94 SUCKING-LICE. 
is simply indicated by a line enclosing a still hungry parasite. 
As the dogs infested with such ticks generally drop them 
in and near their sleeping places, these become soon badly 

Fig. 63.— Tick from Pocket- Fig. 64.—Tick from Pocket-go- 
gopher, adult. Enlarged. Original. pher, young. Enlarged. Original. 
invaded with the small and hungry ticks, sometimes called 
‘“‘seed-ticks,’’ andin this case they greatly torment the animals 
in the vicinity of such breeding places. A thorough and re- 
peated spraying with kerosene oil will kill these pests. The 
ticks were also found upon horses and other mammals, and 
even upon a rattlesnake. 
Many other species occur in Minnesota. Some are quite 
small, as the one upon the pocket-gopher illustrated in figs. 
63 and 64, which shows the adult and the young six-legged 
larva. 
All the parasites described thus far are not true insects, 
differing from them by the possession of eight legs when ma- 
ture, by never possessing any wings, and by numerous other 
characters not necessary to mention in this place. 
F. SUCKING-LICE. 
(Pedicult.) 
This family of insects includes a number of unsavory par- 
asites that infest man and quadrupeds. Though those at- 
tacking man are not usually mentioned in polite society it is 
sometimes not only important to describe them, but even 
necessary to give remedies to reduce their numbers. Of course 
the time has passed when insects of this or of asimilar charac- 
