SCUTELLEROIDEA—DOUGLAS LAKE REGION 63 
the latter part of July and all of August it may usually be 
taken in low, more or less swampy areas; oftentimes it is to be 
found in such areas which have been burned over some months 
previously and have since been permitted to grow up in weeds 
_ and grass. 
My earliest record for an adult in the field is July 24, when 
I secured these forms as well as nymphs from balsam poplar 
(Populus balsamifera). One specimen in my collection was 
taken in beach drift July 17. As with P. maculiventris I have 
on numerous trips taken this form on willows growing in low 
places. On one occasion I took a specimen from white cedar 
(Thuja occidentalis) growing along the east shore of Douglas 
Lake. Often grassy areas among the aspens will yield a number 
of these bugs. 
During the season of 1920 several adults and nymphs were 
captured on August 9 in the low, swampy, burned-over areas 
surrounding Smith’s Bog. No other Podisus was taken in this 
situation. 
This bug is to be distinguished from its congeners by the 
form, which is broader than usual behind the middle, by the 
blunt, rounded humeri and by the lack of a dusky longitudinal 
vitta on the wing membrane. Length, 9.0—11.0 mm. 
HYPOTHETICAL LIST 
I have added the following hypothetical list of species simply 
to indicate to the prospective student of the group the desir- 
ability of being on the lookout for them in the Douglas Lake 
region. Those species are here included which, although not at 
present represented in our collections, would seem from what 
is already known of their distribution, likely to be met with in 
the region. Possibly further collecting extending over a period 
of years will reveal at least some of the forms mentioned be- 
low; also, perhaps, other species than the ones here listed may 
be added. 
Family Cydnide 
Subfamily Thyreocorine 
Thyreocoris lateralis (Fabr.) Has been recorded from Mich- 
igan. 
