Patellapis (Chaetalictus) pastina ( Cockerell 1937 )

Timmermann, Kim & Kuhlmann, Michael, 2009, Variable Selection and Inference for Multi-period Forecasting Problems, Zootaxa 2099, pp. 1-188 : 170-171

Patellapis (Chaetalictus) pastina ( Cockerell 1937)

Halictus pastinus Cockerell, 1937: 73 .

( Figs. 122a–g )

Diagnosis. The male is unknown. The female is morphologically characterised by the body length of about 7,5mm, which is unusual in the subgenus Chaetalictus . Further, the female differs from other medium-sized species in having a slender abdomen and the basal area of the propodeum completely reticulate.

Description

Female. Bl = 7,4–7,5mm. General habitus ( Fig. 122e ). Head. L = 2,0mm; W = 2,1–2,2mm. Head slightly wider than long ( Fig. 122a ). Integument black except mandibles and malar area partly reddish-brown. Face shiny and with loose, long, greyish, erect hairs. Mandibles bidentate. Clypeus and supraclypeal area convex in profile. Clypeus strongly and densely punctate; surface shiny. Supraclypeal area sparsely punctate; surface finely chagreened; shiny. Clypeoantennal distance 0,5mm. Paraocular area shiny; strongly and densely punctate; surface extensively sculptured. Antennae blackish-brown. Mesosoma. L = 1,5–1,6mm; W (ITS) = 1,8mm. Integument black; surface with a weak oily bluish shine; disc sparsely punctate (i = 2,5–3,0d); surface finely chagreened (mostly anteriorly) ( Fig. 122b ). Scutellum as illustrated in Fig. 122c . Scutum, scutellum, metanotum, mesepisternum and propodeum with greyish and pallid yellowish, erect hairs. Basal area of propodeum as illustrated in Fig. 122c ; propodeum shiny, finely and completely chagreened. Marginal region of posterior truncation shiny; finely chagreened and reticulate. Wings. Hyaline. Legs. Integument brownish. Vestiture mostly greyish. Ts moderately strongly serrate, with 6–7 small but broad, oblique projections ( Fig. 122f ). Bp as illustrated ( Fig. 122g ). Metasoma. L = 4,0– 4,4mm; W = 2,2–2,4mm. Integument blackishbrown; margins of T pallid brownish to pale and broadly translucent. Metasomal terga without apical hair bands. Prepygidial fimbria mostly yellowish. Discs and marginal zones of metasomal terga T1–T3 as illustrated in Fig. 122d .

Male. Unknown.

Type material ( 2 specimens). Holotype, female, South Africa, KwaZulu–Natal : National Park. 3–15.iii.1932. A. Mackie (white label), Halictus pastinus ♀ Ckll Type (handwritten white label), Type (redwhite label), Pres. By Imp. Inst. Ent. B.M. 1934–223 (white label), B.M. TYPE HYM. 17a.799 (white label), BMNH.

Paratypes: 1♀. South Africa. KwaZulu–Natal : National Park. 3–15.iii.1932. A. Mackie, Halictus pastinus Ckll Cotype (handwritten white label), Pres. by Imp. Inst. Ent. B.M. 1935–492, BMNH .

Additional material (4 specimens). 4♀. South Africa. KwaZulu – Natal : 1♀, Sentinel , 1978, leg. C.D. Eardley, HYMA06927 , SANC ; 1♀, Highmoor , 1978, leg. C.D. Eardley, HYMA06957 , SANC ; Lesotho: 2♀, Mopelistream 40 miles E Maseru, Basutoland, 02.iii.1956, leg. C. Jacot – Guillarmod, SEMC .

Distribution ( Fig. 129 ). Few records exist from the north–eastern part of South Africa (KwaZulu–Natal) and from Lesotho.

Floral visitation. Unknown.

Seasonal activity (first–last observations). iii.

Figures

FIGURE 122. Patellapis (Ch.) pastina, female: a. Head (scale=0,5mm); b. Scutum (scale=0,5mm); c. Scutellum and propodeum (scale=0,5mm); d. Metasomal terga T1-T3 (scale=1mm); e. Body (scale=1mm); f. Inner hind tibial spur (scale=100µm); g. Basitibial plate (scale=100µm).

FIGURE 129. Distributions of P. gruenebergensis, P. ninae, P.pastina, P. paulyi and P. villosicauda.