Heterotropus, Loew, 1873

Greathead, David J., 2006, New records of Namibian Bombyliidae (Diptera), with notes on some genera and descriptions of new species, Zootaxa 1149 (1), pp. 1-88 : 10-11

Key to southern African species of Heterotropus

1. Wing with anal cell closed and stalked, discal cell longer than wide; aedeagus trifid; gonocoxa with a dorsal process; spermathecal bulb (if known) cylindrical ................. 2

­ Wing with anal cell open, discal cell no longer than wide; aedeagus bifid; gonocoxa without a dorsal process; spermathecal bulb globular ....................... apertus Greathead

2. Scutum with yellow markings, at least along lateral margins; gonostylus without a median lobe ................................................................................................................... 3

­ Scutum entirely black; gonostylus with a median lobe................................................. 4

3. Head entirely yellow; gonostylus straight and dorsal process of gonocoxa without thorn­like outgrowths ................................................. diamantis Greathead ♀, sp. nov.

­ Head with black markings; gonostylus curled at apex; dorsal process of gonocoxa with thorn­like outgrowths ................................................................................. munroi Bezzi

4. Antennal flagellum yellow; male tarsal claws reduced .........gilvicornis Yeates & Irwin

­ Antennal flagellum black­brown; male tarsal claws normal......................................... 5

5. Length of labium (excluding labellum) equal to length of fore tibia; abdominal terga mostly black­brown with narrow yellow hind margins ................................................ 6

­ Length of labium (excluding labellum) equal to half length of fore tibia; abdominal terga mostly yellow with narrow black basal bands .......... stuckenbergi Yeates & Irwin

6. Male holoptic; head and antenna yellow­brown; gonostylus without a median lobe ..... ..................................................................................... diamantis Greathead ♂, sp. nov.

­ Male with eyes separated by less than width of median ocellus; head and antenna black; gonostylus with a median lobe ........................................ posthos Yeates & Irwin