On the Lathrobiina of Taiwan (Coleoptera: Staphylinidae: Paederinae) Author Assing, Volker text Beiträge Zur Entomologie = Contributions to Entomology 2010 2010-12-20 60 2 301 361 https://www.contributions-to-entomology.org/article/view/1781 journal article 10.21248/contrib.entomol.60.2.301-361 0005-805X 5365391 Lobrathium bidigitatum sp. n. ( Figs 211-218 ) Type material: Holotype ♂ : " Taiwan , Kaohsiung Hsien , Peinantashan trail, 2450 m , 2.V.1995 , A. Smetana [ T170 ] / Holotypus ♂ Lobrathium bidigitatum sp. n. , det. V . Assing 2010" (cAss). Paratype : 1 ♀ : " Taiwan , Kaohsiung Hsien , Peinantashan trail, 2500 m , 4.VII.1993 , A. Smetana [ T136 ]" (cSme) . Description: Habitus and forebody as in Figs 211-212 . External morphology as in L. digitatum , distinguished only by the sexual characters: ♂ : posterior margin of tergite VIII almost truncate in the middle; sternite VII as in L. digitatum ; sternite VIII with broad median impression, this impression with two clusters of numerous pegsetae, which are less extensive than in L. digitatum , posterior excision moderately deep and broadly U-shaped ( Fig. 213 ); aedeagus of similar morphology as in L. digitatum , but apical lobes slightly longer, more slender, and more broadly separated, and subapical portion of ventral process not projecting laterad ( Figs 214-215 ). ♀ : posterior margin of tergite VIII weakly angled in the middle ( Fig. 216 ); sternite VIII broader than long, approximately as long as tergite VIII, posteriorly weakly produced, posterior margin indistinctly concave in the middle ( Fig. 217 ); segments IX-X of similar shape as in L. digitatum ( Fig. 218 ). Figs 211-218: Lobrathium bidigitatum sp. n. : habitus ( 211 ); forebody ( 212 ); male sternite VIII ( 213 ); aedeagus in lateral and in ventral view ( 214-215 ); female tergite VIII ( 216 ); female sternite VIII ( 217 ); female tergites IX-X ( 218 ). Scale bars: 211-212: 1.0 mm; 213-218: 0.5 mm. Comparative notes: As can be inferred from the similar external and sexual characters, particularly the derived morphology of the aedeagus, L. bidigitatum is very closely related to L. digitatum , from which it is best distinguished based on the shape of the apical lobes of the aedeagus. Etymology: The specific epithet is an adjective derived from the Latin prefix bi- (two) and the noun digitus (finger) and refers to the shape of the apical lobes of the aedeagus. Distribution and natural history: The type specimens were collected in the Peinantashan, Kaohsiung Hsien, southern Taiwan , at altitudes of 2450-2500 m . They were sifted from wet leaf litter, moss, and other debris in a mature mixed forest and beneath bushes along an abandoned forest road.