440 



MAJOR E. E. AUSTEN. 



It may be added that, although the precise origin of the type of T. leucocnematus, 

 Big. (now in the National Collection), is unknown, since Bigot (Mem. Soc. Zool., 

 France, v., p. 657 (1892)) records it merely as " Indes," the specimen may well have 

 been taken in Assam. At any rate, the British Museum (Natural History) possesses 

 a second $ of T. leucocnematus, Big., which was captured at Kolasil, Lushai Hills, 

 Assam, 30.vii.l904, by Captain E. C. Macleod. 



4. Tabanus praematurus, sp. n. (fig. 3). 



5. — Length (one specimen) 16-2 mm. ; width of head, 6 mm. ; width of front at 

 vertex, just under 1 mm., between lower inner angles of eyes, 0-4 mm. ; length 

 of wing, 15 mm. 



Eyes bare, apparently with two {three?) purple hands ; a single narrow, elongate, 

 frontal callus in $ ; dorsum of thorax {scutum) tawny-olive pollinose, front and hind 

 borders {including humeral and post-alar calli) and scutelhmi paler ; abdomen, except 

 first {visible) segment, z&arm blackish-brown {last three segments darker), hind margins 

 of second to fourth tergites inclusive, and of fifth sternite narrowly whitish, and clothed 



Fig. 3. Head of Tabanus praematurus, Austen, sp. n., O ■ a, front view ; b, profile. 



{except middle third in case of fifth sternite) with appressed yellowish or silvery-white 

 hair, second to fourth sternites inclusive with deeper whitish-grey pollinose hind borders, 

 especially towards the sides, clothed with appressed, glistening, silvery-white hair ; 

 -wings w'ith base, costal and basal cells tinged with tawny-olive, elsewhere, tvith exception 

 of u larger or smaller hyaline fleck in almost every cell, suffused with sepia ; legs, except 

 coxae, trochanters, extreme tips of femora and bases of middle femora, uniformly blacktsh- 

 brown or black. 



Head : Subcallus, upper part of sides of face and lower half of front cinnamon- 

 brown pollinose, upper half of front darker (mummy-brown), jowls and lower part 

 of face buff-yellow poUinose, occiput ochraceous-buff pollinose, posterior orbits 

 smoke-grey ; upper part of sides of face clothed with dark brown hair, jowls and 

 occiput clothed with buff-yellow hair, hind margin of occiput sparsely fringed above 

 on each side of front with glistening hair of somewhat deeper tint ; front in $ narrow 



