Patellapis (Chaetalictus) pastiniformis (Cockerell 1939)

Timmermann, Kim & Kuhlmann, Michael, 2009, Variable Selection and Inference for Multi-period Forecasting Problems, Zootaxa 2099, pp. 1-188 : 113-114

Patellapis (Chaetalictus) pastiniformis (Cockerell 1939)

Halictus pastiniformis Cockerell, 1939e: 510–511 .

( Figs. 77a–d )

Diagnosis. The female of P. pastiniformis is similar to those of P. pondoensis , P. pastinella and P. disposita . They can be distinguished from P. pondoensis by having a shorter body length and from P. pastinella by having a finely serrate inner hind tibial spur. The female of P. disposita is characterised by the oily bluish shine on the scutum, that is missing in P. pastiniformis . P. pearstonensis , P. chubbi and P. cinctifera differ from P. pastiniformis in having reddish metasomal terga.

Description

Female. Bl = 5,7mm. Head. L = 1,6mm; W = 1,7mm. Head as long as wide ( Fig. 77a ). Integument black except clypeus and mandibles partly blackish-brown. Face predominantly shiny and with loose, greyish, erect hairs. Mandibles bidentate. Clypeus and supraclypeal area convex in profile. Clypeus strongly and predominantly densely punctate; surface shiny. Clypeoantennal distance 0,2mm. Supraclypeal area with a few small punctures; punctures well separated; surface completely reticulate. Paraocular area moderately strongly and densely punctate; surface predominantly and strongly sculptured; rather dull. Antennae brownish-black. Mesosoma. L = 1,1mm; W (ITS) = 1,2mm. Integument black. Scutum shiny; surface completely reticulate; disc finely and moderately densely punctate (i = 1,5d) ( Fig. 77b ). Scutellum as illustrated in Fig. 77c . Scutum, scutellum, metanotum, mesepisternum and propodeum with greyish, erect hairs. Basal area of propodeum as illustrated in Fig. 77c ; propodeum shiny, with minute well separated punctures; surface completely reticulate. Marginal region of posterior truncation shiny; completely reticulate. Wings. Slightly fuscouse. Legs. Integument brownish-black. Vestiture greyish to brownish. Ts finely serrate, with 5 to 6 small, oblique projections ( Fig. 77d ). Bp slender; angulate apically. Metasoma. L = 3,4mm; W = 1,8mm. Integument blackish-brown except the margins of T pallid brownish and partly translucent. No apical hair bands on T1–T4. Prepygidial fimbria yellowish-brown.

Male. Unknown.

Type material ( 1 specimen). Holotype, female, S. Africa. Natal, Weenen. ii.1925, H.P. Thomasset (white label), Type (red-white label), Halictus pastiniformis Ckll Type (handwritten white label), B.M. TYPE HYM. 17a.856 (white label), Pres.By Imp.Inst.Ent.B.M. 1929–407 (white label), BMNH.

Distribution ( Fig. 80 ). Only known from Weenen, KwaZulu–Natal.

Floral visitation. Unknown.

Seasonal activity (first–last observations). ii.

Figures

FIGURE 77. Patellapis (Ch.) pastiniformis, female: a. Head (scale=0,5mm); b. Scutum (scale=0,5mm); c. Scutellum and propodeum (scale=0,5mm); d. Inner hind tibial spur (scale=100µm).

FIGURE 80. Distributions of P. micheneri, P. pastiniformis and P. pearstonensis.