Villa stenozoides, El-Hawagry, Magdi S. & Greathead, David J., 2006

El-Hawagry, Magdi S. & Greathead, David J., 2006, Review of the genus Villa Lioy (Bombyliidae, Diptera) from Egypt, with descriptions of two new species, Zootaxa 1113, pp. 21-32 : 30-31

Villa stenozoides sp. nov.

This species looks like Villa stenozona Loew in general appearance, but it may be easily differentiated from it in not having any black hairs on the abdomen, and it is without any black tufts at sides of tergites 5–6. Moreover, in the present species the posterior margins of tergites 2–5 have narrow brown bands of scales preceding the white bands that are present on the anterior margins of following tergites.

Holotype ɗ. Medium sized black species with all hair on thorax and abdomen white. Body length: about 8 mm; wing length: about 6 mm. Head. Frons covered with black hairs becoming longer near the antennae, and some silvery white scales at lower sides; upper frons narrow, as wide as or slightly narrower than ocellar tubercle. Face entirely covered with long silvery white scales mixed with sparse black hairs. Occiput covered with silvery white scales at sides and grayish white hairs around the foramen. Antennae black, gray dusted, with long black hairs on scape and pedicel, narrow rod­like part of flagellum brownish. Thorax. Scutum with some small yellowish scales; sides of scutum and scutellum tinged dark brownish; all bristles and hairs whitish. Wings ( Fig. 2 ) hyaline with costal cell, squama, and base tinged whitish; veins pale brown to yellowish; discal cell short, broad; r­m cross­vein placed at basal third opposite the bifurcation of CuA1 and dm­cu, at an angle with the wing margin; patagium dark brown, covered with some grayish and brownish scales; costal comb black; halter yellowish. Legs brownish black with black hairs and spines; tibiae of middle and hind legs covered with some silvery white scales and some large brownish ones. Abdomen. Without black hairs or scale tufts at sides of tergites and posterior margin of anal tergite. Tergites with white scale bands on the posterior margin of 1st tergite and anterior margins of tergites 2–5; posterior margins of tergites 2–5 with narrow brown bands of scales preceding the white bands on the following tergites; tergite 6 covered with scattered white scales; tergite 7 covered with yellowish scales mixed with brownish ones and with a row of large silvery white scales at posterior border; white bands on tergites 1 and 4 more distinct and thicker than the others; some brownish scales lying at anterior corners of tergite 2, and a few scattered on the other tergites. Hypopygium ( Fig.8 ): Aedeagus trifid, longer in relation to the epiphallus than that of the genitalia of related species such as Villa ixion (Fabricius) .

Paratype Ψ. Like male but upper frons wider, about two times as wide as ocellar tubercle.

Material examined. Holotype ɗ. EGYPT: Ezbet Naghl (= Ezbet El­Nakhl), 25.IX.1925 (Efflatoun); Paratypes, 1ɗ, Helwan, 16.X.1926 (Efflatoun) [dissected]; 1Ψ, Helwan, 11.X.1926 (Farag); 1ɗ, 1Ψ, Helwan, 6.X.1926 (Farag); 4ΨΨ, Kharga Oasis, 1.IV.1963 (Hodges). [deposited in CUE]

Other material examined. 4ΨΨ, Fayoum, 23.iv.1943 (Shafik); 1Ψ, Barrage, 16.VI.1924 (Efflatoun) [without head]; 1ɗ, same data [dissected]; 1Ψ, W. Abughanaiem, 27.VIII.1927 (Farag); 1Ψ, Fayoum (Tameyia), 29.VIII.1948 (Str. & Sh.M.); 1ɗ, Abukir, 6.IX.1925 (Tewfik). [deposited in CUE].

Figures

FIGURES 1, 2. Wings: 1. V. efflatouni sp. nov.; 2. V. stenozoides sp. nov.

FIGURES 7, 8. Male genitalia: 7. V. efflatouni sp. nov.: a. lateral view, b. tip of epiphallus; 8. V. stenozoides sp. nov.: a. lateral view, b. tip of epiphallus.