Colletes fuscitergus, Zabel & Kuhlmann, 2023

Zabel, Tina & Kuhlmann, Michael, 2023, Taxonomic revision of the southern African Colletes fasciatus species group (Hymenoptera: Colletidae), European Journal of Taxonomy 899, pp. 1-96 : 34-36

Colletes fuscitergus sp. nov.

urn:lsid:zoobank.org:act:EB8ABC0E-B0BB-4BDF-84A3-C6952FDD26D8

Figs 25 , 36

Diagnosis

The male can best be identified by the unique shape of S7 ( Fig. 25G ) and gonostylus ( Fig. 25H ).

Etymology

Named for the brownish metasomal terga.

Material examined

Holotype SOUTH AFRICA – Northern Cape Province • ♂; Namaqualand, Garies ; 30°30′ S, 18°00′ E; Jun. 1930; museum staff leg.; SAMC.

Description

Female

Unknown.

Male

BODY LENGTH. 9 mm.

HEAD. Integument black, antenna brown ventrally. Face with grayish white to white hairs ( Fig. 25B ). Clypeus with very dense, small punctures (<0.2 pd). Malar area long, length about 1.2–1.5 × width of mandibular base. Facial fovea narrow, maximum width about ½ antennal diameter.

MESOSOMA. Integument black, tarsi brownish ( Fig. 25A ). Scutum with long grayish white to white hairs ( Fig. 25C ). Mesosomal sides and legs with white hairs. Disc of scutum with medium-sized, scattered punctures (0.5–1 pd), integument glabrous, surrounded by dense punctation (<0.2 pd). Scutellum and metanotum with long yellowish to yellowish brown hairs, intermixed with few light brown hairs on scutellum. Upper sloping part of propodeal triangle with short, longitudinal carinae. Vertical part superficially shagreened and shiny with lateral 1–2 more or less developed transverse carinae anteriorly. Hind basitarsus not modified ( Fig. 25F ).

METASOMA. Integument brown and terga narrowly translucent posteriorly. T1 densely covered with long, erect yellowish white hairs ( Fig. 25D ). Disc of T2 with concolorous shorter hairs as on T1. Disc of T3–T6 with relatively long, erect dark brown hairs. T1–T5 with narrow white posterior hair bands ( Fig. 25E ). Discs of T1 and T2 with fine and dense (<0.5 pd) punctation, punctures becoming a bit more scattered on posterior tergal depression, interspaces glabrous. S2–S5 with long whitish fringes posteriorly. Discs of sterna covered with relatively long white hairs. S7 ( Fig. 25G ) and gonostylus ( Fig. 25H ) as illustrated.

Distribution

The only record is from Garies ( Fig. 36 ).

Phenology

Only recorded in June.

Figures

Fig. 25. Colletes fuscitergus sp. nov., ♂, holotype (SAMC). A. Habitus, lateral view.B. Head.C. Scutum, dorsal view. D. Metasomal terga 1 and 2, dorsal view. E. Metasoma, dorsal view. F. Hind basitarsus, lateral view. G. Metasomal sternum 7, dorsal view. H. Gonostylus, lateral view.

Fig. 36. Distribution of C. fuscitergus sp. nov., C. genalis Friese, 1909, C. gessi Kuhlmann, 2007, C. infracognitus Cockerell, 1937, C. inornatus Cockerell, 1946 and C. karooensis Kuhlmann, 2007.