280 E. E. AUSTEN — TABANID^ COLLECTED IN 



short, apjDressed, ivMtisJi hairs, forming transverse hands ivhich ai'e deeper at 

 the sides ; coloration of icings and legs as in ^ . 



S . — Head : median portion ot* frontal triangle clothed with erect black 

 hairs; median portion of face strongly tumid, hemispherical when viewed 

 from above, forming a single facial callus, which is shining black above and 

 blackish (yellowish pollinose) below ; lower portion of sides of swollen part 

 of face clothed with yellow hairs, a few dark browm hairs at bottom of sides 

 of face, jowls and basi-occipital region thickly clothed with straw-yellow hair ; 

 eyes rather large and tumid ; pal^yi and proboscis clove-brown ; first joint of 

 antennce clove-brown, second joint dull vandyke-brown, both joints clothed 

 with blackish hair (third joint missing in case of type). Thorax: ground- 

 colour black, clothed with sepia-coloured pollen, and on dorsum with fine, 

 erect, black hair ; a narrow, black, median stripe on dorsum, running from 

 front margin to prsescutellar furrow, and expanding slightly in front of latter ; 

 a somewhat less distinct, narrow, admedian, blackish stripe on each side of 

 median stripe on dorsum, midway between median stripe and lateral margin ; 

 pleurse, pectus, and area on sides of dorsum immediately behind humeral 

 calli clothed with ochreous hair ; a horizontal ridge of thickset, bLickish hair 

 on each side, running from humeral callus to above base of wing ; no tuft or 

 ridge of bright yellowish hair above base of wing or on postalar callus ; 

 scutellum clothed with black hair, and having a dull, clove-brown, transverse 

 area above, adjoining its anterior margin but not extending to the sides. 

 Abdomen : black blotch on dorsum of first segment somewhat quadrate, 

 narrowing posteriorly, and extending to hind margin ; blotch on second seg- 

 ment resting on front margin, narrowing posteriorly about middle of segment, 

 and not reaching hind margin ; blotch on third segment smaller, irregular in 

 outline, and not reaching either front or hind margin ; blotch on fourth 

 segment occupying about one third of width of segment, extending from 

 front to hind margin, and narrowing somewhat posteriorly ; posterior half of 

 dorsum of fourth and fifth segments yellowish pollinose, dorsum of sixth seg- 

 ment entirely yellowish pollinose ; black blotches and sides (except posterior 

 angles) of second and third segments clothed with black hair, remainder of 

 dorsum clothed with bright chrome-yellow hair ; venter ochraceous, clothed 

 with short, chrome-yellow hair ; fifth and following segments clove-brown, 

 pollinose. Squamce mummy- brown. Halteres dark sepia-coloured. Legs 

 clothed entirely with black hair, except on under side of first and on lower 

 distal angles of second and third joints of front tarsi, where the hair is 

 ochraceous rufous : as in case of ^ of Diatomineura ( Corizoneiira) distincta, 

 Ricardo, tips of first and second joints of front tarsi are remarkably prolonged 

 above, so that distal extremities of these joints, viewed from the side, are very 

 oblique ; tip of second joint fringed above with longer black hair ; tip of 

 third joint also somewhat prolonged above, though to a less extent. 



$ . — Head : vertex and sides of front clothed with short black hair ; 



