Leioproctus (Excolletes) impatellatus Michener, 1965

Maynard, Glynn Vivian, 2013, Revision of Goniocolletes and seven Australian subgenera of Leioproctus (Hymenoptera: Apoidea: Colletidae), and description of new taxa, Zootaxa 3715 (1), pp. 1-114 : 68-69

Leioproctus (Excolletes) impatellatus Michener, 1965

Leioproctus (Excolletes) impatellatus * Michener 1965: 251

Types

Leioproctus (Excolletes) impatellatus — NEW SOUTH WALES: holotype ♀, 95 miles (152k) N Tibooburra, 3.xi.1949, S.J. Paramonov ( ANIC) ; " allotype " (= paratype), ♂, same data as holotype ( ANIC) , paratype, 1♂, Clifton Downs, 31.x.1949, S.J. Paramonov ( ANIC) .

The species name on the labels of the types is incorrect—it is written as "apatellus" not "impatellatus" (the published name). Many more specimens are now known.

Additional material examined: 30♀, 2♂ Queensland: 15km W Windorah. Northern Territory: 34km E Curtin Springs.

Months collected: September, October, November, December.

Floral visitations: Proteaceae : Grevillea ; Myrtaceae : Corymbia terminalia .

Female — Length ca 7mm; integument dark brown to black with white hair; Small, dark, non-metallic bees; antennal bases on lower half of the face. Head —Vertex rounded above ocelli; facial foveae vaguely indicated by change in surface texture, usually totally obscured by hair; frons flat with dense, small strong punctures and polished interspaces; inner eye margins converging at ocellar level and at malar area; antennal sockets on lower half of face depressed; frontal line carinate on lower half; scape not reaching median ocellus; flagellar segments all the same length; supraclypeal area not raised, medially glabrous; epistomal suture and subantennal suture absent, anterior tentorial pit only vaguely indicated; central half of clypeus sparsely haired and punctate ventral margin with 1–2 long, thick hairs; labrum polished convex subrectangular area; malar space absent; mandibles with large apical tooth and distinct pollex; apical three segments of maxillary palps extending beyond the apex of extended glossa; apex of glossa truncate, with long apical fringe; basal labial palp segment flattened, apical 2 segments shorter than basal 2 segments, not extending beyond the apex of extended glossa; gena narrower than eye width when head viewed laterally. Mesosoma —Scutum and scutellum polished with a few sparse punctures and laterally with short, dense marginal fringe; metanotum very narrow, convex, polished with a few, sparse hairs; propodeal triangle polished, basal area twice length of metanotum and longer than vertical area; area immediately lateral to propodeal triangle polished with a few sparse hairs; lateral margins of propodeal triangle foveolate. Fore wing with large pterostigma, more than 0.5 x length of costal margin of marginal cell; apex of marginal cell strongly divergent from costa for at least 0.2 x length of the costal marginal cell; first recurrent vein enters second submarginal cell towards the apex; wings almost hairless in veined area; membrane clear; jugal lobe of hind wing reaching beyond cu-a. Legs with paler brown apical segments; fore tibia spur with apex of malus almost as long as velum and a few fine teeth at base of spine; tarsomeres with long, fine, simple hairs dorsally; midtibial spur very long, fine and poorly sclerotised; hind basitarsus with long, posterior, simple fringe; hind basitibial plate lacking marginal carina, covered by pale brown hair; hind basitibial plate absent, hair of dorsal surface of tibial scopa almost palmate with 4, long, branches from median shaft of the hair; inner hind tibial spur without large teeth, ciliate; claws with or without an inner ramus. Metasoma —Integument brown T1–4 with dense, small, weak punctures with minutely granular interspaces; T2–3 with dense, apical band of hair broadly interrupted medially; T5 completely covered by a dense, pale brown prepygidial fimbria; pygidial plate constricted just above the base to a narrow, somewhat spatulate plate, bluntly rounded apically; T6 with dense pale yellow hair either side of the plate; S2 with broad apical band of moderate length hair that is weakly branched; S3–6 with narrow, apical band of simple hair. Male — As for female except as follows: Length ca 5mm. Head— All flagellar segments with length about equal to width; dorsal tooth broadly separated from apical tooth (resembling a can opener). Mesosoma —Hind bastibial plate small, but clearly defined; all claws with an inner ramus. Metasoma— Apical bands absent; covered in mostly short appressed hair; apical margins vaguely translucent; T7 denudate; apical lobes of S7 broadly joined; S8 strongly protuberant; sterna covered in fine, sparse hair; for S7–8 and genitalia see figs 115–117.