Oxyceroides, Yang, Zai-Hua, Rozkošný, Rudolf & Ya, Mao-Fa, 2015

Yang, Zai-Hua, Rozkošný, Rudolf & Ya, Mao-Fa, 2015, A new genus and three new species of tribe Oxycerini (Diptera: Stratiomyidae) from Oriental region, Zootaxa 4057 (1) : -

Key to the known species of Oxyceroides gen. nov.

1. Eyes touching, males.................................................................................. 2

- Eyes separated by a broad frons, females.................................................................. 4

2. Scutellar spines shorter than scutellum ( Figs 1–2 , 16); gonostylus bicuspid (24–25).................. O. sinica sp. nov. ♂

- Scutellar spines longer than scutellum (Figs 5, 26, 28); gonostylus with another shape, never bicuspid ( Figs 25 , 32 )....... 3

3. Last flagellomere longer than penultimate one ( Fig. 10 ); gonostylus bilobate, lobes of phallic complex broad in apical third, distal projections of reaching the apical margin of lateral lobes ( Fig. 13 ).......................... O. gracilis sp. nov. ♂

- Last flagellomere about as long as penultimate one ( Fig. 29 ); gonostylus simple, turned inwardly and sharp apically, phallic complex narrow in distal third and only trifid, parameral sheath not projected distally ( Fig. 32 ).......... O. tangi sp. nov. ♂

4. Scutellar spines longer than scutellum in middle (Fig. 6), whitish lateral stripes along inner eye margin exceeding the insertion of antennae, frons without longitudinal middle groove, frontal hair patch not at the base of antennae (Fig. 4)................................................................................................. O. gracilis sp. nov. ♀

- Scutellar spines shorter than scutellum in middle (Fig. 17), whitish lateral stripes along inner eyes margin reaching at most the level of antennal insertion, frons with longitudinal middle groove, frontal hair patch at the base of antennae (Fig. 15)............................................................................................ O. sinica sp. nov. ♀

Figures

FIGURES 1 – 2. Oxyceroides sinica sp. nov., male. Photo by Z. H. Yang.

FIGURES 20 – 25. Oxyceroides sinica sp. nov. male paratype. 20. Antennae. 21. Epandrium, proctiger and cerci, dorsal view. 22. Phallic complex, lateral view. 23. Phallic complex, dorsal view. 24. Genital capsule and phallic complex, dorsal view. 25. Genital capsule and phallic complex, ventral view.

FIGURES 26 – 32. Oxyceroides tangi sp. nov., male holotype. 26. Habitus, dorsal view. 27. Head, frontal view. 28. Habitus, lateral view. 29. Antennae. 30. Epandrium, proctiger and cerci, dorsal view. 31. Phallic complex, lateral view. 32. Genital capsule and phallic complex, dorsal view.

FIGURES 9 – 13. Oxyceroides gracilis sp. nov. male paratype. 9. Wing. 10. Antennae. 11. Epandrium, proctiger and cerci, dorsal view. 12. Phallic complex, lateral view. 13. Genital capsule and phallic complex complex, dorsal view.