A new species of Philetus Melander (Diptera: Empididae) from the Yukon Territory, Canada Author Cumming, Jeffrey M. Canadian National Collection of Insects, Agriculture and Agri-Food Canada jeff.cumming@canada.ca Author Brooks, Scott E. Canadian National Collection of Insects, Agriculture and Agri-Food Canada scott.brooks@canada.ca text Zootaxa 2020 2020-01-07 4718 3 447 450 journal article 10.11646/zootaxa.4718.3.12 577b9b02-aced-4d2a-86f5-c0daaebf564d 1175-5326 3751922 90EF5A00-4B9E-493A-B42E-D713BE4499E3 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 FIGURES 1–2. Habitus photograph and collection locality. 1. Philetus kitsi sp. nov. habitus photograph, male holotype. 2. Shrub tundra locality in the Richardson Mountains, Yukon Territory, Canada, where the holotype was collected using a Malaise trap (photograph: J.H. Kits). 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