Ischnosoma molle ASSING & SCHÜLKE, 2017

Assing, Volker, 2019, New species and additional records of Ischnosoma from Georgia (Coleoptera, Staphylinidae, Tachyporinae), Linzer biologische Beiträge 51 (2), pp. 773-788 : 774-775

Ischnosoma molle ASSING & SCHÜLKE, 2017 ( Figs 13-14 , 20-22 , 28-29 , Map 1 )

M a t e r i a l e x a m i n e d: GEORGIA: A d j a r a: 1♀, Chakvistavi , 41°40'47''N, 41°52'19''E, 330 m, stream valley in deciduous forest, litter sifted, 17.V.2019, leg. Brachat & Meybohm (cAss) ; 1♀, W Chakvistavi , 41°41'27''N, 41°49'48''E, 150 m, beech forest with rhododendron, litter sifted, 18.V.2019, leg. Brachat & Meybohm (cAss) ; 2♂♂, 1♀, E Chakvistavi , 41°40'34''N, 41°52'30''E, 320 m, rhododenron litter sifted, 20. V.2019, leg. Brachat & Meybohm (cAss) ; 4♂♂, 2♀♀, E Chakvistavi , 41°40'34''N, 41°52'49''E, 360 m, road margin, deciduous forest margin, litter sifted, 20.V.2019, leg. Brachat & Meybohm (cAss) ; 1♂, Meskheti Range , NE Batumi, Mtirala National Park, 41°40'36''N, 41°52'23''E, 300 m, deciduous forest with predominant alder, chestnut, and rhododendron, litter sifted, 18.VII.2019, leg. Assing (cAss) .

C o m m e n t: Based on available evidence, this recently described species is endemic to the extreme west of the Mekheti Range, Adjara region, Southwest Georgia ( Map 1 ). Note that one of the paratypes which was collected further to the east in the Shavsheti

Range in the region to the southwest of Khulo is a female-based record and consequently requires confirmation.

Figures

Map 1: Distributions of the species allied to Ischnosoma solodovnikovi and of I. thoracicum: I. solodovnikovi (white triangles), I. molle (black circles; white circle: doubtful female-based record), I. acre (black triangles), and I thoracicum (white star.

Figs 9-16: Ischnosoma acre (9-12; 9-10: holotype; 11-12: paratype), I. molle (13-14), and I. solodovnikovi (15-16): aedeagus in lateral and in ventral view. Scale bar: 0.2 mm.

Figs 17-25: Ischnosoma acre (17-19), I. molle (20-22), and I. solodovnikovi (23-25): (17, 20, 23) male sternite VII; (18, 21, 24) male sternite VIII; (19, 22, 25) postero-median portion of male sternite VIII. Scale bars: 17-18, 20-21, 23-24: 0.5 mm; 19, 22, 25: 0.2 mm.

Figs 26-31: Ischnosoma acre (26-27), I. molle (28-29), and I. solodovnikovi (30-31): (26, 28, 30) postero-median portion of male sternite VII; (27, 29, 31) close-up of postero-median portion of male sternite VII. Scale bars: 26, 28, 30: 0.2 mm; 27, 29, 31: 0.1 mm.