Cephennomicrus japonigenus (Jałoszyński & Hoshina)

Jałoszyński, Paweł, 2024, A new species and new records of Cephennomicrus Reitter in Japan (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 5523 (1), pp. 139-145 : 142

Cephennomicrus japonigenus (Jałoszyński & Hoshina)

( Figs 6 , 8 )

Neseuthia japonigena Jałoszyński & Hoshina, 2003: 55 . New distributional data in Jałoszyński (2005); additional morphological details in Jałoszyński (2009a).

Cephennomicrus japonigenus (Jałoszyński & Hoshina) , Jałoszyński, 2008: 33.

Material studied. 1 ♂, Japan, Kyushu, Saga Prefecture, Tara-chō, Mt. Hobashiradake , 600 m, 18.05.2021, flight intercept trap, leg. M. Nishida ( NSMT) .

Remarks. This species is known to occur in Japan (Tokunoshima Is., a part of Kagoshima Prefecture) and the Chinese province of Fujian. The new locality on Kyushu is the first record of Cephennomicrus on this island and relatively distant from both previously known collecting sites. Externally C. japonigenus is a rather unremarkable species, but its aedeagus ( Fig. 6 ) is unique in having a strongly basally shifted diaphragm and a lateral pair of elongate bunches composed of slender sclerites flanking a median elongate structure, the latter is narrowing distally.

Figures

FIGURE 8. Distribution of nominal Cephennomicrus species in Japan, with aedeagus illustrated for each species: a, C. tanakai Hoshina; b, C. japonigenus (Jałoszyński & Hoshina); c, C. cactiformis (Jałoszyński & Hoshina); d, C. ushimanus Jałoszyński; e, C. okinawanus (Jałoszyński, S. Arai & K.Arai); f, C. disjunctus (Jałoszyński, S. Arai & K. Arai); g, C. nagoanus Jałoszyński; h, C. aji Jałoszyński; i, C. tenebrosus Jałoszyński; j, C. nomurai (Jałoszyński & Hoshina); k, C. hobbiti (Jałoszyński & Hoshina); l, C. iriomotensis Jałoszyński; m, C. pseudojaponigenus Jałoszyński.

FIGURES 1–7. Cephennomicrus tenebrosus sp. nov., holotype (1–5), C. japonigenus Jałoszyński & Hoshina (6), and C. nagoanus Jałoszyński (7). Dorsal habitus (1), aedeagus in ventral (2, 4, 6, 7) and lateral (3, 5) views.