Colletes khoisanorum, 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 : 46-51

Colletes khoisanorum sp. nov.

urn:lsid:zoobank.org:act:DCB1CA2B-B2F5-4C59-8317-CAE4A4D61A85

Figs 37 , 45

Diagnosis

The female can be separated from that of all other species with a normal scopa by the combination of the following characters: apical hair band of T2 about ¼ width of disc ( Fig. 37D–E ), malar area elongate (about width of mandibular base), facial fovea narrow (about ⅔ width of antennal flagellum), on metanotum no dark brown hairs intermixed.

Etymology

Dedicated to the Khoisan ethnic group who lived, among others, in the region where this species was found.

Material examined

Holotype SOUTH AFRICA – Western Cape Province • ♀; Pakhuis Pass ; 32°08′ S, 19°02′ E; 7 Sep. 1987; C.D. Eardley leg.; SAMC.

Paratypes SOUTH AFRICA – Western Cape Province • 1 ♀; Clanwilliam Dist., Biedouw Valley ; 32°08′ S, 19°14′ E; 5–7 Sep. 1987; C.D. Eardley leg.; CMK • 1 ♀; S of Lamberts Bay; 32°06′ S, 18°18′ E; 7–9 Oct. 1999; M. Halada leg.; CMK .

Additional material

SOUTH AFRICA – Northern Cape Province • 1 ♀; Concordia , 4 km N; 29°30′ S, 17°56′ E; 14 Sep. 2007; T. L. Griswold leg.; labelled as “ Colletes fasciatus group 8”; BLCU .

Description

Female

BODY LENGTH. 9 mm.

HEAD. Integument black. Face with short, grayish to yellowish white hairs ( Fig. 37B ), with long dark brown hairs on vertex and along inner eye margins. Clypeus with dense, small punctation (0.2–0.5 pd), slightly elongate, shiny between punctures ( Fig. 37B ). Malar area elongate, about width of mandibular base. Facial fovea narrow, maximum width about ⅔ × antennal diameter.

MESOSMOA. Integument black, legs brownish ( Fig. 37A ). Scutum with relatively long, yellowish to grayish white hairs, intermixed with numerous longer dark brown hairs ( Fig. 37C ). Mesosomal sides and legs with yellowish to grayish white hairs with some brownish hairs intermixed on mesepisternum and on legs. Disc of scutum with medium-sized, very scattered punctures (2–4 pd), integument glabrous, surrounded by dense, small (<0.5 pd) punctation ( Fig. 37C ). Scutellum and metanotum with relatively long, yellowish brown hairs, with longer dark brown hairs intermixed on scutellum. Upper sloping part of propodeal triangle with short, longitudinal carinae. Vertical part glabrous. Scopa dorsal brown, ventrally yellowish white ( Fig. 37F ). Mid femora with little brush of hairs basally.

METASOMA. Integument black, terga narrowly yellowish translucent posteriorly. T1–T3 with very slight bluish shine. T1 sparsely covered with relatively long, erect yellowish white hairs ( Fig. 37D ). Disc of T2 with shorter erect hairs with same color as on T1. Discs of T2–T5 with successively longer, short, erect blackish hairs. T1–T4 with very narrow, white posterior tergal hair bands ( Fig. 37E ). Discs of T1 with fine, dense punctation (0.5–1 pd), punctures becoming slightly finer, denser and shallower on posterior tergal depression ( Fig. 37D ). Disc of T2 with fine, dense (<0.5 pd) punctation; interspaces glabrous. S2–S5 without apical hair fringes. Discs of sterna loosely covered with relatively long, yellowish white, apically directed hairs.

Male

Unknown.

Distribution

From the Springbok area in the north down south to the vicinity of Clanwilliam ( Fig. 45 ).

Phenology

Found from September to October.

Figures

Fig. 37. Colletes khoisanorum sp. nov., ♀, paratype (CMK). A. Habitus, lateral view. B. Head. C. Scutum, dorsal view. D. Metasomal terga 1 and 2, dorsal view. E. Metasoma, dorsal view. F. Hind tibia, lateral view.

Fig. 45. Distribution of C. khoisanorum sp. nov., C. knersvlaktei Kuhlmann, 2007, C. kogelbergensis sp. nov., C. latefasciatus Cockerell, 1946, C. laticaudus Cockerell, 1946 and C. littoralis sp. nov.