SCUTELLEROIDEA—DOUGLAS LAKE REGION 53 
to feed upon them and died within a short time. In addition 
to sumach and blueberry, specimens were often taken from 
huckleberry (Gaylussacia baccata) in August. 
At 11:00 a. mM. on August 10, 1919, I found both adults and 
nymphs on the panicles of Rhus glabra, which grows in some 
abundance on the Biological Station grounds; the particular 
plot here observed consisted of about forty plants. Although 
I did not see the nymphs with the beak inserted in the fruit, 
I did note several adults with the beak thus inserted, and in 
the act of sucking. The following table will serve to give some 
idea of the abundance of these bugs on the plants in the plot 
based upon more or less regular intervals of collecting: 
No. adults No. nymphs 
Time taken taken 
11:00 A. M. 5 several 
19:15 A. M. 8 
12:00 M. 2 
12:40 P. M. 2 
1:40 P. M. 3 
2:40 P. M. 1 
5:00 P. M. 2 3 
i200 2, Mi. 1 
Each time that the plot was visited it was inspected very 
carefully for adults, all of which were removed as soon as dis- 
eovered. Apparently the Chlorochroas came in from nearby 
plants and areas to feed on the sumach fruit and, indeed, it. 
seemed that the insects habitually sought these plants. 
The green color of the bugs with the pinkish margins on pro- 
notum, hemelytra and abdomen served to make the insects very 
inconspicuous against the reddish brown panicles and the green 
leaves of the sumach bushes. The bugs were very active on the 
date above mentioned, which was clear and very warm; if the 
collector approached too closely they dodged quickly to the 
opposite side of a panicle or dropped suddenly to the ground 
and ‘‘played dead.’’ 
On the morning of August 13 I took from the same plot of 
sumach bushes ten specimens of C. uhleri, all that I could find; 
and in the afternoon of the same day six more specimens, all 
adults and, curiously enough, all females. In my notes of July 
15, 1919, I find the following statement: ‘‘C. uhleri and E. 
