Hylaeus (Cornylaeus) SNELLING, 1985

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 : 18

Key to species of the subgenus Hylaeus (Cornylaeus) SNELLING

Modified from SNELLING (1985: 10).

1 Female, antennae 12-segmented ....................................................................................................................................... 2

– Male, antennae 13-segmented ........................................................................................................................................... 4

2 Clypeus with median stripe; supraclypeal area maculate .............................................................................................. 3

– Clypeus and supraclypeal area black ............................................................................................... proteae COCKERELL

3 Scapi, legs and base of T1 black, calli and axillae without white spot ........................................... aterrimus (FRIESE)

– Scapi, legs and base of T1 ferruginous, calli and axillae white ................................................ adamauanis spec. nov.

4 Scapi more or less spherically extended, black, shiny; axillae and T1 black ............................................................... 5

– Scapi slender, black and more or less lightened brownish, few glossy; axillae white, base of T1 ferruginous ........... .......................................................................................................................................................... adamauanis spec. nov.

5 Clypeus with longitudinal stripe; basitibiae with basal pale mark; T3 often with lateral tubercles; S3 tuberculate or not; scapi longer than broad ............................................................................................................... aterrimus (FRIESE)

– Clypeus black or with a minute preapical median spot; basitibiae wholly dark; T3 always without lateral tubercles; S3 with a large median swelling; scapi rotund, as broad as long ............................................... proteae (COCKERELL)