Philorus

Kang, Zehui & Yang, Ding, 2012, Species of Philorus Kellogg from China with description of a new species (Diptera: Blephariceridae), Zootaxa 3311, pp. 61-67 : 62

Key to species (males) of Philorus from China

1. Antenna with 13 segments ( Fig. 2 ); hind tibia with 1 spur; anterior branch of dorsal lobe of gonostylus not as below...... 2

- Antenna with 15 segments; hind tibia with 2 spurs; anterior branch of dorsal lobe of gonostylus nearly straight, with a row of black spiny bristles at anterior margin ( Kitakami 1937).................................... P. taiwanensis Kitakami

2. Flagellomeres about 1.5–2.0 times as long as wide; cercus with distal margin of each lobe concave medially; dorsal lobe of gonostylus finger-like; ventral lobe of gonostylus bilobate, dorsal portion finger-like, ventral portion L-shaped ( Figs. 4–5 )................................................................................... P. emeishanensis sp. nov.

- Flagellomeres about 2.8–3.2 times as long as wide; cercus with distal margin of each lobe rounded medially; dorsal lobe of gonostylus with blunt setose medial projection at base, apex of lobe slender; ventral lobe of gonostylus not bilobate, with base narrow, apex wide and round ( Figs. 9–10 ).................................................. P. levanidovae Zwick

Figures

FIGURES 1 – 3. Philorus emeishanensis sp. nov. (male). 1. Habitus of male, lateral view; 2. Head of male; 3: Wing. Scale bar: 1 = 1.0 mm; 2 = 0.5 mm; 3 = 1.0 mm.

FIGURES 4 – 5. Philorus emeishanensis sp. nov. (male). 4: Genitalia, dorsal view. 5: Genitalia, ventral view. Scale bar: 4 – 5 = 0.1 mm. Abbreviations: c = cercus; dg = dorsal lobe of gonostylus; ep = epandrium; gs = gonostylus; gx = gonocoxite; hyd = hypandrium; hyp = hypoproct; ig = inner gonocoxal lobe; vg = ventral lobe of gonostylus.

FIGURES 9 – 10. Philorus levanidovae Zwick (male). 9: Genitalia, dorsal view. 10: Genitalia, ventral view. Scale bar: 9 – 10 = 0.1 mm.