iQii.J G. RiCARDO : Revisio7i of the species of Tahsinns. 223 



wholly reddish brown (not merely somewhat reddish brown at the 

 sides as Schiner describes), by its whitish or yellowish beard and 

 lighter palpi which even when darker have grey tomentum, appear- 

 ing greyish, but on examining a long series of specimens of both 

 species, I found that some with the reddish brown abdomen had 

 yellowish beards but the palpi dark, or blackish beards and the palpi 

 rather reddish. I can find no other specific difference to divide 

 the species, audit appears doubtful whether they can be maintained 

 as two distinct species, both in shape of palpi, antennae and frontal 

 callosities are almost identical, and both occur in the same localities 

 but Walker's species is not so numerous in the collection. Van der 

 Wulp was mistaken in thinking Tabanus pnsillus, Macq., had a 

 black shining subcallus, his species has no relation to the Macquart 

 type which I examined in the Paris ^Museum. 



Tabanus ceylonicus, 9 , vSchiner. 



(PI. xiv, fig. 22.) 



Reise Novara Diptera, p. 93 (1868). 



Tabaims nitidulus, 5 , Bigot, Mem. vSoc. Zool. France, v, 

 p. 679 (1892). 



Bigot tj^pe from Java and other females in Brit. AIus. coll. 

 from Trincomalee, Ceylon (Yerburj^), with note from donor ' ' Rare " , 

 from Binding, Siani (Ridley) ; from Singapore, Straits Settlement 

 (Falshaw), with note from donor * ' Found in Singapore and Federa- 

 ted Malay vStates, bites cattle and horses, found in town and jungle; 

 very rarely seen and not so common as other Tabanidae ' ' ; from 

 Tapali Road, Perak, Federated Malay States (Durham) ; and a long 

 series from Bidor, S. Perak (Robinson and Annandale coll.) ; 

 from Kuala Lumpur (Stanton coll.) ; from Kajoe-Tanan, Sumatra, 

 Dr. Hagen, " on cow." One male from Trincomalee, Hot Wells, 

 Ceylon • Yerbury). 



Shining black, very bare, the thorax at the sides and especiall}'' 

 the triangle at base of wings as well as the abdomen at the sides 

 somewhat brown-red, on the sides of breast just under the root of 

 the wings is a rustv brown small spot ; the under side of abdomen 

 is likewise but not very distinctly reddish brown, the short hairs on 

 the sides of abdomen black. Head black, the face in certain lights 

 dark cinnamon-brown, the forehead narrow, somewhat broader 

 behind, the shining black callosity just above the antennae large, 

 occupying the whole space between the eyes, be^'ond it a rather 

 long square less shining spot, from which three tine shining stripes 

 reach to the vertex, the space between it dull bluish grey. 

 Antennae bright red-yellow, the third joint black at the apex, the 

 first joint cylindrical, not wider above, the second short with no spine 

 above, both bare, the third hardly concave above so that the angle 

 projects but little, the joints ringed as in other genuine Tabanus 

 species. Proboscis black with long sucking discs. Palpi black- 

 brown, little shorter than the proboscis, broad at the base, ending 

 in a point, somewhat curved; the scanty beard black. Legs black. 



