Lasioglossum euxinicum Ebmer, 1972

Lasioglossum euxinicum Ebmer, 1972: 233, ♀ (holotype: ♀, Sevastopol, Crimea).

Lasioglossum alievi Pesenko, 1986: 128, fig. 14, ♀ (holotype: ♀, Azerbaijan: Istisu; ZISP), examined, syn. nov.

Published data.

Ebmer 1978: 38; 1981: 115 (Ordubad, Azerbaijan); Pesenko 1986, as L. alievi; Aliyev et al. 2007: 254 (Azerbaijan).

Material examined.

Holotype of Lasioglossum alievi Pesenko.

Distribution.

Caucasus: Azerbaijan. – Morocco, Italy, Russia (Crimea), Iran (Pesenko 1986).

Taxonomical note.

Pesenko (1986: 128) described Lasioglossum alievi from Azerbaijan and noted that this species has a black (without metallic lustre) body. However, the holotype of L. alievi has a weak metallic lustre on the head and mesoscutum (see figs 59 c, d in Astafurova and Proshchalykin 2018: 54). A. W. Ebmer examined the type in 1988 and labelled the specimen as Lasioglossum euxinicum ssp. euxinicum, but did not publish the synonymy. Although Pesenko (2007) considered this species to be valid, we have supported Ebmer’s opinion and Lasioglossum alievi Pesenko, 1986 is established here as a junior synonym for L. euxinicum Ebmer, 1972 .