Afropeza, Sinclair & Shamshev, 2012

Sinclair, Bradley J. & Shamshev, Igor V., 2012, Afropeza, a new South African genus (Diptera: Empidoidea: Brachystomatidae), with description of three new species, African Invertebrates 53 (1), pp. 239-239 : 243

Key to species of the genus Afropeza gen. n.

1 Males ......................................................................................................................2

– Females..................................................................................................................4

2 Male terminalia with epandrial lamellae rounded and expanded laterally, genital capsule rotated 45° to right and overlapping abdomen ( Fig. 10 ). Surstyli and sclerites of segment 8 asymmetrical ...................................................... stuckenbergi sp. n.

– Male terminalia with epandrial lamellae not expanded laterally, genital capsule upright at apex of abdomen, not rotated and overlapping abdomen ( Figs 5 , 7 ). Surstyli and sclerites of segment 8 symmetrical....................................................3

3 Surstylus divided into pair of lobes; posterior lobe expanded apically from QDUURZ EDVH ZLWK ¿QJHU‒OLNH OREH RQ LQQHU IDFH ()LJ. 7). (SDQGULXP URXQGHG ZLWK anterodorsal lobe bearing pair of setae ( Figs 7, 8 ). Cerci cone-shaped with numerous setae ( Fig. 7 ). Tergite 8 slender, only slightly expanded on lateral margins............ .......................................................................................................... silvatica sp. n.

– Surstylus undivided, inner posterior face with ribbed surface ( Fig. 5 ). Epandrium narrow and elongate, lacking anterodorsal lobe. Cerci fused into stout U-shaped process, bearing pair of spine-like apical setae ( Fig. 6 ). Tergite 8 slender, greatly expanded on lateral margins................................................................. pappi sp. n.

4 Postpedicel longer than width of eye ....................................... stuckenbergi sp. n.

– Postpedicel shorter than width of eye....................................................................5

5 Pleura dusted with pruinescence. Length of postpedicel 0.8× width of eye............ .............................................................................................................. pappi sp. n.

– Pleura largely shiny, mostly lacking pruinescence. Length of postpedicel 0.6× width of eye................................................................................................ silvatica sp. n.

Figures

Fig. 10. Afropeza stuckenbergi sp. n., male terminalia, dorsolateral view. Abbreviations: cerc – cercus, ej apod – ejaculatory apodeme, epand – epandrium, goncx apod – gonocoxal apodeme, hypd – hypandrium, ph – phallus, st – sternite,sur (a) – anterior surstylus, sur (p) – posterior surstylus, tg – tergite. Scale bar = 0.1 mm.

Figs 5, 6. Afropeza pappi sp. n., male terminalia: (5) lateral view; (6) cerci, anterior view. Abbreviations: cerc – cercus, ej apod – ejaculatory apodeme,epand – epandrium, goncx apod – gonocoxal apodeme, hypd – hypandrium, pgt – postgonite, ph – phallus, sur – surstylus. Scale bars = 0.1 mm.

Figs 7–9. Afropeza silvatica sp. n., terminalia: (7) male, lateral view; (8) male, anterior view; (9) female, lateral view. Abbreviations: apod – apodeme, cerc – cercus, ej apod – ejaculatory apodeme, epand lb – epandrial lobe, epand – epandrium, goncx apod – gonocoxal apodeme, hypd – hypandrium, pgt – postgonite, ph – phallus, spmth – spermatheca, st – sternite, sur – surstylus, tg – tergite. Scale bars = 0.1 mm.