Pseudorhyncomyia

Rognes, Knut, 2013, A new species in the genus Pseudorhyncomyia Peris, 1952 and the identity of P. deserticola Zumpt and Argo, 1978 (Diptera, Rhiniidae), Zootaxa 3736 (3), pp. 249-264 : 257

Key to species of Pseudorhyncomyia

1. Wing cell r4+5 petiolate ( Fig. 8 ). Vein M with a very shallow curve ( Fig. 2 ). Parafacial and anterior half of genal dilation bright waxy yellow without piliferous dots ( Figs. 3–4 ). Black spot in lower part of parafacial much smaller than black spot on gena ( Fig. 1 ). Facial membrane without tomentum ( Fig. 3 ). Lower facial margin projecting forward slightly beyond a vertical line through antennal pedicel in profile view; without microtomentum on anterodorsal surface ( Fig. 3 ). Yellow area dorsally on each side of base of abdomen affecting T1+2 and T3 ( Fig. 2 ). White setae usually rather thick and short, sometimes yellowish distally ( Figs. 1, 2 , 4 , 12 )................................................. Pseudorhyncomyia aethiopica sp. nov.

– Wing cell r4+5 open ( Fig. 15 ). Vein M angulate ( Fig. 15 ). Parafacial and anterior half of genal dilation with white microtomentum over yellow ground colour and with distinct piliferous dots ( Figs. 17–20 ). Black spot in lower half of parafacial larger than black spot in anterior half of gena ( Figs. 17–20 ). Facial membrane with greyish-white tomentum ( Figs. 17, 18 ). Lower facial margin projecting forward far beyond a vertical line through antennal pedicel in profile view, with a triangular area of white microtrichosity on anterodorsal surface ( Fig. 22 ). Yellow area dorsally on each side of base of abdomen affecting T1+2 only ( Fig. 15 ). White setae thin and slender, not yellowish distally................... Pseudorhyncomyia braunsi (Villeneuve)

Figures

FIGURES 3 – 9. Pseudorhyncomyia aethiopica sp. nov. (from holotype in NMSA). 3. Head, anterior view. 4. Head, left lateral view. 5. Head, dorsal view. 6. Right suprasquamal ridge, red arrow points to bundle of white setulae. 7. Original labels on holotype. 8. Apex of wing. 9. Area around meron and posterior thoracic spiracle on left side, red arrow points to white meral setae.

FIGURES 1 – 2. Pseudorhyncomyia aethiopica sp. nov. (from holotype in NMSA). 1. Habitus, left lateral view. 2. Habitus, dorsal view.

FIGURES 10 – 13. Pseudorhyncomyia aethiopica sp. nov. (from holotype in NMSA). 10. Genitalia, from slide 61. 11. Labels on slide 61. 12. ST 5, in situ. 13. Type locality (courtesy of Sarah Gess).

FIGURES 14 – 16. Pseudorhyncomyia braunsi (Villeneuve) (from female in NMSA). 14. Habitus, left lateral view. 15. Habitus, dorsal view. 16. Abdominal tip. The reddish outgrowths on T 5 are fungi of the order Laboulbeniales, so far unidentified as to species.

FIGURES 17 – 22. Pseudorhyncomyia braunsi (Villeneuve) (17, 19, 21 from male in BMNH “ … Graaf Reinet … ”; 18, 20, 22 from female in NMSA). 17 – 18. Head anterior view. 19 – 20. Head, left lateral view. 21 – 22. Head, dorsal view.