-193- 
Iowa 
Mi ssouri 
Nebraska 
Kansas 
found a few scattering pods of M. difforcr.tialis Thos. and of 
either M. femur- rub rum DeG. or M. mexicanus in which no hatch- 
ing has occurred, but these species are scarce. (June 20): 
Adult of C. pellucida and first adult of M. bivittatus . 
C. J. Drake (June 22): The infestation is very heavy in 
western Iowa. Although numerous and extremely heavy rains 
have destroyed many young hoppers, the population in some 
fields runs as high as 50 to 500 per square yard. In one small 
field of oats in Pottawattamie County, A. D. vforthington, Ex- 
tension Entomologist, and the County Agent, estimated the popu- 
lation to average around 2,000 per square yard. The first 
adults of the 2-stri-ped grasshopper were observed in barley 
fields near Sioux City, June 21. A few adults of M. mexicanus 
have been observed in Story, Harrison, and Pottawattamie Coun- 
ties. M. diff erentialis is the most common and abundant spe- 
cies, but hatching is not complete. The number of first-instar 
nymphs of this s-oecies is increasing every day in the field. 
Poisoned-bran mash is being scattered by many farmers in west- 
era and central Iowa. Several species of blister beetles are 
just beginning to appear in large numbers in Iowa. 
L. Haseman (June 20): Grasshoppers are very abundant in 
some districts but June rains are favoring crops. 
M. H. Sv.'enlr (June 1 to 20): During the month the grasshopper 
situation has developed principally along three lines: (l) 
the continued hatching of eggs, (2) a great reduction in the 
grasshopper population of the northern and northeastern heavily 
infested counties by heavy rains and floods, and (3) an increase 
in the grasshopper population in parts of western and especial- 
ly southwestern Nebraska. By June 1 eggs of the two- striped 
grasshopper had largely hatched on the upland south slopes, 
but those on the north slopes, and those in the lower ground, 
the latter chiefly of the differential grasshopper, were only 
about 60 per cent hatched. Hatching has continued through June 
to date, and at present probably not more than 10 to 15 per cent 
of the eggs of both species together, on the average, remain 
unhatched. The largest number of unhatched eggs is to be found 
in the western counties. Heavy beating rains during the nights 
of May 24 and 25 over much of the heavily infested northeastern 
area were mentioned as destroying a part of the hatch of the 
two- striped grasshopper. Similar rains over this area on June 
1, and on several dates subsequently, have reduced the grass- 
hopper population in this badly threatened district very, 
materially, perhaps 50 per cent. But in parts of this area 
still, and over a large section of western Nebraska where lit- 
tle rain has fallen during May and June to date, grasshoppers 
remain menacingly abundant locally and threaten serious crop 
damage. 
H. R. Brjrson (June 24): Apparently grasshoppers are more 
numerous in the vicinity of Manhattan this season than last 
