304 Miss G. Ricardo on the Pangonine 
Walker’s type is evidently the same species as that described 
as atropos by Osten Sacken, who was in doubt as to the 
identity of the two species, owing to Walker’s statement 
“ Chest and abdomen clothed with dark tawny hairs.’ On 
examining the type, I can only see a few such coloured 
hairs on the dorsum of the abdomen and none on the thorax ; 
in the other female they are still less noticeable. 
Chrysops excitans, ?, Walker, Dipt. Saund. pt. 1. p. 72 
(1850) ; List Dipt. pt. v. Suppl. 1, p. 281 (1854) ; Osten 
Sacken, Mem. Boston Soc. Nat. Hist. 1. p. 373 (1876) ; 
id. Cat. (1878) ; Williston, Trans. Kans. Acad. x. p. 132 
(1887). 
Type (female) from Cape Breton ; one female from British 
Columbia, 47.86; two females from Hudson Bay district, 
Albany River, St. Martin’s Falls, 44. 17 (not 47. 14) (Barn- 
ston) ; one female from Nova Scotia, 58.136 (Piffard) ; one 
female from Inverness, Woodcock’s Landing, mouth of the 
River Skeena, British Columbia, 90. 96 (Aeen) ; three females 
from unknown localities. 
The colour of the legs and of the antenne is not quite the 
same in the typeas in the description of this species by Osten 
Sacken, which is otherwise correct so far as the type is con- 
cerned. The first joint of the antenne is wholly red, the 
second almost entirely so, only black at the apex, and the 
third jomt is red at its base, then black. On the middle 
tibise the red is more widely extended, only the apex being 
black. One of the specimens was erroneously placed under 
C. carbonarius, Walker, and several under C. sepulchralis, 
Fabr. 
Chrysops scalaratus, 2? , Bellardi, Ditt. Mess. 1. p. 72, pl. ii. 
fig. 9 (1859) ; Osten Sacken, Cat. (1878). 
? Chrysops lateralis, Wiedem., Auss. zweifl. Ins. i. p. 209 (1828); 
Walker, List Dipt. pt. v. Suppl. 1, p. 200 (1854) ; Osten Sacken, 
Cat. (1878). 
One male from Vera Cruz, Mexico, 54.66 (Sallé) ; two 
females from Honduras, 285 a & 285 6 (Miller) ; one female 
from Chili, 81.56 (Edmonds) ; one male from on or around 
volcano, Orizaba, Mexico, 56.143 (Sallé) ; one female from 
unknown locality, labelled by Walker as ¢rypeta (I cannot 
find any published description of a Chrysops from North 
America under this name). 
I believe the males are those of scalaratus; they only 
differ from the females in having the basal cells of the wing 
