. Bulletin of the British Museum (Natural History) Entomology. THEREVINE STILETTO-FLIES OF THE ETHIOPIAN REGION 317 The TURNERI-Grovp In this group are placed three species in which the males have abdominal tergites 2-4 distinctly banded and abdomen exclusively whitish haired. It is not clear whether the species form a monophyletic group. The male sex of only two species, turneri and globulicornis is known. The aedeagi of both these species have the dorsal apodeme with a concave distal margin which is neither convexly rounded as in the analis-group, nor has a narrow projection as in the semini
. Bulletin of the British Museum (Natural History) Entomology. THEREVINE STILETTO-FLIES OF THE ETHIOPIAN REGION 317 The TURNERI-Grovp In this group are placed three species in which the males have abdominal tergites 2-4 distinctly banded and abdomen exclusively whitish haired. It is not clear whether the species form a monophyletic group. The male sex of only two species, turneri and globulicornis is known. The aedeagi of both these species have the dorsal apodeme with a concave distal margin which is neither convexly rounded as in the analis-group, nor has a narrow projection as in the seminitida-group. In both species the paraproct continues into a well-marked sclerotization of the intersegmental membrane. Cell R4 is remarkably narrow in all species, 2-4-2-6 times as long as wide at apex. The interspecific variability in tibial chaetotaxy, especially on tx, is very unusual. In turneri the dorsal setae of tx are strong, very numerous and rather decumbent. The single female specimen available of curticornis has a similar arrangement of the tibial setae as in turneri. T. globulicornis has a 'normal' arrangement of the tibial setae, few in number and more erect. The females of this group usually have a broad frons, dulled by tomentum. The third antennal segment is short and constricted basally as in the genus Caenophthalmus. Thereva turneri sp. n. (Text-figs 393-400) Diagnosis. <$. A greyish black species with distinctly banded abdomen which has exclusively whitish hairs. Tibiae unusually strong, and with numerous setae on dorsal surface, also on the pd surface on tl. 9. 399 400 Figs 393-400. Male terminalia of Thereva turneri, holotype. 393, genitalia in lateral view; 394, right gonocoxite in interior view; 395, paraproct; 396, epandrium in dorsal view; 397, aedeagus in lateral view; 398, aedeagus in dorsal view; 399, sternite 8; 400, tergite 8. Scale: 0-5 Please note that these images are extracted from scanned page images that may have been d
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