Colletes plumuloides KUHLMANN & PROSHCHALYKIN, 2013

Kuhlmann, Michael & Proshchalykin, Maxim Yu., 2013, The bees of the genus Colletes LATREILLE 1802 of Mongolia (Hymenoptera, Apoidea: Colletidae), Beiträge Zur Entomologie = Contributions to Entomology 63 (1), pp. 255-269 : 259

Colletes plumuloides KUHLMANN & PROSHCHALYKIN

sp. n.

Material examined:

( 1 ): Holotype (): Mongolia, Dornogovi Aimag, 28 km SE Chatan-Bulag (E109°30' N43°05'), 3.VIII.2007, JH ( RCMK).

Diagnosis:

Colletes plumuloides belongs to the C. flavicornis speciesgroup and is closely related to C. plumulosus NOSKIE- WICZ. Both species have a dense crest of short white hairs on the dorsal ridge of the apical part of the gonocoxite and the gonostylus ( Fig. 5d ) that is unique among the Palaearctic Colletes . In C. plumuloides S7 ( Fig. 5c ) is of similar shape but only about 2/3 of the size of that of C. plumulosus , the ventral side of the antennal flagellum is orange-brown ( Fig. 5a ) (blackish-brown in C. plumulosus ), malar area shorter, length medially about 1/3 as long as width of mandible base (in C. plumulosus malar area medially about 1/2 as long as width of mandible base) and metasomal tergal hair bands ( Fig. 5b ) slightly narrower than in C. plumulosus .

Description:

Female. Unknown.

Male. Bl = 6.0 mm. Head. Head wider than long. Integument black except apical margin of clypeus and most of mandible dark reddish-brown. Face densely covered with long, yellowish-white, erect hairs. Malar area medially about 1/3 as long as width of mandible base, finely striate. Antenna black, ventrally bright orange-brown ( Fig. 5a ).

Mesosoma. Integument black. Mesoscutal disc impunctate, smooth and shiny. Scutellum almost impunctate, only lateral and apical margins with some small punctures, surface smooth and shiny. Mesoscutum, scutellum, metanotum, mesepisternum and propodeum covered with long, greyish-white erect hairs ( Fig. 5a ). Wings. Slightly yellowish-brown; wing venation and stigma yellowish-brown. Legs. Integument mostly black, basal and apical ends of tibiae and tarsi reddish-brown. Vestiture white. Metasoma. Integument black except apical tergal depressions yellowish translucent ( Fig. 5b ). Tergal hairs are rubbed off in this single specimen so little can be said about pilosity patterns but apical tergal hair bands are probably broad ( Fig. 5b ). Terga densely and finely punctate (i = 0.5–1.0d), between punctures smooth and shiny ( Fig. 5b ). Terminalia. Genitalia and S7 as illustrated ( Figs 5c, d ).

Etymology:

This species is named for its similarity to C. plumulosus .

General distribution:

Only known from the type locality in Mongolia ( Fig. 3 ) .

Floral hosts:

unknown.

Seasonal activity (first–last observations). VIII.

Figures

Fig. 5: Colletes plumuloides sp. n.. a) Specimen in lateral view, b) metasomal terga 1 and 2, c) sternum

Fig. 3: Distribution of Colletes arsenjevi, C. collaris, C. daviesanus, C. dorni, C. edentuloides, C. edentulus, C. emaceatus, C. fodiens, C. gusi, C. mixtus, C. plumuloides, C. popovi andC. pseudocinerascens in Mongolia.White symbols:previous records.Filled symbols: New records.