Hylaeus (Alfkenylaeus) euphorbiae, Dathe, 2015

Dathe, Holger H., 2015, Studies on the systematics and taxonomy of the genus Hylaeus F. (9) Supplement to the taxonomy and distribution of Afrotropical Hylaeus F. species (Hymenoptera: Anthophila, Colletidae), Beiträge Zur Entomologie = Contributions to Entomology 65 (1), pp. 9-26 : 13-14

Hylaeus (Alfkenylaeus) euphorbiae spec. nov.

Figures 3, 4 , 22

Diagnosis: This new species, of which only males are so far available, is relatively small and has less pronounced sculpture than the hitherto known representatives of the subgenus Hylaeus (Alfkenylaeus) . It differs mainly in that the gonoforcipes are only extended, and do not form gonostyli.

Description: Male. – TL 4.8–5.5 (5.12) mm, WL 3.7–4.5 (4.12) mm.

Head. Proportions HL:HW 0.87–0.94 (0.90), UFW:LFW 1.62–1.66 (1.64), outline rounded trapezoid. Scapus slender, SL:SW 1.62–1.66 (1.64), black above, becoming brownish below, one specimen with yellow spot at tip; flagellum long, yellow, dark above. Mask complete, yellow, lateral markings on orbits far reaching. Foveae faciales short and very narrow. Clypeus CL:CW 1.33–1.41 (1.37), shiny, with moderate, sparse punctation; anterior margin with a row of bristles. Supraclypeal area dorsally with lateral edges sharply bent up, truncate to frons, without transition. Frons and vertex with moderately dense, extensive pilosity. Genae and malar areas narrow, occiput midst with edged posterior margin. Labrum and mandibles brown .

Mesosoma. Shape regular, pilosity distinct, white, moderately long and dense, erect; longer on ventral side. Mesosoma black, except pronotum with two yellow stripes and tegulae with yellow spots. Pronotum narrow, not extended; anterior margin only sharp in middle,

structure of basal terga in dorsal view. – Scale 1 mm.

Figures

Figs 3–4: Hylaeus (Alfkenylaeus) euphorbiae spec. nov., typus male: 3 head in frontal view, 4 surface

Figs 22–25: Male terminalia: metasomal sterna 7 and 8 (S7, S8), genital capsule. – 22 Hylaeus (Alfkenylaeus) euphorbiae spec. nov. – 23 Hylaeus (Cornylaeus) adamauanis spec. nov. – 24 Hylaeus (Deranchylaeus) haladanius spec. nov. – 25 Hylaeus (Pumilaeus) pumilus spec. nov., S7: left ventral view, right dorsal view. – Scale 0.2 mm.