Aphaniosoma impudens 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 : 79

Aphaniosoma impudens Ebejer, 1998

Figs 42–43

Material examined

Paratype

TURKEY • 1 ♂; Denizli, Aci Gol marsh; 4 Jul. 1997; M.J. Ebejer leg.; NMWC.

Remarks

A species of a predominantly dark brownish-black thorax and abdomen ( Fig. 42A, C ). The frons has dark frontal setulae uniform length ( Fig. 42B ). In both sexes of A. impudens , the basal flagellomere is usually dark brown. It is an easy species to recognize in the male because of the large, dark and broad surstylus that is always visible without dissection ( Fig. 43 ). This structure is similar to the surstylus of A. lamellatum Collin, 1949 , which is longer, yellow and has an irregular outline ( Fig. 50C ), and similar to that of A. platystylus Ebejer, 2008 , which is also yellow but shorter and broader ( Fig. 71B ) than that in A. lamellatum . The thorax and abdomen of A. lamellatum and A. platystylus are much less dark, generally having grey or brown scutal vittae and much more yellow on the pleura as well as broader yellow hind margins on the abdominal tergites. Both these species have pale yellowish setae and setulae.

Distribution

Turkey ( Ebejer 1998). New record for Israel.

Figures

Fig. 42. Aphaniosoma impudens Ebejer, 1998, ♂ (NMWC). A. Habitus, lateral view. B. Head, frontal view. C. Head and thorax, dorsal view.

Fig. 43. Aphaniosoma impudens Ebejer, 1998, ♂ (NMWC), hypopygium in situ. A. Lateral view. B. Posterior view.

Fig. 50. Aphaniosoma lamellatum Collin, 1949, ♂ (SMNHTAU). A. Habitus, lateral view. B. Head, lateral view. C. Hypopygium in situ, posterior view.

Fig. 71. Aphaniosoma platystylus Ebejer, 2008, ♂, paratype (MJE). A. Habitus, lateral view. B. Hypopygium in situ, posterior view.