[110] EEPORT UNITED STATES ENTOMOLOGICAL COMMISSION. 



but for somo reason not known to me (nor any one else hereabouts) they did not 

 amount to much. No eggs were laid in 1877. Now, Ames isijrobably about as far east 

 as these locusts have passed in Iowa. Hence observations here have a peculiar value 

 in certain respects, while in others they are not so valuable. In 1875 I sent out many 

 inquiries as to locust devastations, but failed to receive replies in most cases. I give 

 results from four counties : 



Monona County. — Invasion from the south on the 24th aiid 25th of June ; mostly 

 flying toward the northwest. But little damage done. Parasites numerous. 



Pottawattamie County. — Invasion June 20 ; present about two weeks; flight some- 

 times from south and sometimes from northeast. Destroyed one-fifth of crops. Red 

 mites on the locusts. 



Fremont County. — Invasion about June 10; came from southwest and northwest ; 

 flight continued for fifteen days. Then they left, going west and northwest. Injury 

 to crops: Corn, one-fourth; barley, one-half ; oats and wheat slight; beans, onions, 

 cabbages, cauliflower, beets, all gone. 



Decatur County. — Some i^assed over, and a few parasitized ones fell, but no damage 

 done. 



In 1876 I also sent out inquiries. If you will turn to page 63 of Riley's last (ninth) 

 report you will find the results tabulated. It will save both your and my time to take 

 the matter from that report. In 1877 the young insects throughout the State did but 

 little damage, and I know of no case in which eggs were laid in the fall of that year 

 (1877). I regret that I am unable to give more exact data, but trust that what I have 

 given may not be altogether worthless. — [Prof. C. E. Bessey, Ames. 



