THE SEMTTROPICAL ABMY WORM. 
61 
By the first of September Mr. Cheney's patch of sweet potatoes was 
entirely free from this insect, evidently owing largely to parasites 
and to the spraying with arsenate of lead. 
August 30, 1907. Mr. Wm Donnell. St Augustine, Fla., reported 
thai a cutworm, which he identified as this species, had been very 
destructive in that region, being especially abundant on beets, and 
Pig. 11.— The semltropical army worm (Prod en ia eridania) : Larvae eating bark of "care- 
less weed;" also nymph of Podisus macuHventria, predaceons on the larre. (Origi- 
nal.) 
later affecting cabbage, carrots (by eating the tops), ami some other 
plants, it- operations being most noticeable at night. 
.Mr. E. L. Worsham, while employed by this Bureau, noticed this 
species on the west coast, near the Manatee River, in Florida, and 
reported it working quite extensively in that region in August 
On November 23, 1907. an egg-mass was found on pokeweed at 
Dade City, Fla., and December "J another was observed, from which 
