Hylaeus (Deranchylaeus) izikosalis, Dathe, 2014

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 : 46-47

Hylaeus (Deranchylaeus) izikosalis sp. n.

Figures 90–91

Diagnosis

This is a large, robust species with a smooth clypeal impression. It differs from the species above by its clypeal impression that is not definitely limited above. The male is unknown.

Description

Female. TL 6.0–7.5 (6.26) mm, WL 3.8–4.2 (4.10) mm.

Head. Proportions HL:HW 0.96, UFW:LFW 1.29, outline long trapezoid, vertex expanded. Scapi black; flagella short, black, yellow below. Face with white comma-shaped spots near orbits at level of scapi bases. Foveae faciales prolonged. Clypeus CL:CW 1.40, front third with broad smooth and glossy impression, this not limited above, but midst with a small tubercle; sculpture longitudinally striated, punctation moderate, sparse, slightly shiny. Frons striated below, upward increasingly punctate as wrinkle stripes, punctation strong, dense. Vertex expanded, rounded. Genae and occiput normal, malae prolonged. Labrum convex arched, smooth and shiny, with middle impression; mandibles black.

Mesosoma prolonged, depressed, black. Pilosity sparse, with white short, erect hairs. Bright spots on tegulae. Pronotum black, bulge expanded forward, anterior margin and dorsolateral angles rounded. Mesonotum, scutellum and mesopleurae finely shagreen, shining, punctation strong, close. Legs entirely black, distal tarsal segments brown; wings opaque, venation brown. Propodeum horizontal part short and steep, rounded; medial area not delimited by a carina, basally with weak rugose ridges, phased out distally into a coarse shagreen; terminal area not edged, rounded, punctation strong, subcontiguous, shiny.

Metasoma compact spindle-shaped, black. T1 smooth and shining, punctation strong, dense, depression without punctures; following terga punctate progressively finer; T1 with white lateral fringes, broadly interrupted white ciliary bands on depressions. Fringe of last sternum pale.

Distribution

South Africa.

Type material: 6 ♀

Holotypus: ♀ SOUTH AFRICA. Western Cape: Klaarstroom, Prince Albert, 01.– 31.10.1952, SAMC Expedition lg. [code SAM-HYM B010177].—In coll. Iziko Museum Cape Town.

Paratypes: 5 ♀, same collecting data [code SAM-HYM B010177 4♀; B014791 1♀].—In coll. Iziko Musuem Cape Town, SANC Pretoria, SDEI Müncheberg.

Derivatio nominis

The name is an adjective, dedicated the Iziko Museum Cape Town; this term refers to the language of the indigenous ethnic group of the Xhosa.

Figures

FIGURES 90–91. H. (Deranchylaeus) izikosalis sp. n., female (typus): 90 head in frontal view, 91 surface structure of basal terga.