国立科博専報，（45）: 13–40, 2008年3月28日 Mem. Natl. Mus. Nat. Sci., Tokyo, (45): 13–40, March 28, 2008 A Faunistic Review of the Pselaphine Species (Insecta, Coleoptera, Staphylinidae) Known from Borneo Shûhei Nomura1 and Maryati Mohamed2 1 Department of Zoology, National Museum of Nature and Science, 3–23–1 Hyakunincho, Shinjuku, Tokyo 169–0073, Japan E-mail: [email protected] 2 Institute for Tropical Biology and Conservation (ITBC), University Malaysia Sabah, Locked Bag 2073, 88999 Kota Kinabalu, Sabah, Malaysia Abstract. A checklist of 123 species of pselaphine beetles belonging to 44 genera known from Borneo is provided with many pictures of types and identified specimens. A list of 34 pselaphine species collected in 2006 from Inobong, Crocker Range in Sabah is also given. Key words : Pselaphinae, Staphylinidae, fauna, systematics, Borneo. name for the junior homonym Mina) which be- Introduction comes differentiated especially in Borneo. He The pselaphine beetles belonging to the added three new species of the genus Cratna staphylinid subfamily Pselaphinae are small bee- (Löbl, 1975, 1986), a new genus, Siteromina tles inhabiting leaf litter, decayed wood, nests of based on the type species from Borneo (Löbl, ants, caves, tree holes, etc. They are one of the 1979), and a new species of a new genus, most diverse subfamilies of the Staphylinidae. Sabarhytus (Löbl, 2000). Burckhardt (1986) de- After Newton & Chandler (1989), 8,890 species scribed two species of Plagiophorus under the in 1,220 extant genera are known worldwide. In generic name Cyathiger. Recently, Löbl & Kur- the tropical Asia, they exhibit tremendous batov (2004) defined a new genus, Brunomanse- species diversity. Nomura & Idris (2003) listed ria based on the type species from Borneo. up 109 species of the tribe Batrisini known from Up to the present, 123 pselaphine species are Malaysia and Sinagpore. Additionally, Nomura known from Borneo. A checklist of them is pro- & Idris (2005) presented a list of 264 known vided in the present study. Many pictures of type species of the four supertribes, Batrisitae (includ- and authentic specimens from Borneo preserved ing Batrisini), Goniaceritae, Pselaphitae and in the Muséum National d’Histoire Naturelle, Clavigeritae from Malaysia and Singapore. Paris (MNHN) and the Muséum d’Histoire Na- On the other hand, not so many pselaphine turelle, Genève (MHNG) are presented. A list of species have been recorded from Borneo. The the species collected from Inobong, Crocker first report was made by Westwood (1870) to- Range, Sabah is also given. gether with descriptions of two species. From 1882 to 1897, three great coleopterologists, L. W. Materials and Methods Schaufuss, E. Reitter and A. Raffray described many pselaphine species from Borneo based on The checklist was compiled by the first author materials collected by Glabowski and Simon. and cross-checked with a tentative database by Bryant (1915a, b, c) reported 13 new species Newton and Thayer (pers. comm.). The pictures from Sarawak. Löbl (1973) described 17 were taken by a digital camera Nikon Coolpix Bornean species of the genus Mnia (replaced 995 attached to a binocular microscope (Nikon 14 Shûhei Nomura and Maryati Mohamed SM-5) at MNHN in February to March 2007 and brackets. at MHNG in May 2004. Pselaphine specimens were collected by the Supertribe Bythinoplectitae first author at Inobong, Crocker Range, Sabah in Tribe Dimerini Mar. 2006 by sifting leaf litter, beating foliages and from ant and termite nests. The field work Genus Octomicrus Schaufuss (1) was arranged by the second author. The collected Octomicrus Schaufuss, 1877: 14. Type species: O. longu- specimens were dried and mounted in usual lus Schaufuss, by monotypy. methods as shown in Nomura & Idris (2003). Singhala Raffray, 1898: 213, 255 (preoccupied). Shingala Raffray, 1898: 255 (misspelling). They were observed using binocular microscope Dimelus Fiori, 1899: 103 (subgenus). Type species: (Leica MZ Apo) and identified by the first author. Dimelus staphylinoides Fiori, by monotypy. Institutions, museums and type depositories Diastictulus Raffray, 1904: 577 (replacement name for are abbreviated as follows: MHNG: Muséum Singhala Raffray). d’Histoire Naturelle, Genève; MNHN: Muséum Remarks. This genus is divided into two National d’Histoire Naturelle, Paris; NSMT: Na- subgenera, the nominotypical subgenus and the tional Muséum of Nature and Science, Tokyo subgenus Dimelus Fiori. The nominotypical sub- (formerly National Science Muséum, Tokyo); genus including four Asian species is known UMS: Institute for Tropical Biology and Conser- from Southeast Asia and Africa after Jeannel vation (ITBC), University Malaysia Sabah. (1956a). List of species: A Checklist of Pselaphine Species BN 001. Octomicrus divergens Reitter, 1884: Known from Borneo 420. Borneo (Telang) [Borneo] (Pl. 1: 1, 2). In the checklist shown below, all valid generic names are given, with the number of species in Tribe Bythinoplectini parentheses, and the synonymic list is followed. Subtribe Bythinoplectina In the synonymic list, each generic name is noted Genus Zethopsus Reitter (1) the original source and the status. Each genus is Zethopsus Reitter, 1880: 85 (replacement name for Zethus commented in Remarks on its systematic posi- Schaufuss). Type species: Zethus opacus Schaufuss, by tion and identity among similar taxa. subsequent monotypy in Schaufuss (1877). All valid scientific names and some important Zethus Schaufuss, 1872: 246 (preoccupied). synonyms of pselaphine species known from Remarks. According to Coulon (1989), this Borneo are listed up. The valid specific names genus is characterized by the 10-segmented an- were coded as BN01, BN02, BN03...; BN is an tenna with simple unisegmented antennal club abbreviation of “Borneo”. The important syn- and the verrucose dorsal surface of the body. It onym(s) (indicated as Syn.) are listed after the includes ten Asian species including the type valid name and coded as BN01A, B, C.... species, Z. opacus Schaufuss known from Thai- For each scientific name of the genus and the land. species, author’s name(s), year and the following List of species: symbols (a, b, c, . .) which are coincident with BN 002. Zethopsus simplicifrons Reitter, 1884: the list of literature shown at the tail, and the 419. Telang [Borneo] (Pl. 1: 3, 4). page number in original description is followed. The originally combined genus (if it was changed) is shown in parentheses. The type locality is also added and distribu- tional range of the species is indicated in square A Faunistic Review of the Pselaphine Species (Insecta, Coleoptera, Staphylinidae) Known from Borneo 15 Plate 1. 1. Octomicrus divergens Reitter, syntype. 2. Ditto, type labels. 3. Zethopsus simplicifrons Reitter, syn- type. 4. Ditto, type labels. 5. Aphilia femorata Reitter, syntype. 6. Ditto, type labels. 7. Batrisodes? lateridens (Reitter), syntype. 8. Ditto, type labels. 9. Batrisoschema lateridentata Reitter, syntype. 10. Ditto, type labels. 11. Borneana biformis Schaufuss, syntype. 12. Ditto, type labels. 13. Siteromina dayak Löbl, holotype (MHNG). 14. Cratna pedestris Löbl, holotype (MHNG). 15. Eubatrisus pubifer (Reitter), non type. 16. Ditto, labels. 16 Shûhei Nomura and Maryati Mohamed Remarks. This genus includes the type Supertribe Euplectitae species, B. lateridentata and a Japanese species Tribe Trichonychini B. euplectiforme (Sharp). It is a member of the Subtribe Bibloporina genus-group of Tribasodes defined by Nomura & Idris (2003) in having the bidenticulate prono- Genus Aphilia Reitter (1) tum, the male hind trochanter with a long spine Aphilia Reitter, 1882b: 210. Type species: A. femorata and the male genitalia with an incomplete dorsal Reitter, by subsequent monotypy in Reitter (1883). Pseudozibus Jeannel, 1956b: 365. Type species: P. sim- apophysis. plicipennis Jeannel, by original designation. List of species: Aphiliopsis Besuchet, 1956: 369. Type species: Aphiliops BN 006. Batrisoschema lateridentata Reitter, crassipes Raffray, by original designation. Syn- 1884: 400. Barabei [Borneo] (Pl. 1: 9, 10). onymized with Pseudozibus by Jeannel (1958: 6). Remarks. The genus Pseudozibus Jeannel Genus Batrisus Aubé (1) known from Japan, Italy, Africa, etc. was syn- Batrisus Aubé, 1833: 45. Type spesies: Batrisus formi- onymized with the genus Aphilia by Chandler carius Aubé (see remarks). (2001). List of species: Remarks. This genus belongs to the genus- BN 003. Aphilia femorata Reitter, 1883c: 296. group of Batrisus defined by Nomura & Idris Borneo (Tumbang-Hiang) [Borneo] (Pl. 1: 5, (2003). Typical species of this genus is known 6). only from Europe. The type species of this genus was argued, but was not designated by Newton & Chandler (1989). However, it was designated Ba- Supertribe Batrisitae trisus formicarius in Löbl & Besuchet (2004). Tribe Batrisini List of species: Subtribe Batrisina BN 007. Batrisus? grypochirus Schaufuss, Genus Batrisodes Reitter (2) 1882b: 379. Borneo, Sarawak [Borneo (Sarawak)]. Batrisodes Reitter, 1882a: 134. Type species: Batrisus de- laportei Aubé, designated by Lucas (1920). Remarks. In recent studies, the typical Ba- Genus Borneana Schaufuss (1) trisodes is known to be restricted to Europe to Borneana Schaufuss, 1882c: 140. Type species: B. bi- Northeast Asia (Nomura, 2007). formis Schaufuss, by monotypy. List of species: Remarks. This is a genus endemic to Bor- BN 004. Batrisodes? exiguus Raffray, 1882: neo, including only one species shown below. It 61. Java [Indonesia (Java, Sumatra, Borneo)]. is difficult to be classified