41. Epeolus tarsalis Morawitz, 1873

(Figs 58, 59, 81)

Epeolus tarsalis Morawitz, 1873: 182–183, ♂, (lectotype, ♂, designated by Astafurova & Proshchalykin 2021b: 23, Russia, Dagestan, Derbent; ZISP).

Epeolus praeustus Pérez, 1884: 324–326, ♀, (lectotype: ♀, designated by Le Divelec 2021: 18, France, Eaux-Bonnes; MNHN). Synonymized by Warncke 1986: 60.

? Epeolus sibiricus Radoszkowski, 1887: 295, ♀, ♂ (syntypes: ♀♀, ♂♂, Russia, Vladivostok; ZMHB or OLBL (see Astafurova & Proshchalykin 2021a: 34).

Epeolus rozenburgensis Lith, 1949: 105–112, ♀, (holotype: ♀, Netherlands, Hook of Holland; NHR). Synonymized by Warncke 1986: 60.

Epeolus himukanus Hirashima, 1955: 40–41, ♂, fig. 1, (holotype: ♂, Japan, Kyushu, Hyuga Province, Funaishi-Okawachi; KUFJ). Synonymized by Astafurova & Proshchalykin 2021a: 32.

Epeolus tarsalis ssp. tirolensis Lith, 1956: 38, ♀, ♂, fig. 20, (holotype: ♀, Italy, South-Tirol, St. Pauls; NMW). Synonymized by Warncke 1986: 61.

Other notable publications. Bischoff 1930: 6 (descriptive note); Pittioni 1945: 128–147 ( Epeolus tarsalis, E. praeustus, E. sibiricus; key, re-description, variation, figures); Lith 1956: 35–39 (subspecies, variation, figures); Hirashima & Tadauchi 1979: 122 ( E. tarsalis ssp. himukanus, figure); Mitai & Tadauchi 2009: 71–74 ( Epeolus tarsalis ssp. himukanus, description female, figures); Scheuchl 2000: 143, 146 (key); Mitai in Tadauchi & Murao 2014: 411 ( Epeolus tarsalis ssp. himukanus, descriptive note, figures); Bogusch & Hadrava 2018: 42, 43, 55, 56 (key, diagnosis, figures); Bogusch 2019: 268, 269 (diagnosis, figures); Le Divelec 2021: 18–21 (notes on synonymy; figures of Epeolus praeustus lectotype); Astafurova & Proshchalykin 2021a: 32–34 (key, variation, figures).

Host (s). Colletes halophilus Verhoeff, C. collaris Dours (Pérez 1883; Pittioni 1945; Lith 1949).

Distribution. Europe, Russia, Kazakhstan (East Kazakhstan Region), Mongolia, Korean Peninsula, Japan (Honshu, Kyushu) (Astafurova & Proshchalykin 2023).