are arranged and clustered in 3. Extension of cucullus with blunt apex, apex irregular curved ridges �� of straight sacculus with a long sharp thorn nigrolineata ��arabuensis – Caudal half of bursa copulatrix scobinated – Extension of cucullus with sharp apex �� 4 with regularly divided tiny spines �� 4. Extension of cucullus with a hockey-stick- ��nigrotriangula shaped apex, sacculus strongly curved and with a spatula-shaped apex ��metallescens – Extension of cucullus not with a hockey-stick- The aurantiaca species group shaped apex, apex of sacculus sharp �� 5 General characters: Antennae in male and female fi- 5. Aedeagus with one small squarish cornutus, liform, scarcely ciliate. Abdomen robust, smoothly apex of extension of cucullus claw-shaped scaled with small scales, hardly any long hairlike scal- ��aurantiaca ing, no anal tuft. Forewing of male broad, with costa – Aedeagus without cornutus �� 6 strongly arched, hindwing in male broad, dorsal area 6. Apical part of extension of cucullus slightly in some species wrinkled and slightly modified with sinuous, apex less sharp than in next species pheromone scales. Female wings normally shaped. ��brunnescens Forewing pattern, if present, usually consisting of – Apical part of extension gradually curved, not two angled transverse lines which in fact are the bor- sinuous, apex needle sharp ��gemmata ders of a median band, in some specimens filled with 7. Sacculus with short finger-shaped apical pro- darker colour. Hindwing without pattern, in some cess, aedeagus strongly curved ��nigrotriangula species female with dark hindwing. – Sacculus with long process(es) �� 8 Male genitalia: Uncus very slender, long and curved in a 8. Sacculus with two apical processes, one finger- hook. Juxta large, bottle-shaped and at the apex ex- shaped and one club-shaped �� nigrolineata tended into a tube to conduct the long aedeagus. – Sacculus with one apical process �� 9 Valvae with cucullus and sacculus separated into slen- 9. Apical process of sacculus slender, aedeagus der longitudinal parts, cucullus and sacculus without with a large carinal thorn �� obscurata additional processes. Aedeagus long and slender, – Apical process of sacculus robust, aedeagus with distal part bent, vesica with or without one with a small carinal thorn ��punctilineata cornutus. 10. Female genitalia with long ribbon-shaped duc- Female genitalia: Lamella vaginalis slightly or not tus bursae, large scobinated cervix bursae and sclerotized, antrum funnel-shaped, usually followed an unsclerotized bursa copulatrix (aurantiaca by a long coiled and stronger sclerotized ductus bur- species group) �� 11 sae, or short and unsclerotized. Cervix bursae large – Female genitalia with a rather short ductus and oval or cylindrical, usually scobinated or with bursae, and with strongly sclerotized cervix tiny spines. Bursa copulatrix globular and broadly bursae and bursa copulatrix (nigrolineata spe- connected to the cervix bursae at an acute angle, un- cies group) �� 14 sclerotized and without signum. 11. Ductus bursae only at antrum sclerotized, un- coiled and rather short �� flavoradiata – Ductus bursae long, sclerotized and coiled �� Distribution �� 12 The species are widely distributed on the mainland 12. Ductus bursae double coiled ��gemmata of New Guinea (Fig. 44 below) and restricted to – Ductus bursae with one coil �� 13 mountain areas. 13. Sclerotized core of ductus bursae broad, spines of cervix bursae regular divided ��aurantiaca – Sclerotized core of ductus bursae narrow, Lambulosia aurantiaca (Rothschild, spines of cervix bursae arranged in rows 1912) ��metallescens Figs 1–4, 19, 28, 37

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204346 114 Tijdschrift voor Entomologie, volume 161, 2018

1 2

3 4

5 6

Figs 1–6. Habitus of Lambulosia species. — 1–4, L. aurantiaca (Rothschild, 1912); 1, ♂ holotype, Mt. Goli- ath, ii.1911, Dutch New Guinea [BMNH(E)1403558]; 2, f. mediosuffusa Strand, 1922, ♂ holotype, Mt. Goliath, ii.1911, Dutch New Guinea [BMNH(E)1403559]; 3, f. pallicolor Strand, 1922, ♂ holotype, Mt. Goliath, ii.1911, Dutch New Guinea [BMNH(E)1403560]; 4, ♀, Mt. Goliath, i.1911, Dutch New Guinea [NHMUK-010914409]; 5, L. arabuensis sp. n., ♂ holotype, Araboebivak, 1.xi.1939, Dutch New Guinea [RMNH.INS.910508]; 6, L. brunnescens sp. n., ♂ holotype, Bog Camp, Pegunungan Foja, 6-27.xi.2008, Papua, Indonesia [KSP-58554].

Lambula aurantiaca Rothschild 1912: 214; Draudt Holotype mediosuffusa: ♂ BMNH(E)1403559, 1914: 221. [Dutch New Guinea], Mt. Goliath, 5–7000 ft. Lambulosia aurantiaca Hampson 1914: 582; Strand Centr. Dutch N. Guinea, about 139° long[itude], 1922: 656; Watson et al. 1980: 100. February 1911, (A.S. Meek). Lambulosia Lambulosia aurantiaca ab. mediosuffusa Strand 1922: aurantiaca ab. mediosuffusa Strand, Holotype. 656. Hampson, Ab 2. Lambulosia aurantiaca ab. pallicolor Strand 1922: 656. Holotype pallicolor: ♂ BMNH(E)1403560, [Dutch New Guinea], Mt. Goliath, 5–7000 ft. Centr. Dutch Holotype aurantiaca: ♂ BMNH(E)1403558, N.Guinea, about 139° long[itude], February 1911, [Dutch New Guinea], Mt. Goliath, 5–7000 ft. (A.S. Meek). Lambulosia aurantiaca ab. pallicolor Centr. Dutch N. Guinea, about 139° long[itude], Strand, Holotype. Hampson, Ab 1. Rothschild Be- February 1911, (A.S. Meek). Lambula aurantiaca, quest, B.M. 1939-I. Type Rothsch. Rothschild Bequest, B.M. 1939-I.

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Three additional specimens were examined in Distribution NHMUK, including NHMUK010914408 (♂) and The species has only been found on Gunung Yamin NHMUK010914409 (♀). (former Mt. Goliath) in the Southwest of the Star Mountains (Fig. 44). No recent material is known. Diagnosis The specimens were found at altitudes between 1500 Distinguished from all other known species by the and 2100 meters. cream-white hindwing and, in some specimens, the dark median band. This median band curves back Lambulosia arabuensis sp. n. in an S-shape, rather than ending at an angle to the front margin as in other species. Figs 5, 20, 29

Description Holotype: ♂ RMNH.INS.910508, [Dutch New Guinea], Araboebivak, 1.xi.1939, K.N.A.G. Nieuw General characters: Forewing length ♂ 11.5 mm, ♀ 11 mm. Head and thorax yellow, including the an- Guinea Exp., Museum Leiden. tenna and palpus. Abdomen with first two segments buff, other segments dark brown, distal segment Diagnosis buff. Forewing in holotype golden-yellow, costa in The forewing of the holotype at first sight seems basal area with a brown bar. Both transverse lines uniformly buff coloured but there is a faint darker brown, basal line slighltly sinuous, postmedian line median band running from costa to dorsum with S-shaped. In f. mediosuffusa median area filled with the distal edges acutely angled. Entire abdomen dark brown scaling, in f. pallicolor all dark patterning, in- brown. cluding the transverse lines and costal bar, faint and Description ground colour paler yellow. Hindwing cream-white. General characters: Forewing length 11 mm. Female Cubital vein at base with a long hairy pale yellow ♂ unknown. Head and thorax buff, including the an- bristle, in female also present but with less hairs. tenna and short labial palpus. Abdomen dark brown, Underside of forewing and hindwing with the costal anal segment grey-buff. Legs buff, hind leg at upper area suffused with dark grey scales. side brown. Forewing broad, strongly arched at costa, Male genitalia: Specimen NHMUK010914408 had rounded apex and termen, dorsum without angle. some old damage caused by some pest insect (prob- Forewing buff with faint dark brown median band. ably Anthrenus). It had eaten the left side of the ab- Distal edge of this band not sharply defined, acutely domen, including parts of the genitalia. Therefore angled in middle of wing, basal edge gradually and only the remaining parts on the right side can be sinuously curved. Hindwing rounded, folded and described. wrinkled, particularly in tornal area. Yellow-buff, cu- Uncus slender and curved as a hook, apex slightly bital vein at base with long hairy yellow-buff bristle. broadened into a beak. Tegumen elongate triangular, Male genitalia: Uncus very thin and hook-shaped, fragile, bottom rim of tegumen with two elongate apex making a curve of about 130°, apex slightly triangular flaps laterally. Top of juxta still present in beak-shaped. Tegumen triangular, rather fragile, bot- the specimen, showing that it is similar to that in tom rim of tegumen with two broad folded triangu- other species in the aurantiaca species group; large, lar flaps laterally. Juxta bottle-shaped (in Fig. 20 the bottle-shaped. Valvae deeply incised, with cucullus apex of the juxta is folded). Vinculum simple, saccus and sacculus separated from base. Cucullus narrow- not developed. Valvae with sacculus partly divided based, stretched with costal rim folded and extended from cucullus. Sacculus broadly based and tapering into a slender finger-shaped process bent at an angle to a long and thin extension with thorn at apex, half- of 90° and with a sharp claw-shaped apex. Aedeagus way the sacculus some long setae. Cucullus broadly long and slender with apical part bent to about 90°. based with long setae on the outside. Cucullus with Vesica with one small squarish cornutus which has slightly curved finger-shaped extension, near apex one side folded. slightly broadening and with a blunt apex. Extension Female genitalia: Lamella vaginalis hardly sclerotized, of cucullus at edges with some setae. Aedeagus long antrum broad funnel-shaped. Ductus bursae broad, and thin. Apical third of tube curved to 90°. Vesica sclerotized and flattened, with two coils near cervix with one larger rectangular cornutus, more distally bursae. Cervix bursae for 75% scobinated, near con- scobinated with a band of tiny chitine drops and api- nection with ductus bursae with some larger spines. cally a bunch of tiny needles. Coecum small. Ductus seminalis originating from middle of cervix bursae. Cervix bursae and bursa copulatrix broadly Distribution connected, bursa copulatrix globular and without The only known specimen has been collected during signum or spines. the “Le Roux Expedition” or “Central New Guinea

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9 10

11 12

Figs 7–12. Habitus of Lambulosia species. — 7–8, L. gemmata sp. n.; 7, ♂ holotype, Demaisi, Arfak Mts, 14.xi.2011, Papua Barat, Indonesia, [RMNH.INS.1098933]; 8, ♀ paratype, Mokwam, Arfak Mts, 6–10.xi.2011, Papua Barat, Indonesia [RMNH.INS.1098937]; 9–10, L. metallescens sp. n.; 9, ♂ holotype, Biagi, Mambare River, iii.1906, British New Guinea [BMNH(E)1403556]; 10, ♀ paratype, Biagi, Mambare River, iii.1906, British New Guinea [BMNH(E)1403557]; 11, L. flavoradiata sp. n., ♀ holotype, Borme, Kec. Borme, 17–24.ix.1998, Papua, Indonesia [KSP-25231]; 12, L. obscurata sp. n., ♂ holotype, Walmak, Kecamatan Nipsan, 10–16.ii.2005, Papua, Indonesia [RMNH.INS.910505].

Expedition” in 1939. Araboebivak (Arabu Camp) Lambulosia gemmata sp. n. (Fig. 44) was one of the camps at the Northeast side Figs 7, 8, 21, 30, 38 of the famous “Wissel Lakes” or Paniai lakes (Le Roux, 1940) at an altitude between 2400 and 2500 Holotype: ♂ RMNH.INS.1098933, Indone- meters. sia, Papua Barat, Bird’s Head Peninsula, Arfak Mountains, Demaisi, 1637 m, 1°10’ S, 133°53’ E, Etymology 14.xi.2011, at light, Papua Insects Foundation. The name of this species refers to the locality where Paratypes (1 ♂, 8 ♀): 1 ♂ RMNH.INS.1098934, the holotype was found. 1 ♀ RMNH.INS.1098935, same data as holotype; Downloaded from Brill.com09/24/2021 08:16:37PM via free access

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6 ♀ (RMNH.INS.1098936, 1098937, 1098938, funnel-shaped, distally hardly sclerotized but cau- 1098939, 1098940, 1098941), Indonesia, Papua dally gradually more sclerotized and running into a Barat, Bird’s Head Peninsula, Arfak Mountains, long, coiled, flattened and sclerotized ductus bursae. Mokwam, 1510 m, 1°06’ S, 133°54’ E, 6–10. This ductus has three complete coils before reach- xi.2011, at light, Papua Insects Foundation, [for- ing scobinated oval cervix bursae from which ductus mer] Collectie Zoölogisch Museum Amsterdam; 1 seminalis originates in middle. Finally continuing ♀ RMNH.INS.1098942, Indonesia, Papua Barat, into globular bursa copulatrix which is unsclerotized Bird’s Head Peninsula, Arfak Mountains, Mokwam, but covered with hardly visible chitinous drops. 1510 m, 1°06’ S–133°54’ E, 22.x.2014, PIF expedition, Leg. Sinnema, [former] Collectie Zoölogisch Distribution Museum Amsterdam. The species occurs in the northern Arfak Mountains (Fig. 44), where it was found at altitudes between Diagnosis 1510 and 1637 m. A conspicuous species with pale yellow forewing and a dark margin along costa and termen, subbasally Etymology and at costa with blue metallic shimmer. The species name refers to the beauty of the species with the blue shimmering margin, like a gem. Description General characters: Forewing length ♂ 10–10.5 mm, ♀ 11–11.5 mm. Male with head, including short la- Lambulosia brunnescens sp. n. bial palpi, and thorax yellow. Basal half of antenna Figs 6, 22, 31 dark grey, distal half yellow. First two segments of abdomen buff-yellow, rest of abdomen black, anal Holotype: ♂, KSP-58586, [Indonesia], Provinsi segment yellow. Legs yellow, tibiae and tarsi black. Papua, Pegunungan Foja, Bog Camp, 1650 m, Forewing of male short and broad, with basal part of 2°34.5’ S, 138°42.9’ E, 6–27.xi.2008, CI/LIPI sur- costa strongly arched. Forewing base yellow. Ground vey, Henk v M[astrigt]. colour of forewing yellow-buff, a blue metallic Paratypes: 2 ♂, KSP-58553, KSP-58554, same data subbasal band tapering from costa to dorsum, con- as holotype. nected to margin of same colour along costa, subapi- cally changing in dark brown and continuing with a Diagnosis broad dark apex along termen, gradually narrowing Forewing dark brown, almost black, with blue shim- and ending in tornus. Hindwing of male pale yellow, mer in the basal third of the wing. Hindwing yellow. triangular, particularly folded and wrinkled in tornal and dorsal area. Cubital vein at base with long hairy Description yellow bristle, tornal area with some rough scaling. General characters: Forewing length ♂ 10 mm. Male Female with head, thorax and abdomen as in with head and thorax dark brown, thorax with blue male. Antenna yellow with some grey scales. Fore- shimmer. Labial palpus yellow. Antenna pale brown. wing more elongate with rounded termen. Margin Abdomen unicolorous buff, including anal tuft. on forewing as in male. Hindwing dark grey with Legs pale brown. Forewing with ground colour dark darker suffusion at margins. Cubital vein at base brown, basal third with bluish metallic shimmer. with a long hairy yellow bristle. Hindwing yellow. Cubital vein at base with long Male genitalia: Uncus very thin and hook-shaped, hairy yellow bristle. Underside of forewing buff, sharp apex curved in angle of about 60°. Tegumen hindwing pale yellow. triangular, rather fragile, bottom rim of tegumen Female unknown. with two shallow thorns. Juxta extremely large, bot- Male genitalia: Very similar to those of L. gemmata. tle-shaped, neck of bottle forming a tube to guide Uncus very thin and hook-shaped, sharp apex mak- the long and thin aedeagus. Vinculum simple, saccus ing a curve with angle of about 60°, inside of curve not developed. Valvae with sacculus only connected slightly swollen. Tegumen triangular, rather frag- to cucullus at very base. Sacculus slender-based and ile, bottom rim of tegumen with two sharp thorns elongated to a long and thin curved extension with laterally. Juxta extremely large, bottle-shaped, neck sharp apex. Cucullus broadly based with some setae of bottle forming a tube to guide long and thin ae- on outside, tapering into a long extension, apically deagus. Vinculum simple, saccus not developed. curved and with sharp apex. Aedeagus very long and Valvae with sacculus only connected to cucullus at slender, apically curved to an angle of 100°. Vesica very base. Sacculus slender based, but broader than without cornuti. Coecum small. in gemmata, and elongated to a long and thin curved Female genitalia: Lamella vaginalis hardly sclerotized, extension with sharp apex, even sharper and thinner ostium small, narrow U-shaped. Antrum broadly than in gemmata. Cucullus broadly based with setae

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15 16

17 18

Figs 13–18. Habitus of Lambulosia species. — 13–14, L. nigrolineata sp. n.: 13, ♂ holotype, Mokwam, Arfak Mts, 6–10.xi.2011, Papua Barat, Indonesia, [RMNH.INS.910486]; 14, ♀ paratype, Mokwam, Arfak Mts, 6–10. xi.2011, Papua Barat, Indonesia [RMNH.INS.1098925]; 15–16, L. nigrotriangula sp. n.; 15, ♂ holotype, Mabi- labol, Kecamatan Oksibil, 21–25.ii.2005, Papua, Indonesia [RMNH.INS.910541]; 16, ♀ paratype, Mabilabol, Kecamatan Oksibil, 21–25.ii.2005, Papua, Indonesia [RMNH.INS.910542]; 17–18, L. punctilineata sp. n.; 17, ♂ holotype, Oksibil, Kabupaten Bintang, 14–16.ix.2011, Papua, Indonesia [RMNH.INS.910506]; 18, ♀ paratype, Mabilabol, Kecamatan Oksibil, 21–25.ii.2005, Papua, Indonesia [RMNH.INS.910507]. on the outside, tapering into a long extension, api- Lambulosia metallescens sp. n. cally slightly sinuously curved and with a sharp apex. Figs 9, 10, 23, 32, 39 Aedeagus very long and slender, apically curved to an angle of 140°. Vesica without cornuti (in Fig. 31 Holotype: ♂ BMNH(E)1403556, British New some wing scales are visible inside the tube). Coe- Guinea, Biagi, Mambare River, iii.1906, A.S. Meek, cum small. Rothschild Bequest B.M. 1939-I. Distribution Paratype: 1 ♀ BMNH(E)1403557, same data as The species has been found during the Foja Expedi- holotype. tion in the Foja Mountains (Fig. 44) in 2008, at an altitude of 1650 m. Diagnosis With almost unicolorous grey-brown forewing ex- Etymology cept for the bluish metallic shimmer at the forewing The species name refers to the dark brown forewing. base and along the costa. Downloaded from Brill.com09/24/2021 08:16:37PM via free access

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19 20

21 22

Figs 19–22. Male genitalia of Lambulosia species. — 19, L. aurantiaca (Rothschild, 1912), prep. NHMUK010914408; 20, L. arabuensis sp. n., prep. RMNH.INS.910508; 21, L. gemmata sp. n., prep. RMNH. INS.1098933; 22, L. brunnescens sp. n., prep. KSP-58586.

Description with bluish metallic shimmer. Hindwing of male General characters: Forewing length ♂ 10.5 mm, ♀ cream-yellow, triangular, folded and wrinkled. Cubi- 11.5 mm. Male with head, including short labial pal- tal vein at base with long hairy yellow bristle, tornal pus, and patagia yellow. Basal half of antenna yellow, area with some rough scaling. distal half grey. Thorax (except patagium and basal Female with frons of head, antenna and palpus half of tegula) grey with bluish shimmer. Abdomen yellow. Vertex of head, patagium and tegula buff, unicolorous grey-brown. Legs yellow with some grey thorax grey-brown with bluish shimmer. Abdomen scaling. Forewing of male short and broad, ground grey-brown with anal segment pale yellow. Legs yel- colour uniformly grey-brown, at base and along costa low, front leg with tibia and tarsus grey. Forewing Downloaded from Brill.com09/24/2021 08:16:37PM via free access

204346 120 Tijdschrift voor Entomologie, volume 161, 2018 more elongate than in male and with rounded ter- patagium and tegula, yolk-yellow. Antenna paler men, as in male uniformly grey-brown with bluish yellow. Abdomen unicolorous buff, anal tuft yellow. metallic shimmer basally and along costa. Hindwing Legs yellow. Forewing with ground colour grey, basal grey, with cubital vein at base with long hairy grey half with bluish metallic shimmer, especially along bristle. costa and dorsum. Dorsal rim, costal rim and along Male genitalia: Uncus slender and hook-shaped with veins from base to two-third of wing length yellow. sharp apex. Tegumen triangular and fragile, bottom Hindwing grey. Cubital vein at base with long hairy rim of tegumen with two large thorns. Vinculum yellow bristle. Underside of both wings unicolorous without saccus. Juxta large and bottle-shaped. Valvae buff. with cucullus and sacculus separated. Sacculus rather Male unknown. broadly based and gradually tapering to an elongate Female genitalia: Lamella vaginalis and antrum very and slender curved extension with slightly broadened weakly sclerotized, antrum short with a sclerotized spatula-shaped apex. Cucullus broad with a slender longitudinal triangularly shaped core. Ductus bursae and curved extension, near apex acutely angled to unsclerotized, rather broad and short. Cervix bursae about 120° and with small hockey-stick-shaped almost cylindrical and scobinate, covered with small apex. Cucullus at costa with long setae, at apex with spines arranged in several vertical rows. Cervix bur- small setae. Aedeagus very long and slender, slightly sae broadly connected to long globular bursa copula- S-shaped and with apex bent. No cornutus present. trix which turns to the left at an angle of 60°. Bursa Female genitalia: Lamella vaginalis and antrum very copulatrix without signum or other sclerotization. weakly sclerotized; antrum long, elongated, funnel- shaped, running into ductus bursae which has a Distribution sclerotized core and one coil near cervix bursae. The species is found in the northern part of the Star Cervix bursae almost cylindrical and almost entirely Mountains at 900 meter, in Borme, Papua, Indone- scobinate or covered with small spines which are ar- sia (Fig. 44). ranged in vertical rows. Cervix bursae broadly connected to oval bursa copulatrix which makes an angle Etymology of 90° to the left. Bursa copulatrix without signum The species name refers to the yellow radiation of or other sclerotization. lines on the grey forewing.

Distribution The species is found in Papua New Guinea in the The nigrolineata species group eastern central mountain range, at Biagi, Mambare In wing shape and pattern very similar to the auran- River (Fig. 44), most likely at 5000 feet (1500 me- tiaca species group, most distinguishing characters ter) according to most labels with information on the found in the genitalia. same collection event. General characters: Antennae in male and female fi- liform, scarcely ciliate. Abdomen robust, smoothly Etymology scaled with small scales, hardly any long hairlike The species name refers to the blue shimmer at the scaling, no anal tuft. Forewing of male broad, with base and along the costa of the grey-brown forewing. costa strongly arched, hindwing in male broad, dorsal area in some species wrinkled and slightly modified with pheromone scales. Female wings normally Lambulosia flavoradiata sp. n. shaped. Forewing pattern, if present, consisting of Figs 11, 40 two strongly angled transverse lines (angled even more sharply than in the aurantiaca species group). Holotype: ♀ KSP-25231, [Indonesia, Papua], Irian Hindwing without pattern but female has darker Jaya, Kec. Borme, Borme, 900 m, 17–24.ix.1998, (grey) hindwing. Henk v. Mastrigt. Male genitalia: Uncus robust, rather short, usually fin- Paratype: 1 ♀ KSP-25230, same data as holotype. ger-shaped. Juxta X-shaped, with distal part large and more strongly sclerotized than smaller caudal part. Diagnosis Valvae with cucullus and sacculus deeply divided The grey forewing with blue shimmer in the basal half into longitudinal parts but basally connected, cucul- which is crossed by pale yellow veins is diagnostic. lus with one or more additional processes. Aedeagus short and robust with developed carinal plate with Description smaller or larger carinal tooth, tube of aedeagus ven- General characters: Forewing length ♀ 10.5 mm. Fe- trally with structure that connects with juxta. Vesica male with head, labial palpus and thorax, including with one or more bunches of needle-shaped cornuti.

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204346 Rob de Vos: The genus Lambulosia Hampson 121

Female genitalia: Lamella vaginalis strongly sclero- fragments; width of median band variable. On un- tized, ostium constricted U-shaped. Antrum strong- derside of forewing cell and base of costa suffused ly sclerotized, short funnel-shaped followed by short with dark grey scales. Pale yellow hindwing triangu- sclerotized ductus bursae. Cervix bursae integrated lar with particularly tornal and dorsal areas some- in distal part of bursa copulatrix which is partly what wrinkled and folded. Cubital vein basally with strongly sclerotized or covered with tiny and larger long hairy pale yellow bristle and anal vein with long spines. hairlike scales of the same colour. Distribution: As far as yet known the species are Female head and thorax yolk-yellow, including distributed in the Indonesian part of New Guinea labial palpus. Antenna basal half dark grey, distal (Fig. 45) and restricted to mountain areas. half yellow. Thorax without the two curved stripes of male. First two segments of abdomen buff, rest of abdomen dark grey. Legs dark grey, foreleg and Lambulosia nigrolineata sp. n. middle leg with tibia and tarsus black, hindleg en- Figs 13, 14, 24, 33, 41 tirely grey. Forewing yellow, with costal rim in basal area black, in one specimen this is less pronounced. Holotype: ♂ RMNH.INS.910486, Indonesia, Hindwing triangular, pale grey, at apex and termen Papua Barat, Bird’s Head Peninsula, Arfak Moun- suffused with dark grey. Cubital vein at base with tains, Mokwam, 1510 m, 1°06’ S, 133°54’ E, 6–10. a long hairy dark yellow bristle. Underside almost xi.2011, at light, Papua Insects Foundation, [former] uniformly pale grey, basal half of forewing at costa Collectie Zoölogisch Museum Amsterdam. suffused with dark brown, distal half along costa and Paratypes (7 ♂, 2 ♀): 5 ♂ (RMNH.INS.910487, termen yellow. 1098924, 1098926, 1098927, 1098928), 2 ♀ Male genitalia: Uncus short and finger-shaped, (RMNH.INS.1098923, 1098925), same data as covered with long setae. Tegumen broad. Juxta X- holotype; 1 ♂ RMNH.INS.910488, Indonesia, shaped with apical part short and thick, caudal part Papua [Barat], Manokwari Distr., Mokwam (Siy- with curved thin branches. Valvae with cucullus and oubrig), 1400–1800 m, 1°06.26’ S, 133°54.41’ E, sacculus deeply divided. Sacculus rather narrow- sec./prim. forest, 24–28.ii.2007, leg. G. Withaar, based with two extensions. One shorter straight [former] Collectie Zoölogisch Museum Amsterdam; finger-shaped extension, covered with short setae, 1 ♂ RMNH.INS.1098929, Indonesia, Papua Barat, another longer slightly curved club-shaped extension Bird’s Head Peninsula, Arfak Mountains, Demaisi, with apex broadened and covered with setae. Cucul- 1637 m, 1°10’ S, 133°53’ E, 14.xi.2011, at light, lus narrow and elongated, hockey-stick-shaped with Papua Insects Foundation. blunt angle of about 120°. Rounded apex of cucullus with tiny setae. Aedeagus short and slightly sinuous. Diagnosis Apex of tube half trumpet-shaped, at ventral side Forewing in male bright yellow with two conspicu- open. Four needle-shaped cornuti present on vesica. ous black transverse lines. Female forewing unicolor- Ventrally halfway tube of aedeagus a half sclerotized ous yellow, except for a black costal rim near fore- structure which connects aedeagus with juxta. Coe- wing base. cum rather long. Female genitalia: Lamella vaginalis strongly sclero- Description tized, ostium narrow U-shaped. Sclerotized an- General characters: Forewing length ♂ 9–11 mm, trum broadly funnel-shaped, ductus bursae strongly ♀ 11–11.5 mm. Male with head and thorax yolk- sclerotized and flattened. Bursa copulatrix with yellow, including antenna and labial palpus. Tho- distal two-third uniformly sclerotized with fold at rax with pair of black curved short stripes behind left side and ridge forming cervix bursae with tube patagia which might be stronger or less prominent on whose apex ductus seminalis originates, right in some specimens. Foreleg yellow, tibia and tarsus side stronger sclerotized and connected with ductus black, middle leg with tibia grey, hindleg entirely bursae. Caudal third of bursa slightly sclerotized, grey. Abdomen grey-brown with anal segment buff. folded and scobinated with numerous tiny spines Forewing rather elongate, not as broad as in preced- which are arranged and clustered in irregular curved ing species, costa strongly arched in basal quarter of ridges. wing. Forewing bright yellow with two black trans- Distribution: The species has so far only been found verse lines. Basal transverse line from costa to middle in the northern Arfak Mountains (Papua Barat, In- of dorsum with some shallow dentate angles, distal donesia) (Fig. 45) at altitudes between 1510 and transverse line from costa to pretornal area with 1637 m. distally directed acute rounded angle. Lines usu- Etymology: The name refers to the black transverse ally unbroken, but in some specimens scattered in lines on the forewing of the male.

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204346 122 Tijdschrift voor Entomologie, volume 161, 2018

23 24

25 26

Figs 23–26. Male genitalia of Lambulosia species. — 23, L. metallescens sp. n., prep. BMNH(E)1403556; 24, L. nigrolineata sp. n., prep. RMNH.INS.910488; 25, L. nigrotriangula sp. n., prep. RMNH.INS.910541; 26, L. obscurata sp. n., prep. RMNH.INS.910505.

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204346 Rob de Vos: The genus Lambulosia Hampson 123

27 28

29 30 31

Fig. 27–31. Male genitalia and aedeagi of Lambulosia spp. — 27, Lambulosia punctilineata sp. n., prep. RMNH. INS.910506; 28, L. aurantiaca (Rothschild, 1912), the top of the juxta still attached to the tube of the aedeagus, prep. NHMUK010914408; 29, L. arabuensis sp. n., prep. RMNH.INS.910508; 30, L. gemmata sp. n., prep. RMNH.INS.1098933; 31, L. brunnescens sp. n., prep. KSP-58586.

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204346 124 Tijdschrift voor Entomologie, volume 161, 2018

32 33 34

35 36

Figs 32–36. Aedeagi of Lambulosia species. — 32, L. metallescens sp. n., prep. BMNH(E)1403556; 33, L. nigrolineata sp. n., prep. RMNH.INS.910488; 34, L. nigrotriangula sp. n., prep. RMNH.INS.910541; 35, L. obscurata sp. n., prep. RMNH.INS.910505; 36, L. punctilineata sp. n., prep. RMNH.INS.910506.

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204346 Rob de Vos: The genus Lambulosia Hampson 125

37 38

39 40

Figs 37–40. Female genitalia of Lambulosia species. — 37, L. aurantiaca (Rothschild, 1912), prep. NHMUK010914409; 38, L. gemmata sp. n., prep. RMNH.INS.1098935; 39, L. metallescens sp. n., prep. BMNH(E)1403557; 40, L. flavoradiata sp. n., prep. KSP-25231.

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204346 126 Tijdschrift voor Entomologie, volume 161, 2018

41 42

Figs 41–43. Female genitalia of Lambulosia species. — 41, L. nigrolineata sp. n., prep. RMNH.INS.910488; 42, L. nigrotriangula sp. n., prep. RMNH.INS.910541; 43, L. punctilineata sp. n., prep.Downloaded RMNH.INS.910507. from Brill.com09/24/2021 08:16:37PM via free access

204346 Rob de Vos: The genus Lambulosia Hampson 127

Fig. 44. Map of New Guinea with localities of the aurantiaca species group in the genus Lambulosia. Red dot, L. aurantiaca (Rothschild, 1912); orange dot, L. arabuensis sp. n.; blue dot, L. gemmata sp. n.; green dot, L. brunnescens sp. n.; black dot, L. metallescens sp. n.; yellow dot, L. flavoradiata sp. n.

Lambulosia nigrotriangula sp. n. black triangular patch at costa, in some specimens Figs 15, 16, 25, 34, 42 connected along costa with base by the same colour. Pale yellow hindwing in male triangular, particularly folded and wrinkled along the veins and in tornal Holotype: ♂ RMNH.INS.910541, Indonesia, Pap- and dorsal area. Cubital vein at base with a long ua, Kecamatan Oksibil, Mabilabol, 1340 m, 4°54’ S, hairy pale yellow bristle, some rough scaling in the 140°37’ E, 21–25.ii.2005, at light, disturbed mon- tornus. tane forest, UNCEN-ZMA Expedition, Papua Indo- Female like male with yellow head, including an- nesia 2005, [former] Collectie Zoölogisch Museum tenna and palpus, and thorax. Abdomen grey-buff. Amsterdam. Forewing of normal shape, with rounded termen. Paratypes (1 ♂, 2 ♀): 1 ♀ RMNH.INS.910542, Forewing yellow with black elongated triangular same data as holotype; 1 ♂, RMNH.INS.1098932, subbasal patch at costa which is connected with wing Museum Leiden, Nieuw Guinea Exp., K.N.A.G. base along costa. Hindwing dark grey with apically 1939, Paniai, 4.ix.1939; 1 ♀ RMNH.INS.1098948, and along subapical fringes yellow coloration. Cubi- Ned. Nw. Guinea, Star Mountain Range, Bivak 36, tal vein at base with long hairy dark yellow bristle. 30.vii.1959, 1220 m, Neth. New Guinea Exp. Underside of forewing in male and female in centre suffused with dark grey. Diagnosis Male genitalia: Uncus slender, S-shaped with sharp Male with short and broad yellow forewing with a apex, in middle covered with long setae. Tegumen black triangular subbasal costal spot. In the female triangular. Vinculum simple, saccus not developed. the forewing is normally shaped with the same spot, Juxta with dorsal part H-shaped, strongly sclerotized but with dark hindwing. and laterally covered with needles and on apices left and right a large thorn of different length (left longer Description than right). Ventral part of juxta with two less sclero- General characters: Forewing length ♂ 10.5–11.5 tized tapering branches. Valvae elongate, with sacculus mm, ♀ 10.5–11 mm. Male with head, including an- broadly based and with short, curved, finger-shaped tenna and labial palpus, and thorax yellow, abdomen apical process, covered with setae. Cucullus elongate grey-buff and legs dark grey. Forewing of male short with complex structure. Halfway cucullus an angle and broad, costa strongly arched, apex and tornus of 90° followed by a strongly curved apical part rounded. Ground colour bright yellow with subbasal with three processes: one small finger-shaped costal Downloaded from Brill.com09/24/2021 08:16:37PM via free access

204346 128 Tijdschrift voor Entomologie, volume 161, 2018

Fig. 45. Map of New Guinea with localities of the nigrolineata species group in the genus Lambulosia. Red dot, L. nigrolineata sp. n.; yellow dots, L. nigrotriangula sp. n.; green dots, L. obscurata sp. n.; black stars, L. punctilineata sp. n. process halfway apical part and forked apex with Holotype: ♂ RMNH.INS.910505, Indonesia, Pap- two long and sharp thorns. Aedeagus short and ua, Kecamatan Nipsan, Walmak, 1710 m, 4°07’ S, rather thick and curved to 90°. Distally with nar- 139°38’ E, 10–16.ii.2005, at light, disturbed mon- rowly extended carinal plate with claw-shaped thorn. tane forest, UNCEN-ZMA Expedition, Papua Indo- Vesica at base with scobinate bar-shaped cornutus, nesia 2005, [former] Collectie Zoölogisch Museum distally with five long needle-shaped cornuti (in slide Amsterdam. RMNH.INS.910541 top of two cornuti broken and Paratype: 1 ♂ KSP-42170, Papua, Sarmi, Mambera- laying near their origin). mo Basin, Peg. Foja, 2°34.5’ S, 138°42.9’ E, 1650 Female genitalia: Lamella vaginalis strongly sclero- m, 23.xi-07.xii.2005, HvM/CI-RAP. tized, ostium constricted U-shaped. Sclerotized antrum broadly funnel-shaped, ductus bursae strongly Diagnosis sclerotized, S-shaped, short and flattened. Bursa The short broad buff forewing has the transverse copulatrix with distal half sclerotized with at left side lines only accentuated near the costa, running to- cap-shaped cervix bursae forming tube with ductus ward the dorsum they fade. Hindwing bone-white. seminalis originating from apex, right side stronger sclerotized and connected with ductus bursae (cf. ni- Description and for differences). Caudal grolineata nigrotriangula General characters: Forewing length ♂ 11 mm. Female half of bursa unsclerotized, globular and scobinated unknown. Head, including antenna and labial pal- with numerous more or less equally arranged tiny pus, thorax, legs and abdomen buff. Labial palpus spines (not clustered in ridges like in nigrolineata). rather long. Forewing short and broad, with costa arched, especially in basal area. Tornus rounded. Distribution Forewing buff, sprinkled with dark brown scales. The species is found in the Star Mountains and west- Two incomplete black transverse lines most accentu- ern Snow Mountains (East of Lake Paniai) (Fig. 45) ated at costa. Basal transverse line broken into scat- at altitudes between 1200 and about 2000 m. tered fragments, at dorsum totally invisible, distal Etymology transverse line running from costa to pretornal area The name refers to the black triangular patch at the but after first curve near costa very faint, distally forewing costa. directed with an acute rounded angle. Hindwing triangular, particularly at margins somewhat wrinkled, bone-white, at dorsum and tornal area buff-yellow. Lambulosia obscurata sp. n. Cubital vein at base with a hairy bone-white bristle. Figs 12, 26, 35 Underside of forewing in centre grey-brown. Downloaded from Brill.com09/24/2021 08:16:37PM via free access

204346 Rob de Vos: The genus Lambulosia Hampson 129

Male genitalia: Uncus short, straight finger-shaped, Description: Forewing length ♂ 9.5 mm, ♀ 8–9 covered with setae. Tegumen triangular, rather frag- mm. Male with head, including antenna and labial ile. Juxta rather narrow shield-shaped. Vinculum palpus, and thorax brown, sprinkled with darker simple, saccus not developed. Valvae with cucullus brown scales. Labial palpus in male rather long. Legs and sacculus deeply divided. Sacculus broadly based, grey-brown, foreleg with tibia and tarsus dark brown. strongly tapering into long, thin and slightly curved Abdomen brown with middle section darker brown. extension. Apex of extension flattened spatula-like. Forewing of male broader than in female, in male Extension at outside with long setae. Cucullus elon- with arched costa and rounded tornus. Forewing gated and slender with curved finger-shaped costal brown, sprinkled with darker brown scales. Two process. Extended part of cucullus strongly curved, transverse lines each formed by row of small dots toward apex broadening and claw-shaped. Aedeagus which are most accentuated at costa. Basal transverse robust, straight, at coecum slightly curved. Tube of line formed by four dots in row with an acute angle, aedeagus apically with strong carinal tooth, apex of distal transverse line with costal dot strong, following tube rounded and ventrally half open with some dots smaller and of equal size in a row, distally direct- stronger sclerotization. Base of aedeagus ventrally ed with an acute rounded angle running to pretornal with strongly sclerotized hook-shaped structure with area. Hindwing in male buff, particularly folded and distal teeth. Vesica with three lobes, dorsal lobe be- wrinkled in dorsal area where there is rather rough ing unscobinated, central lobe carrying two bunches scaling. Cubital vein at base with hairy buff bristle. of needle-shaped cornuti, central and ventral lobes Female with head and thorax, including antennae scobinated with tiny chitinous drops. and palpus cinnamon-brown, only scarcely sprin- Note: The base of the aedeagus was hooked behind kled with darker brown scales. Palpus shorter than the rim of the juxta and was very hard to remove. in male. Foreleg and middle leg grey-brown, tibiae It is possible that the function of this structure is to and tarsi black, hindleg entirely grey-brown. Abdo- provide strong attachment at the genital armature. men entirely grey-brown. Female with forewing pattern more distinct, only scarcely sprinkled with dark Distribution: Two specimens of this species have brown scales, hindwing grey, fringes longer than in been found, one in the Jayawijaya Mountains and male. Cubital vein at base with hairy yellow-buff one in the Foja Mountains (Fig. 45). Both known bristle. Underside of forewing in male and female in specimens were found between altitudes of 1650 and centre suffused with dark grey. 1710 meters. Male genitalia: [prep. RMNH.INS.910506] Un- Etymology: The name of this species refers to the cus short, broad leaf-shaped and laterally flattened obscure pattern of transverse lines. (in Fig. 27 in ventral view, not showing the broad appearance) with a small hook-shaped apex, covered with setae, at base with long setae. Tegumen rather Lambulosia punctilineata sp. n. compact, arched, vinculum rather simple without Figs 17, 18, 27, 36, 43 developed saccus. Juxta rather narrow, shield-shaped. Sacculus well developed, broadly based with long, Holotype: ♂ RMNH.INS.910506, Indonesia, strongly sclerotized curved extension, at base of this Papua, Kabupaten Bintang, Oksibil, 5°04.49’ S, extension and along inside of curved part covered 140°38.09’ E, 14–16.ix.2011, Leg. F. Groenen. with bristles. Apex of saccular extension sharp. Cu- Paratypes (3 ♀): 1 ♀ RMNH.INS.910507, Indone- cullus small and simple, only accentuated by small sia, Papua, Kecamatan Oksibil, Mabilabol, 1340 m, finger-shaped process at costa. Some setae present on 4°54’ S, 140°37’ E, 21–25.ii.2005, at light, disturbed process. Aedeagus short, S-shaped with apical part montane forest, UNCEN-ZMA Expedition, Papua split open and carrying some granulation. Distal Indonesia 2005, [former] Collectie Zoölogisch Mu- part ventrally with carinal elevation with one tiny seum Amsterdam; 1 ♀ RMNH.INS.1098930, In- thorn. Vesica small and globular, dorsally with co- donesia, Papua Barat, Bird’s Head Peninsula, Arfak rona of needle-shaped cornuti, ventrally with bunch Mountains, Demaisi, 1637 m, 1°10’ S, 133°53’ E, of much smaller needles. 14.xi.2011, at light, Papua Insects Foundation; 1 Female genitalia: [prep. RMNH.INS.910507] ♀ RMNH.INS.1098931, Indonesia, Papua Barat, Lamella vaginalis sclerotized with deep V-shaped Bird’s Head Peninsula, Arfak Mountains, Benyas, ostium. Antrum short, sclerotized, folded and flat, 722 m, 1°27’ S, 134°01’ E, 17.xi.2011, at light, running into broad and sclerotized ductus bursae. Papua Insects Foundation. At left side a small unsclerotized cervix bursae where ductus seminalis originates, small wrinkled lobe on Diagnosis: The smallest species in the genus, with ductus bursae and scobinated band running from brown forewing and dark hindwing. The transverse antrum to distal part of the bursa copulatrix where it lines are formed by a row of dots. spreads. Bursa copulatrix rather small, globular and Downloaded from Brill.com09/24/2021 08:16:37PM via free access

204346 130 Tijdschrift voor Entomologie, volume 161, 2018 somewhat wrinkled with inner side at left and right Catalogue of the Amatidae and Arctiadae (Nolinae and strongly covered with large thorn-like signa, accom- Lithosianae) in the Collection of the British Museum. panied by tiny needles. Caudally without these signa. – British Museum, London, UK, 858 pp. Distribution: Widely distributed in Indonesian Holloway, J.D., G. Kibby & D. Peggie, 2001. The Families New Guinea, found in the Arfak Mountains (Bird’s of Malesian Moths and Butterflies. Fauna Malesiana Head Peninsula) and in the Star Mountains (Central Handbook 3. – Brill, Leiden, The Netherlands, 455 pp. Mountain Range) (Fig. 45) at altitudes between 722 Kôda, N., 1987. A generic classification of the subfamily and 1637 meters. Arctiinae of the Palaearctic and Oriental Regions based Etymology: The name of the species refers to the on the male and female genitalia (Lepidoptera, Arcti- idae), Part I. – Tyô to Ga Osaka 38: 153–237. transverse lines compiled by dots. Le Roux, C.C.F.M., 1940. De expeditie van het Koninklijk Nederlandsch Aardrijkskundig Genootschap naar het Acknowledgements Wisselmerengebied en het Nassau-gebergte op Neder- landsch Nieuw-Guinea in 1939. – Tijdschrift van het This publication would never have been possible Koninklijk Nederlandsch Aardrijkskundig Genootsc- without the help of the following persons and insti- hap 57: 38–55, 175–232. tutions for which I am truly thankful: Alberto Zilli Robinson, G.S., 1976. The preparation of slides of Lepi- (NHMUK, London) and Evie Lilly Warikar (KSP, doptera genitalia with special reference to the Micro- Waena, Papua) for letting me borrow the needed lepidoptera. – Entomologist’s Gazette 27: 127–132. material from their collections; Gyula Laszlo (East Rothschild, W., 1912. New Lithosianae. – Novitates Grinstead, UK) for his help during the process of Zoologicae 19: 212–246. writing and last but not least the Uyttenboogaart- Scoble, M.J., 1992. The Lepidoptera. Form, Function Eliasen Foundation (Dutch Entomological Society, and Diversity. – Oxford University Press, Oxford, 404 The Netherlands) for the financial support of the pp. necessary visits to the mentioned museum collec- Strand, E., 1922. Arctiidae: Subfam. Lithosiinae. – In: tions and excursions in Papua, Indonesia, which re- H. Wagner (ed.), Lepidopterorum Catalogus, Vol. 26, sulted in the discovery of new species described in pp. 501– 899. W. Junk, Berlin, Germany. this publication. Tuxen, S.L., 1970. Taxonomist’s glossary of genitalia in insects. – Munksgaard, Copenhagen, Denmark, 359 pp. References Watson, A., D. S. Fletcher & I.W.B. Nye, 1980. The Ge- neric Names of Moths of the World, Vol 2. Noctuoidea Draudt, M., 1914. Arctiidae, pp. 134–223. – In: A. Seitz (part): Arctiidae, Cocytiidae, Ctenuchidae, Dilobidae, (Ed.), Die Gross–Schmetterlinge der Erde 10: Spinner Dioptidae, Lymantriidae, Notodontidae, Strepsimani- und Schwärmer des Indo–Australischen Gebiets. A dae, Thaumetopoeidae, Thyretidae. – Trustees of the Kernen, Stuttgart, Germany. British Museum (Natural History), London, UK, Hampson, G.F., 1914. Catalogue of the Lepidoptera 228 pp. Phalaenae in the British Museum. Supplement 1:

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204346