Hylaeus (Deranchylaeus) lineaticeps (Friese, 1913)

Dathe, Holger H., 2014, Studies on the systematics and taxonomy of the genus Hylaeus F. (8) Revision of the Afrotropic subgenus Hylaeus (Deranchylaeus) Bridwell (Hymenoptera: Anthophila, Colletidae), Zootaxa 3874 (1), pp. 1-84 : 52-53

Hylaeus (Deranchylaeus) lineaticeps (Friese, 1913)

Figures 102–103

Prosopis lineaticeps Friese, 1913a: 582–583 . 1♀, South Africa: Capland. Typus ♀ MNHU Berlin.— Friese 1913b: 573; Alfken 1914: 190–191; Cockerell 1932e: 171–172; Cockerell 1942: 2, 8–9.

Hylaeus (Deranchylaeus) lineaticeps (Friese) : Bridwell 1919: 145–146; Snelling 1985: 8; Rasmussen & Ascher 2008: 65.

Hylaeus lineaticeps (Friese) : Eardley & Urban 2010: 31.

Hylaeus subreditus Cockerell, 1942: 3–4 , 14–15. ♀, South Africa: Cape Province, Sommerset East. Typus ♀ NHM London, no. 17.a.1407; metasoma lacking.— Syn. n.— Eardley & Urban 2010: 36.

Hylaeus (Deranchylaeus) subreditus Cockerell : Snelling 1985: 8.

Diagnosis

The female has a distinct, mostly oval impression on the front of the clypeus (as in the dregei-group). It is characterized by prolonged paraorbital stripes and strong, dense punctation on the T1. The male is unknown.

Characteristic features

Female. TL 5.6–6.6 (5.97) mm, WL 3.7–4.4 (4.10) mm.

Head. Proportions HL:HW 0.93, UFW:LFW 1.58, outline rounded trapezoid. Face with long white stripes at orbits between tentorial pits and foveae; foveae faciales long. Clypeus CL:CW 1.36, with broad impression on front edge, punctation moderate, close. Supraclypeal area comparably flat, above wide, gently connect to frons; frons and vertex with strong, dense to subcontiguous punctation.

Mesosoma. Pilosity sparse, short, white. Tegulae with pale spot. Pronotum black, fairly long angular expanded forward, anterior edge and its dorsolateral angles rounded. Mesonotum, scutellum and mesopleuren matt, punctation moderate and dense. Legs entirely black; wings dimmed, venation dark. Propodeum rounded, without carinae, terminal area only laterally below sharp; medial area with wrinkled net, terminal area finely punctate.

Metasoma compact spindle-shaped, black. T1 with coarse, close punctation, intervals shiny, T2 something finer punctate, following terga with fine transverse rugose sculpture with merging punctures; T1 with narrow white lateral fringes, following terga with white narrow interrupted marginal band on depressions.

Distribution

South Africa.

Specimens examined: 8 ♀ coll. AMG, MNHU, NHML, OLBL, SANC.

SOUTH AFRICA. Eastern Cape: Algoa Bay; Somerset East.— Free State: Tussen-die-Riviere Res. nr. Bethulie, 30.30S 26.12E.— Western Cape: Ashton, Robertson; Greyton, Riviersonderend; Ladismith.

Figures

FIGURES 102–103. H. (Deranchylaeus) lineaticeps (Friese), female (typus): 102 head in frontal view, 103 surface structure of basal terga. Scale 0.5 mm.