Patellapis (Chaetalictus) platti
Creators: name: Timmermann, Kim
name: Kuhlmann, Michael
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Patellapis
Patellapis platti

description: Patellapis (Chaetalictus) platti (Cockerell 1937)   
 Halictus platti Cockerell, 1937: 75–76.   
 Halictus rubrotibialis Cockerell, 1946c: 180. Syn. n.   
(Figs. 81a–e; 82a–d)  
 Diagnosis. The male is similar to that of P. pearstonensis in having 6 very strong bristles on the posterior margin of S4. They differ in the structure of the lower gonostylus, which is simple in P. platti and bifid in P. pearstonensis. The female is similar to that of P. disposita, but P. platti lacks the oily bluish shine on the scutum.   
 Description   
 Female. Bl = 5,3mm. Head. L = 1,7mm; W = 1,8mm. Head about as wide as long (Fig. 81a). Integument black except mandibles and malar area partly reddish-brown. Face predominantly shiny and with loose, yellowish and pallid brownish, erect hairs. Mandibles bidentate. Clypeus and supraclypeal area convex in profile. Clypeus strongly and densely punctate; surface shiny. Clypeoantennal distance 0,3mm. Supraclypeal area with a few well separated punctures; surface finely reticulate. Paraocular area strongly and moderately densely punctate; surface extensively and strongly reticulate. Antennae brownish-black. Mesosoma. L = 1,2mm; W (ITS) = 1,3mm. Integument black. Scutum polished; surface finely reticulate; disc sparsely punctate (i = 3,0–5,0d) (Fig. 81b). Scutellum as illustrated in Fig. 81c. Scutum, scutellum, metanotum, mesepisternum and propodeum with greyish and brownish, erect hairs. Pronotal lobe reddish to yellowish. Basal area of propodeum as illustrated in Fig. 81c; propodeum and marginal region of posterior truncation slightly shiny; surface completely reticulate. Wings. Hyaline. Legs. Integument brownish to yellowishbrown. Vestiture greyish to pallid brownish. Ts moderately strongly serrate, with about 7 small, oblique projections (Fig. 81d). Bp as illustrated in Fig. 81e. Metasoma. L = 3,0mm; W = 1,9mm. Integument reddishbrown; margins translucent. No apical hair bands on metasomal terga. Prepygidial fimbria mostly yellowish.   
 Male. Bl = 4,8–4,9mm. Head. L = 1,4–1,5mm; W = 1,7–1,8mm. Head wider than long (Fig. 82a). Integument black except mandibles, malar area, clypeus and paraocular area partly reddish-brown. Clypeus, supraclypeal area, paraocular area and vertex covered with erect, greyish hairs. Mandibles simple. Antennae brownish. Flagellomeres of normal structure (not knotty). A4 as long as A3. Mesosoma. L = 0,9–1,0mm; W (ITS) = 1,0– 1,1mm. Integument black. Scutum polished; sparsely punctate (i = 2,0d); surface partly reticulate anteriorly (Fig. 82b). Scutellum as illustrated in Fig. 82c. Scutum, scutellum, metanotum, mesepisternum and propodeum with greyish to dark greyish, erect hairs. Basal area of propodeum as illustrated in Fig. 82c; propodeum slightly shiny; surface completely reticulate and sparsely punctate. Marginal region of posterior truncation slightly shiny and extensively reticulate. Wings. Hyaline. Legs. Integument reddish. Vestiture greyish. Metasoma. L = 2,7–2,8mm; W = 1,4–1,5mm. Integument reddish to brownish-black; T1–T2 extensively reddish; T3–T6 extensively brownish to blackish; margins mostly pallid brownish and broadly translucent (Fig. 82d). Apical plate broad; rounded apically. Posterior margin of S4 with a sparse row of 6 very strong, long, curled, erect bristles. Metasomal sterna S5-S6 without dense hair patches (e.g. Fig. 79d). Genitalia. Gonocoxa extensively dull; gonostylus with a dorso-lateral, broad, hyaline projection; projection hairless.   
 Type material (2 specimens). Holotype, female, KwaZulu – Natal: Van Reenen, Drakensberg, 7.iii.1927 (white label), Halictus platti Ckll Type (handwritten white label), Type (red-white label), B.M. TYPE HYM. 17a.778 (white label), S. Africa. R. E. Turner. Brit. Mus. 1927–147 (white label), BMNH; Holotype, male, Halictus rubrotibialis Ckll Type, South Africa, Van Reenen, Drakensberg, 22.–26.i.1927, R. E. Turner, B.M. TYPE HYM. 17a.1194, BMNH.   
 Additional material (3 specimens). 1♀, 2♂. South Africa, Eastern Cape: 1♀, Belmont Valley, Grahamstown, 12.–26.iv.1972, leg. F.W. Gess, AMGS; Free State: 2♂, Van Reenen, 23.–26.i.1927, leg. R. E. Turner; Brit. Mus. 1927–62, BMNH.   
 Distribution (Fig. 87). Few records exist from the Eastern Cape, Free State and KwaZulu–Natal provinces.   
 Floral visitation. Unknown.   
 Seasonal activity (first–last observations). i–iv.
description: Published as part of Timmermann, Kim & Kuhlmann, Michael, 2009, Variable Selection and Inference for Multi-period Forecasting Problems, pp. 1-188 in Zootaxa 2099 on pages 119-121, DOI: 10.17863/cam.5647, http://zenodo.org/record/5311462