Aphaniosoma seticauda Ebejer, 1998

Ebejer, Martin J., 2023, The genus Aphaniosoma Becker, 1903 (Diptera: Chyromyidae) in the Eastern Mediterranean and Middle East, with descriptions of new species, European Journal of Taxonomy 872, pp. 1-161 : 132

Aphaniosoma seticauda Ebejer, 1998

Fig. 76

Material examined

Other material

EGYPT • 2 ♂, 3 ♀♀; Alexandria, Ras Rashid , beach; 21 Oct. 2003; P. Gatt leg.; PG • 5 ♂♂, 3 ♀♀, preserved in alcohol; same collection data as for preceeding; MJE .

Remarks

This species ( Fig. 76A ) is predominantly yellow with broad brownish grey scutal vittae and marks on the pleura, broadly bordered in yellow. All fronto-orbital setae are short. The abdominal tergites have broad brown transverse bands with clear yellow margins, but the border between the two colours is rather diffuse. Apart from the characters given in the key, it is recognized from the hypopygial features of the male, where the pregonite is usually evident without dissection. It is large and pale ( Fig. 77B ) contrasting with the rest of the darker epandrium and tergite 6. When macerated it shows a deep and narrow posterior incision ( Ebejer 1998: 223, fig. 71).

Distribution

Tunisia ( Ebejer 1998). New record for Egypt.

Figures

Fig. 76. Aphaniosoma seticauda Ebejer, 1998, ♂, paratype (). A. Habitus, lateral view. B. Hypopygium in situ, postero-lateral view.

Fig. 77. Aphaniosoma setigerum Collin, 1949. A–B. ♂, holotype (NHMUK, B.M. 1935–354, bar code 013435847). A. Habitus, lateral view. B. Posterior segments of abdomen showing large tergite 5 (note: artifact dorsally caused by Lepidoptera scale stuck to tergite 3). C. ♂ (SMNHTAU) from Israel, habitus, lateral view.