Dec., 1904.] 
Taba-ii'lae. 
245 
brown, all the femora, apex of tibiae and anterior tarsi, black, 
remainder of legs red. Length 17 millimeters. Specimens from 
Mission Mountains, Montana, received from Prof. M. J. Elrod, 
and from Laggan, Alberta, collected by Prof. R. C. Osburn. 
Widely distributed in northern United States and Canada. 
Species not Identified. 
Tabanus tetricus Marten. This is colored something like rhom- 
bicus but with red antennas. Described in Canadian Entomol- 
ogist XV, 111. 
Tabanus fuscipalpis Bigot. This description suggests T. 
sequax. Blackish palpi are not found in many species of its 
group. Mem. Soc. Zool. France V, 6S1. 
Tabanus hirtulus Bigot. I do not recognize this species. It 
seems to be colored much like some of the darker specimens of 
sonomensis. The antennas are black with a trace of red at the 
base of the third regment, the subcallus is not denuded and the 
anterior branch of the third vein bears a long stump. Mem. Soc. 
Zool. Fr. V, 041. 
Tabanus maculifer Bigot. Agrees in many respects with 
phaenops but has the subcallus denuded. 1 have never seen a 
specimen of phasnops with this character. Mem. Soc. Zool. Fr. 
V, ()41. 
Tabanus villosulus Bigot. Must resemble the male of Apa- 
tolestes comastes Will. Mem. Soc. Zool. Fr. V, 6S4. 
Diachlorus notatus Bigot. Suggests Silvius pollinosus and 
quadrivittatus. There are some specimens of these species with 
wings such as Bigot describes. Mem. Soc. Zool. Fr. V, ()’23. 
List, Synonymy and Bibliography of Species Treated in This Paper 
PANGONIA. 
dives Williston, Tr. Kan. Acad. Sci. X, 130. From California. 
californica Bigot, Mem. Soc. Zool. Fr. V, OLS. From California, 
fera Williston, Tr. Kan. Acad. Sci. X, 130. From Oregon, Washington 
and British Columbia. 
hera Osten Sacken, West. Dipt. 214. From San Francisco, California, 
incisa Wiedemann, Auss. zweifl. Ins. I, 90. From Ark. Col. N. M., 
Oklahoma. 
incisuralis Say, Jr. Ac. Nat. Sci. Ill, 31; Compl. Writ. I, 7d. 
ruficornis Bigot, ^fem. Soc, Zool. Fr. V, 015. From Califoniia. 
saussurei Bellardi, Sag. Ditt. Mes. I, 49. From southern Arizona and 
Mexico. 
velutina Bigot, Mem. Soc. Zool. Fr. V. 015. From California. 
