Philetus

Cumming, Jeffrey M. & Brooks, Scott E., 2020, A new species of Philetus Melander (Diptera: Empididae) from the Yukon Territory, Canada, Zootaxa 4718 (3), pp. 447-450 : 448-449

Key to species of Philetus (males)

1 Terminalia with cercus bifid apically; hypandrium without apical rods; postgonite projected dorsally as broad U-shaped lobe ( Cumming et al. 2016, figs 17–20). Antenna with postpedicel broadly produced apically ( Cumming et al. 2016, fig. 8)..................................................................................... P. schizophorus Melander

- Terminalia with cercus simple, elongate, not bifid apically ( Figs 3, 5 ); hypandrium with hooked-shaped apical rods ( Fig. 4 ); postgonite projected dorsally as wide rounded lobe ( Fig. 4 ). Antenna with postpedicel narrowly produced apically ( Cumming et al. 2016, fig. 7)..................................................................................... 2

2 Terminalia with cercus rounded apically, without pronounced apical ventral hook ( Fig. 3 ); ventral subepandrial lobe with digitiform apex and thumb-like preapical medially-directed process ( Fig. 5 ); medial subepandrial lobe absent; epandrial lobe with posteriorly hooked dorsal process ( Figs 3, 5 ); hypandrium with narrow median apical process ( Figs 3, 4 )..... P. kitsi sp. nov.

- Terminalia with cercus bearing pronounced apical ventral hook; ventral subepandrial lobe with broadly deflexed apex, lacking preapical medially-directed process; medial subepandrial lobe present; epandrial lobe with bifid dorsal process; hypandrium with thick median apical process ( Cumming et al. 2016, figs 13–16).......................... P. memorandus Melander

Figures

FIGURES 3−5. Philetus kitsi sp. nov. male terminalia. 3. Lateral view. 4. Hypandrium and phallus, dorsal view. 5. Epandrium and proctiger, dorsal view. Abbreviations: cerc—cercus; ej apod—ejaculatory apodeme; epand—epandrium; epand lb—epandrial lobe; goncx apod—gonocoxal apodeme; hypd—hypandrium; hypd rd—hypandrial rod; m ap hypd proc—median apical hypandrial process; pgt—postgonite; ph—phallus; v sbepand lb—ventral subepandrial lobe.