Lasioglossum (Hemihalictus) quadrinotatulum (Schenck, 1861)

Hylaeus quadrinotatulus Schenck, 1861: 393, ♂. Syntypes: “ Pommern [Poland: Pomorze District] und Schweiz”; lost.

Published data. Chenikalova 2005: 26 (Stavropol Territory).

Material examined. RUSSIA. Karachayevo-Cherkess Republic: 1 ♀, 7 km N of Rozhkao, 43°53′N 40°56′E, 4.VIII.2019, AF .

Distribution. Russia (North Caucasus, east to eastern Siberia); Europe, Turkey, Azerbaijan, North China.

Remarks. A rare species.