Lasioglossum (Hemihalictus) convexiusculum (Schenck, 1853)
Hylaeus convexiusculus Schenck, 1853: 166, ♂. Neotype: ♂, Germany: Mombach bei Mainz; designated by Ebmer (1975: 239); SGNF.
Published data. No records from North Caucasus.
Material examined. RUSSIA. Dagestan Republic: 1 ♀, Maskinda, 41°25′N 47°51′E, 4. VI.2019, MP, VL ; 1 ♀, Tsudakhar, 42°19′N 47°09′E, 28. V.2022, AF ; 3 ♀, idem, 15. VI.2023, MP; 1 ♀, Khotoch, 42°24′N 46°57′E, 17. VI.2023, MP ; 1 ♀, near Maydanskoye, 42°36′07″N, 46°58′13″E, 19.VII.2023, MP .
Distribution. Russia (*North Caucasus, south of the European part east to Bashkir Republic); Middle and southern Europe, Lebanon, Turkey, Azerbaijan, Iran.
Remarks. A rare species, in steppe areas.