346 
IOWA ACADEMY OF SCIENCE Vo:,. XXVII, 1920 
destroyed. Some wheat fields suffered a total loss while numerous 
Blue grass pastures were eaten to the ground with a serious 
temporary loss. 
Our active field work was begun July 10, on which date several 
Fig. 60. Army worm moth (enlarged). The white spot on 
the wing is a distinguishing character. 
infested regions in Marion county were visited. Adult moths 
were seen flying in the fields with a fair degree of abundance 
and pupae were readily found by digging. Several species of 
parasitic Tachina flies and Braconids also were abundant. About 
one-third of the pupae taken emerged that same day and the others 
which did not contain parasites within a very few days. Both 
species were found in this county, in some cases both in the same 
field. The trip then led to Mahaska and Wapello counties, thence 
to the southwestern part of the state. While an occasional living 
pupa was found for several weeks it came very shortly (by the 
