of the Family Tabanide. 303 
badly-preserved specimen of C. celer, O. S. It is impossible 
to speak with certainty owing to its condition. 
Type (female) from unknown locality. 
Chrysops carbonarius, 9, Walker, List Dipt. i, p. 203 
(1848). : 
C. carbonarius, 2, var. y, Walker, J. ¢. 
C. niger, 2, Walker (nec Macq.), J. ¢. p. 202. 
C. provocans, 9, Walker, Dipt. Saund. pt. i. p. 73 (1850). 
? C. ater, 9, Macq., Dipt. Exot. Suppl. 4, p. 40 (1850). 
C. fugar, 2, Osten Sacken, Mem. Boston Soc. Nat. Hist. ii. p. 3875 
(1876) ; id. Cat. (1878); Willistcn, Trans, Kans. Acad. x. p. 162 
(1887). ; 
Type of carbonarius, 2, Wlk., from Nova Scotia (Red- 
man). 
Type of carbonarius, 9, Wlk., var. y, from Nova Scotia 
(Redman). 
Type of niger, 2, Wlk. (nec Macq.), from New York, 
44, 90 (Doubleday). 
Type of provocans, ¢, Wlk., from Cape Breton; one 
female from New York, 44. 90 (Foster); one female from 
Nova Scotia; one female from Canada, 74. 84 (Walker) ; 
one female from Calgary, N.W.T. Canada, 1894, 1901. 65 
(Ricardo). 
Walker’s type carbonarius and the variety y both answer 
exactly to the description of C. fugax as Osten Sacken 
suggests; his name must therefore give place to that of 
Walker, but his description should be referred to. 'The type 
of the C. niger, Macq., redescribed by Walker, is also a 
specimen of C. carbonarius, Wlk., and not of C. sordidus, 
Osten Sacken, as the latter suggests; he was evidently led to 
think so by Walker’s description of the abdomen as having 
tawny spots; there is no trace of tawny colour on the 
abdomen of this type. The type provocans, W\k., is nothing 
but a specimen of C. carbonarius, Wlk., differing slightly 
from the other species in having the fourth posterior cell 
wholly filled out with the dark colouring, so that the trans- 
verse band almost touches the hind border. Respecting the 
var. 8 of carbonarius, W1k., see notice under C. niger, Macq. 
Chrysops divisus, 2? , Walker, List Dipt. pt. 1. p. 204 (1848). 
Chrysops atropos, 9, Osten Sacken, Mem. Boston Soe. Nat. Hist. il. 
p. 372 (1876) ; id. Cat. (1878). 
Type (female) from Florida, 40. 3. 19. 17 (Doubleday), 
and another female from same locality. 
