iQii.] G. RiCAKro : Revision of the species of Tabanus. 185 



Tabanus discrepans, 9 , n. sp. 

 (PI. xiv, fig. 17.) 

 Type $ and another from Ceylon (Yerbury coll.) 



A long narrow species in general appearance allied to the 

 species of the jiimifcr subgroup and more especially to Tabanus 

 indianus, n. sp., but distinguished from them by the wider forehead, 

 parallel in this species, and by' the larger less narrow frontal callus. 

 Abdomen reddish brown with small median whitish spots. Legs 

 and antennae reddish. Palpi yellow. Wings tinged yellowish 

 brown. Length of type 20 mm. the other female 18 mm. 



Face covered with y-ellowish grey tomentum, and with some 

 pale yellow short hairs, browner on cheeks. Beard whitish yellow. 

 Palpi stout, ending in a point, yellow with black pubescence and a 

 few white hairs intermixed. Antennae reddish, duskier at the tip, 

 the first joint pale yellow with black pubescence, third joint of 

 antennae with very slight tooth. Subcallus and forehead covered 

 with darker yellowish brown tomentum, the latter with some 

 black pubescence, parallel, about five times as long as it is broad, 

 the frontal callus red-brown, oblong, not reaching eyes with a short 

 but stout Uneal extension. Thorax dusky brown, pale reddish, 

 brown at sides and on shoulders, dorsum with appressed short 

 yellow hairs, sides with long black pubescence; breast covered 

 with greyish yellow tomentum and with pale yellow pubescence. 

 Scutellum same colour as thorax with some of the appressed 

 yellow hairs on sides, in the centre with black hairs. Abdomen 

 reddish brown with short black pubescence, on the paler segmen- 

 tations some yellowish white hairs extending to the sides and up 

 the lateral borders of segments, the grey tomentose median spots 

 present from second to fifth segment, more or less triangular in 

 shape; under side with wider whitish-haired segmentations, and 

 with the black pubescence. Legs reddish, the coxae covered with 

 greyish tomentum and with whitish pubescence, the fore and hind 

 femora darker, the apices of fore tibiae and all tarsi blackish brown, 

 femora and basal lialf of hind tibiae with yellow ])ubescence, else- 

 where it is 1>lack. 



Wings tinged 3'ellowish brown, the centres of the cells at apex 

 and on posterior border lighter in type, not discernible in the other 

 female, stigma and veins of fore border brown, other \-eins xcllow- 

 ish brown, type alone with rudiment of an appendix. 



Tabanus rufiventris, 9 , Fabr. {nee Macq.). 



'^yst. Antl.. 96 (1805); Wied., Dipt, exot., p. b() (1821) ; id.. 

 Auss. Zweifl. Ins., i, p. 118 (1828). 



Thorax dark, abdomen reddish, wings with a l)lack costal 

 border. Oi t\\Q9,\z(i oi Tabanus bovi nils. Head ashy grey haired, 

 antennae black. Kyes golden; thorax dark, hardly ashy grey 

 striped. Abdomen reddish, with a dorsal stripe of white spots. 



