Patellapis (Chaetalictus) chubbi ( Cockerell 1937 )

Timmermann, Kim & Kuhlmann, Michael, 2009, Variable Selection and Inference for Multi-period Forecasting Problems, Zootaxa 2099, pp. 1-188 : 96-97

Patellapis (Chaetalictus) chubbi ( Cockerell 1937)

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.

Figures

FIGURE 63. Patellapis (Ch.) chubbi, female: a. Head (scale=0,5mm); b. Scutum (scale=0,5mm); c. Scutellum and propodeum (scale=0,5mm); d. Metasomal terga (scale=1mm); e. Body (scale=1mm); f. Inner hind tibial spur (scale=100µm); g. Basitibial plate (scale=100µm).