1929] 
Diptera of Labrador 
133 
BlBIONIDiE 
Bibio Geoff roy 
B. inaequalis Loew $ 2 Hopedale (Packard). Rama 1899, 
(Stecker and Sornborger). Cape Charles July 29 and 
30 (Allen). 
Bibio bryanti sp. nov. 
$ Head, antennae and palpi black, pile of the eyes long 
and brown. Thorax black, shining with long black pile. Ab- 
domen black, whitish pile. Legs reddish, with yellowish 
hairs, coxae and knees black, the inner spur of the front 
tibiae about one-half the length of the outer one, the pos- 
terior tibiae and metatarsi enlarged, the latter about as long 
as the second and third joint combined. Wings hyaline, the 
costa, stigma and first and second veins brown. Halteres 
dark brown. Length 8 mm. Nain, Aug. 18 (Bryant). Rama, 
Aug. 24 (Sornborger). Holotype and paratypes in the Mu- 
seum of Comparative Zoology. 
It resembles B. variabilis Loew, but the lighter colored 
femora and enlarged metatarsi readily separates it. From 
B. fumipennis Walk, it is distinguished by its light colored 
wings and veins and the noticeably thicker tibise and meta- 
tarsi. 
Bibio labradorensis sp. nov. 
$ Head, antennae and palpi black, the pile on the eyes 
brown. Thorax black, shining, pile yellowish. Abdomen black 
pile yellow. Femora black, tibiae and tarsi yellow, the latter 
very short, the posterior tibiae as large as the femora and 
posterior metatarsi about one-half the diameter of the 
tibia, the second joint of the tarsus also noticeably enlarged. 
Wings hyaline, the anterior veins and stigma light yellow. 
Halteres dark brown. Length 5.5 mm. Two specimens. Nain, 
Aug. 18, 1908 (Bryant) . 
This species resembles a small B. variabilis Loew, but 
differs in having thickened metatarsi and obsolete stigma. 
Holotype and paratype in the Musem of Comparative 
Zoology. 
