326 General Notes. [ May, 
that apterous males are found among the Coccidz, and that in all 
cases the males are very important in the determination of 
genera. 
Remedies—If valued shade or honey trees are attacked by 
these insatiate destroyers, they could probably be saved by dis- 
crete pruning—cutting off the infected branches before serious 
injury was done, or by syringing the trees with a solution of 
whale-oil soap—or even common soft-soap would do—just as the 
young lice are leaving the scales. It would be still better to have 
the solution hot. Whitman’s Fountain Pump is admirable for 
making such applications 
Fig. 1 is slightly magnified ; the others are largely magnified. 
The drawings were made from the objects by W. S. ee 
a senior of the Michigan Agricultural College—A. F. Ci 
MOoLTING OF THE Hornep Toan (Phrynosoma Scie sth 
—This well-known species of horned lizard, or horned toad 
as it is more commonly known, is very widely distributed over 
the north-western portion of the United States. It appears espe- 
cially abundant throughout the Bad Lands, and over the dry 
country between the Yellowstone and Musselshell rivers. During 
my visit to those regions with the Yellowstone Expedition ofa. 
1873, about fifty specimens were collected for the purpose 
studying some of their habits. The first were met with in the 
Bad Lands during the first week in July, where a number of 
young were obtained, having probably been born about the mid- 
dle of June, as indicated by their size and condition. After the 
main body of the expedition had crossed the Yellowstone river, 
a temporary camp was established, when quite a number of adult 
specimens were obtained upon which we discovered the first 
signs of molting. Those which had been collected a few days 
before now began to show similar evidences of shedding the skin. 
At first, small dry vesicles made their appearance over the back 
and sides, running along the prions rows of pyramidal scales 
forming the margins of the abdomen. In a day or two the vesi- 
cles would break and seman nite began, which continued over 
a period of about eight or ten days, the cephalic spines and the 
claws being the last to adhere. Immediately after the old skin 
had been removed, the process of which I assisted in several in- 
stances as far as possible, the new surface presented quite a bril- 
liant appearance when closely viewed. The darker markings upon 
the dorsum appeared minutely sprinkled with black and brick red, 
while the lighter portions remained a pure olive of various shades. 
After ret a the intensity of coloration is gradually lost, as 
the skin becomes more ashy or dusky, returning to the natural 
hue which the ecuien bore previous to molting. 
The specimens as far as observed, went through the process of 
molting from three’ to four weeks after the birth of the young. 
Mr. H. W. Henshaw (Surveys west of tooth meridian) has 
