Apteroloma belousovi, Růžička & Pütz, 2009

Apteroloma belousovi View in CoL sp. nov.

( Figs. 5 View Figs , 7, 9, 11 View Figs )

Type locality. China, Sichuan province, Lunan Shan mts, NE of Dechang.

Type material. Hol ot ype: J, ‘ CH, S Sichuan, [province] N Lunan / Shan, NE of Dechang / W slope of Mt. ‘4282’ [ca. 27°27′ N, 102°15′ E] / 2400-2800 m, 29.04.2001 / Belousov & Korolev I. [leg.] [p] // Apteroloma davidis / (Fairmaire) / Nikolaev det. [p]’ ( ZMAS). Par at ypes: 4 JJ 7 ♀♀, same data as holotype (2 JJ 5 ♀♀ ZMAS, 1 J 1 ♀ AFUA, 1 J 1 ♀ JRPC).

Diagnostic description. Measurements of holotype: TBL 5.6 mm, PMW/PML 1.55, PMW/ PBW 1.22, EL/EW 1.16, EW/PMW 1.54.

Body medium-sized, 5.4–5.6 mm (J) and 5.9–6.0 mm ( ♀) in length. Dorsum in mature specimens dark brown; antennae, mouthparts and legs uniformly ferruginous ( Fig. 5 View Figs ). Dorsal surface shiny, with fine transverse microsculpture. Pronotum and elytra with scattered short erect setae.

Pronotum widest in middle; anterior margin weakly emarginate; lateral margins distinctly bordered; weakly explanate; sides flat, only moderately raised and weakly sinuate posteriorly ( Fig. 5 View Figs ); base wide, without impressions. Disc with scattered fine punctures, lateral and posterior areas densely punctate.

Elytra broadly oval. Each elytron with nine regular striae, stria 3 with ca. 65–68 mediumsized punctures; interstriae flat; lateral margin smooth, without serration; epipleural keel narrow. Metathoracic wings fully developed.

Male. Aedeagus evenly rounded with short, straight apex in lateral view ( Fig. 7 View Figs ); sides not broadened sub-apically, regularly tapering to slender tip in dorsal view ( Fig. 9 View Figs ).

Female. Ventrite VIII truncate posteriorly, spiculum ventrale very narrow, truncate anterior margin and distinctly broadened latero-apical margin ( Fig. 11 View Figs ). Ovipositor with transverse valvifer without setae; triangular, heavily sclerotized coxite bearing numerous setae; stylus modified into strongly curved, apically glabrous scraper (as in RŮŽIČKA et al. 2004: 117, Fig. 20 View Figs ).

Differential diagnosis. The new species is very similar in habitus (i.e., oval elytra and dark brown dorsum with paler, unicoloured appendages) to A. davidis (Fairmaire, 1891) , A. jinfo Růžička, Schneider & Háva, 2004 and A. qinlingense Rougemont, 2001 ( Fig. 5 View Figs ) but differs from them by the combination of the following characters: sides of pronotum only weakly sinuate posteriorly (as in A. davidis and A. jinfo ; distinctly sinuate in A. qinlingense ); elytra with medium-sized strial punctures (as in A. davidis ; distinctly larger punctures in A. jinfo and A. qinlingense ) and elytral interstriae anteriorly flat (as in A. davidis and A. qinlingense ; distincly raised anteriorly in A. jinfo ). All four species can be reliably identified using the features of male genitalia: aedeagus slender with a short apex, regularly tapering in dorsal view in A. belousovi sp. nov. ( Figs. 7, 9 View Figs ); with a short apex, sub-apically broadened in dorsal view in A. davidis ( RŮŽIČKA et al. 2004: 117, Figs. 2 View Figs , 6 View Figs ); with an elongate apex and sinuate sides in A. jinfo ( RŮŽIČKA et al. 2004: 117, Figs. 3 View Figs , 7 View Figs ); and slender with an elongate apex, regularly tapering in dorsal view in A. qinlingense ( RŮŽIČKA et al. 2004: 117, Figs. 1 View Figs , 5 View Figs ). Female of A. belousovi sp. nov. differs in the shape of ventrite VIII, which is truncate posteriorly ( Fig. 11 View Figs ), as in A. jinfo , but rounded posteriorly in A. davidis ( RŮŽIČKA et al. 2004: 117, Fig. 9 View Figs ) and narrowly emarginate posteriorly in A. qinlingense ( Fig. 13 View Figs ), and in the spiculum ventrale, which is distinctly broadened latero-apically ( Fig. 11 View Figs ), as in A. davidis and A. qinlingense , but narrower and not broadened latero-apically in A. jinfo ( RŮŽIČKA et al. 2004: 117, Fig. 10 View Figs ).

Etymology. Patronymic, named in honour of Igor Belousov ( St. Petersburg, Russia), specialist in Carabidae and collector of the type series.

Bionomics. The type series was collected in gravel and small stones on banks of a rather large river (I. Belousov, pers. comm.).

Distribution. So far known only from the type locality in China: Sichuan province, situated close to the border with Yunnan province ( Fig. 27 View Fig ).