Colletes kazakhus Kuhlmann & Proshchalykin, sp. nov.

Colletes kazakhus Kuhlmann & Proshchalykin, sp. nov.

(Figs 6 a–d)

Diagnosis. The characteristic shape of S7 of C. kazakhus with the dense fringe of short hairs along its apical and lateral margins (Fig. 6 c) is unique and unmistakable.

Description. Male. Bl = 7.0 mm. Head. Head slightly wider than long. Integument black except mandible dark reddish-brown. Face densely covered with long white, erect hairs. Malar area medially about 1.5x as long as width of mandible base, finely striate, matt and sparsely covered with short erect hairs (Fig. 6 a). Antenna black, flagellum ventrally yellowish-brown. Mesosoma. Integument black. Mesoscutal disc smooth and shiny between punctures; disc very sparsely punctate (i = 3–5d) with small punctures. Mesoscutellum almost completely impunctate, with dense punctation on apical margin, surface smooth and shiny. Mesoscutum, mesoscutellum, metanotum, mesepisternum and propodeum covered with long, greyish-white erect hairs (Fig. 6 a). Wings. Translucent; wing venation light yellow. Legs. Integument black to dark reddish-brown; apical and basal parts of tibiae and tarsi yellowish-brown. Vestiture greyish-white. Metasoma. Integument black except depressed apical tergal margins yellowish translucent (Fig. 6 b). Terga densely covered with short appressed, yellowish-white hairs; T1 and disc of T2 additionally with abundant long erect hairs of the same colour; apical tergal hair bands narrow (Fig. 6 b). Terga apically distinctly depressed. Terga with dense and fine punctation (i = 0.5–1d), smooth and shiny between punctures (Fig. 6 b). Terminalia. Genitalia and S7 as illustrated in Figs 4 c–d.

Female. Unknown.

Type material (3 specimens). Holotype, male, Kazakhstan: Zhar-Kol' Lake [67°20'E 50°25'N], 21.VII.1951, leg. V. Tobias [ZISP]. Paratypes: 2 ♂, same dates and locality as holotype [ZISP / RCMK].

Etymology. The species name refers to Kazakhstan where it was collected.

General distribution. Only known from the type locality in Kazakhstan.

Floral hosts. Unknown.