Halictus chubbi Cockerell, 1937: 50–51.

(Figs. 63a–g)

Diagnosis. The male is unknown. The female is closely related to that of P. pearstonensis. Both can be distinguished by the shape of the head, which is slightly longer than wide in P. chubbi elongateand slightly wider than long in P. pearstonensis. The female of P. cinctifera differs from P. chubbi in having the supraclypeal area strongly and completely reticulate. In P. chubbi this area is only sculptured marginally.

Description

Female. Bl = 6,1–6,5mm. General habitus (Fig. 63e). Head. L = 1,9–2,0mm; W = 1,8–1,9mm. Head slightly longer than wide; face elongate (Fig. 63a). Integument black except mandibles sometimes partly reddish-brown. Face shiny and with loose, greyish and pallid brownish, erect hairs. Mandibles bidentate. Clypeus and supraclypeal area convex in profile. Clypeus strongly and densely punctate; surface shiny. Clypeoantennal distance 0,4mm. Supraclypeal area sparsely punctate; surface shiny and often marginally sculptured. Paraocular area densely punctate; surface shiny and partly to extensively sculptured. Antennae mostly brownish-black. Mesosoma. L = 1,3–1,4mm; W (ITS) = 1,4–1,5mm. Integument black. Scutum shiny; surface completely sculptured; sculptation stronger anteriorly than posteriorly; disc finely chagreened; disc sparsely punctate (i = 1,5d) (Fig. 63b). Scutellum as illustrated in Fig. 63c. Scutum, scutellum, metanotum, mesepisternum and propodeum with greyish to pallid brownish, erect hairs. Basal area of propodeum as illustrated in Fig. 63c; propodeum and marginal region of posterior truncation shiny; completely sculptured; propodeum with small punctures. Wings. Hyaline (sometimes slightly fuscouse). Legs. Integument brownishblack. Vestiture dark greyish to pallid brownish. Ts coarsely serrate; with 4 long, oblique projections (Fig. 63f). Bp as illustrated (Fig. 63g). Metasoma. L = 3,2–3,3mm; W = 2,0– 2,1mm. Integument reddish except the margins of T usually pallid reddish; T1 usually blackish anteriorly; T4–T5 often partly brownish to blackish; margins of T extensively translucent. Apical hair bands absent. Prepygidial fimbria mostly brownish. Metasomal terga as illustrated in Fig. 63d.

Male. Unknown.

Type material (1 specimen). Holotype, female, Natal: National Park. 3–15.iii.1932. A. Mackie (white label), Type (red-white label), B.M. TYPE HYM. 17a.2655 (white label), Halictus chubbi Ckll Type (white label), Brit. Mus. 1939–198 (white label), BMNH.

Additional material (18 specimens). 18♀. South Africa, Western Cape: 1♀, Kommetjie, 22.x.1972, leg. J.G. Rozen, R. McGinley, and C. Thompson, AMNH; Namibia: 16♀, Swakopmund (Swakop Rivier), 28.xi.1994, leg. M. Kuhlmann, KTPC; 1♀, Swakopmund, 21.xii.1977, SANC.

Distribution (Fig. 64). Records exist from the Western Cape Province of South Africa and Swakopmund in Namibia.

Floral visitation. Unknown.

Seasonal activity (first–last observations). iii–xii.