Edenophorus, Smith, 1969

Sinclair, Bradley J., 2002, Revision of the South African endemic genus Edenophorus Smith (Diptera: Empididae), African Invertebrates 43, pp. 109-122 : 113

Key to species of Edenophorus

1 Cell dm present, crossvein dm-cu present ( Fig. 4 ) ............................................... 2

– Cell dm absent, crossvein dm-cu absent ( Fig. 5 ) .................................................. 4

2 Postpronotal lobe with 3 stout anterior bristles and 1 posterior bristle; length of proboscis at least 1.5 times height of head ( Fig. 2 ) ......................... spinosus sp. n

– Postpronotal lobe with 1 anterior and 1 posterior bristle; length of proboscis slightly longer to less than height of head ( Fig. 1 ) ............................................................ 3

3 Proboscis less than height of head; basal 2 antennal segments yellow, contrasting strongly with dark postpedicel ( Fig. 1 ) ............................................ knysna Smith

– Proboscis more than height of head; basal 2 antennal segments slightly paler than dark postpedicel .................................................................................. irwini sp. n.

4 Legs dark ....................................................................................... nigricans sp. n.

– Legs pale ............................................................................................................... 5

5 Antenna yellow, except for dark apex of postpedicel and style ..... hiemalis sp. n.

– Antenna dark......................................................................................................... 6

6 M 1 strongly arched towards wing margin, divergent from R 4+5; male terminalia held horizontally, such that the cerci are positioned dorsally ( Fig. 9 ) .......... simplex sp. n.

– M 1 gently arched towards wing margin, not divergent from R 4+5; male terminalia held upright, such that the cerci are positioned anteriorly ( Fig. 10 ) .... stuckenbergi sp. n.

Figures

Figs 2–7. Edenophorus characters. 2. E. spinosus sp. n., head. 3. E. hiemalis sp. n., antenna. 4. E. knysna Smith, wing. 5. E. hiemalis sp. n., wing. 6–7. E. irwini sp. n., male terminalia. 6. Lateral view. 7. Posterior view. Scale bar = 0.1 mm, except Figs 2, 4, 5, where scale bar = 0.5 mm. [Abbreviations: cerc = cercus; ej apod = ejaculatory apodeme; epand = epandrium; epand lb = epandrial lobe; goncx apod = gonocoxal apodeme; pgt = postgonite; ph = phallus; sp ch = sperm chamber.]

Fig. 1. Habitus photograph of Edenophorus kynsna Smith, female (Storms River Village).

Figs 8–10. Edenophorus male terminalia, lateral view. 8. E. hiemalis sp. n. 9. E. simplex sp. n. 10. E. stuckenbergi sp. n. Sclerites of segment 8 marked by dashed outline (not shown in Fig. 9). Scale bar = 0.1 mm. [Abbreviations: cerc = cercus; ej apod = ejaculatory apodeme; epand = epandrium; epand lb = epandrial lobe; goncx apod = gonocoxal apodeme; pgt = postgonite; ph = phallus; sp ch = sperm chamber.]