Tabanus gratus Loew

Abu El-Hassan, Gawhara M. M., Badrawy, Haitham B. M., Fadl, Hassan H. & Mohammad, Salwa K., 2013, A review of the genus Tabanus Linnaeus, 1758 (Diptera: Tabanidae) from Egypt, Zootaxa 3691 (5), pp. 559-576 : 568

Tabanus gratus Loew

( Figs 3 D, 5D)

Tabanus gratus Loew, 1858: 340 .

Tabanus tritaeniatus Laveran, 1908: 253 .

Type locality. “Kaffraria”, South Africa, Eastern Cape.

Diagnosis. Length. (Male) body 11.2–12.5 mm, wing 8.5–9.2 mm; (female) body 9.0– 11.9 mm, wing 8.8–9.0 mm.

Small handsome species; frons in females with sides not parallel; frontal index in female 3.36–3.39; subcallus entirely dusted; R4 without appendix; abdomen greyish with 4 longitudinal brown stripes, the inner margin of the two median stripes expanded on terga 3 and 4.

Local distribution. Coastal Strip, Lower Nile.

Geographical distribution. Afghanistan to South Africa, Egypt, Iran.

Specimens examined. Tisfa, 31.VIII.1924 (1 3) (ASUC); Tisfa, 26.VI.1924 (2 3); Abu Rawash, 26.V.1926 (3 3); Kerdassa, 9.VI.1926 (1 3); Kerdassa, 14.V.1927 (1 3); Manoauria, 22.IX.1926 (1 3); El-Fayoum, Tamiya, 14.V.1950 (1 3, 1 Ƥ) (CUC); Tisfa, 26.VI.1924 (2 3, 4 Ƥ); Tisfa, 18.VIII.1929 (1 Ƥ); Kerdassa, 14.V.1927 (1 3); Kafer Hakim, 27.VIII.1927 (1 3) (ESEC); Ghizeh, 15.VI.1921 (1 3, 1 Ƥ); Tisfa, 16.VI.1924 (4 3, 1 Ƥ); Elmansouria, 10.IX.1924 (1 Ƥ); El-mansouria, 12.X.1927 (1 Ƥ); Abu Raeash, 16.IX.1924 (1 Ƥ); Mansouriah, 12.X.1927 (1 Ƥ); Kafer Hakim, 8.VII.1936 (1 3) (MAC).

Figures

FIGURE 3. Female frons, anterior view. A. T. albifacies Loew. B. T. arenivagus Austen. C. T. autumnalis Linnaeus. D. T. gratus Loew. E. T. leleani Austen (adapted from Chvála et al. 1972). F. T. lunatus Fabricius G. T. mordax Austen. H. T. rupinae Austen. I. T. separatus Efflatoun. J. T. sufis Jaennicke. K. T. taeniola Palisot de Beauvois. L. T. unicinctus Loew (adapted from Loew 1856). Scale line = 1 mm. (L. not scaled).