1913] 
Graenicher, Wisconsin D ipt era. 
173 
Douglas Co., the Nemakagon river in Burnett Co., Washington Co. 
and Milwaukee Co. 
C. sackeni Hine 3 . Type locality; Sandusky, Ohio. I have come 
across this species in the dune region at Two Rivers, Manitowoc Co., 
Wis., as also in the dune region in Lake Co., Ill., north of Waukegan. 
All of the specimens on hand agree with the description, except that 
in one of them from Illinois the apical spot is hardly wider than the 
marginal cell. 
C. striatus Osten-Sacken. One of our most common species of 
Chrysops. Solon Springs and the Copper Mine dam in Douglas Co.; 
the Nemakagon river and the Yellow river in Burnett Co.; Waupaca; 
Two Rivers in Manitowoc Co.; Cedar Lake in Washington Co.; Army 
Lake in Walworth Co., and Dane Co. 
C. univittatus Macquart. This species, which according to Prof. 
Hine is common in Ohio, seems to be one of the rarer" ones with us. 
In our collection there are only twoi specimens from the state, both 
from the Yellow river in Burnett Co. 
C. vittatus Wiedemann. This is, like C. striatus, a very common 
species in Wisconsin, and has been collected at the following local¬ 
ities ; Solon Springs, Gordon and the St. Croix dam in Douglas Co.; 
the Nemakagon river, the Yellow river, and Randall in Burnett Co.; 
Fountain City in Buffalo Co.; Oostburg in Sheboygan Co.; Cedar 
Lake in Washington Co.; Army Lake in Walworth Co., and Waukesha 
Co. 
Pangonia. 
P. rasa Loew. The original description was based on material 
collected in Wisconsin. The only specimen from this state seen by the 
writer is a male taken at Milwaukee. 
Tabanus. 
T. affinis Kirby. There are 18 specimens in the collection of the 
Public Museum of Milwaukee from the following localities in the 
state: Solon Springs in Douglas Co.; the Yellow river in Burnett Co.; 
the Apostle Islands in Lake Superior, Ashland Co.; Divide in Vilas 
Co., and Two Rivers in Manitowoc Co. I have also seen 13 specimens 
from Tenderfoot Lake in Vilas Co., collected by Prof. Wm. S. Marshall. 
The largest of these reaches a length of about 19 mm, while the 
smallest specimen (from the Yellow river) is hardly 13 mm long. 
This is as small as any of our specimens of the closely related T. 
cpistatus (the next species considered), although, as a rule, affinis is 
the larger of the two. They differ in the form of the palpi, which are 
long and slender in affinis, short and robust in epistatus. 
3) James S. Hine. Tabanidae of Ohio. Bull. Ohio St. Univ. Series 7 
No. 19 pp. 3-57, plates 2 (May 1903). 
