Peringueyomyina barnardi Alexander, 1921

Skibinska, Kornelia, 2016, Nannotanyderinae: a new subfamily of Tanyderidae (Diptera), Palaeontologia Electronica 19 (3), pp. 1-16 : 11-12

Peringueyomyina barnardi Alexander, 1921

Figures 15-16

Remarks. Peringueyomyina is a monotypic genus and the only tanyderid known to occur in South Africa. With a wing length of approximately 10 mm, P. barnardi is the largest species of Nannotanyderinae . This species is unique within extant Tanyderidae in having an elongate rostrum and a hyaline wing membrane with a lesser-developed anal lobe ( Figure 15 ). In the wing vein Sc is longer than most other species in this subfamily, ending opposite about two-thirds the length of R 2+3 ( Figure 16.1 ). As with the fossil member of Nannotanyderinae , Peringueyomyina can be characterized by elongated gonopods ( Figures 15 , 16.2 ). However, in the latter, the number and arrangement of spiniform setae on the gonopods differs from any fossil species.

Keys

For Key to Subfamily and Key to Genera see

Appendix.

Figures

FIGURE 15. Photograph of Peringueyomyina barnardi (ISEZ PAN collection) whole specimen with elongated rostrum in lateral view. Scale equals 1mm.

FIGURE 16. Drawings of Peringueyomyina barnardi (ISEZ PAN collection). 1, wing venation in dorsal view. 2-4, male genitalia, external built in dorsal view (2), aedagal complex in dorsal (3) ventral-lateral (4) views. Scale equals 1 mm.