Epeolus tarsalis, Morawitz. In, 1874

Astafurova, Yulia V. & Proshchalykin, Maxim Yu., 2021, Review of the Epeolus tarsalis species group (Hymenoptera: Apidae, Epeolus Latreille, 1802), with description of a new species, Zootaxa 5006 (1), pp. 26-36 : 27

The Epeolus tarsalis species group

Diagnosis. Species of the E. tarsalis species group differ from other species groups by the peculiar shape of the elevated supraclypeal area between antennal sockets, where the frontal carina is more or less enlarged laterally in lobes ( Figs 1–3 ). The development of these lobes is different among species of the group: from partially covering insertion of the antennae to not reaching the edges of the antennal sockets.

Figures

FIGURES 1–7. Epeolus melectiformis Yasumatsu, female (1), E. tarsalis Morawitz, female (2, 4, 5); male (6, 7), E. coreanus Yasumatsu, male (3): 1–3—supraclypeal area, frontal, view, 4, 5—hind femora, lateral view; 6, 7—metasoma, dorso-lateral view. Scale bars: 0.3 mm (1–3); 0.5 mm (4–7).