Ischnosoma major (LUZE, 1901)

Assing, Volker & Schülke, Michael, 2017, On the Ischnosoma fauna of Georgia (Coleoptera: Staphylinidae: Tachyporinae), Beiträge Zur Entomologie = Contributions to Entomology (Beitr. Entomol.) 67 (2), pp. 195-206 : 198-199

Ischnosoma major (LUZE, 1901)

( Map 2 )

Type material examined: Lectotype  [dissected prior to present study]: “Kaukas, Leder, Helenendorf. / major m. det. Luze / c. Eppelsh. Steind. d. / Typus / Lectotypus  Mycetoporus major Luze , des. M. Kocian 1994 / Ischnosoma major Luze [sic], M. Kocian det. 94” ( NHMW). Paralectotypes 1 : “Kaukasus, Helenendorf. / major m. det. Luze / Typus / Paralectotypus  Mycetoporus major Luze , des. M. Kocian 1994 / Ischnosoma major Luze, M. Kocian det. 94” ( NHMW); 1 : “Kaukasus, Helenendorf. / major m. det. Luze / ex coll. Luze / Typus Mycetoporus major Luze / Paralectotypus  Mycetopo- rus major Luze , des. M. Kocian 1994 / Ischnosoma major

Luze, M. Kocian det. 94” ( NHMW).

Additional material examined: Georgia: Mtskheta- Mtianeti : 4 , Stepanzminda, 42°40'N, 44°37'E, 2120 m, 20.VII.2015, leg. Brachat & Meybohm (cAss, cSch) , 1 , Sno valley , 42°35'N, 44°45'E, 2210 m, 21.VII.2015, leg. Brachat & Meybohm (cAss) ; 1  [dissected prior to present study], Kazbeg, 1879, leg. Leder ( NHMW) .

Identification doubtful: 1 , Kvemo Kartli, Algeti National Park , W Manglisi, 41°42'N, 44°18'E, 1210 m, 11.VII.2015, leg. Brachat & Meybohm (cAss) .

Comment: Ischnosoma major was originally described from the type locality “Helenendorf” [= Göygöl] in Azerbaijan and subsequently reported also from Teberda in the Northwest Caucasus ( KOCIAN 1997). SCHÜLKE & SMETANA (2015), however, list this species only from Georgia.

A revision of the type material and an additional male from Kazbeg in the collections of NHMW revealed that, from what can be seen of the male sexual characters, they are conspecific with the males from Mtskheta-Mtianeti listed above. However, the revised distribution ( Map 2 ) suggests that both the type localiy and the record from Teberda are doubtful.

Figures

Map 2: Distributions of species of the Ischnosoma spelaeum group in the Caucasus region, based on revised and reliable records: I. campbelli (black diamonds); I. major (white diamonds); I. molle (black circles); I. solodovnikovi (white circles). White square: doubtful locality “Helenendorf” (today Göygöl).