52 



the spaces between the medio-dorsal and sub-dorsal lines — is a row 

 of oblique black spots, one spot to each segment, and most distinct 

 on the posterior part of the body; the two spots on one segment 

 are sometimes joined together at their posterior ends, forming a 

 semi-circle ; piliferous spots sub-obsolete, black ; spiracles white, 

 ringed with black ; venter, or under part of the body, pale-greenish, 

 usually with a light colored line in the middle ; head yellowish- 

 brown, marked with two curved black or brownish spots, curving in 

 opposite directions, on the face, and with one or two black or 

 brownish spots on each side of the head. When fully grown it meas- 

 ures about one and three-fourths inches in length. 



There are two broods of Spotted Cut-worms produced in one 

 season ; those of the last brood issue from the eggs in the fall, 

 hibernate, and reach their full size in the latter part of April or 

 during the first half of May of the following year. After reaching 

 their full size they burrow into the earth, and prepare for pupation 

 by forming a small cell; the moths appear early in June, and soon 

 deposit their eggs, from which a second brood of Cut- worms is pro- 

 duced; and it is to this second brood that the worms found in the 

 Hungarian field undoubtedly belonged. I did not rear any of these 

 to the perfect state, but on the evening of September 9th I caught 

 two of the moths on the side of a house, where I saw several more. 

 They were all very fresh appearing, and were no doubt produced 

 from this second brood of worms. These moths, in the course of a 

 few weeks, deposit their eggs, and from 'these the hibernating worms 

 are in due time hatched. 



On the same day that I examined the Hungarian field (July 18), 

 I collected ninety-four Army Worms in a very short time, taking 

 only those which were nearly full-grown ; these I placed in two 

 separate apartments of a box improvised for the occasion. This 

 box was composed wholly of pine boards, and when closed was 

 perfectly dark within. It was divided by a partition into two 

 apartments, and each apartment had a separate, close-fitting lid. 

 In one apartment I placed those worms which had one or more 

 Tachina eggs attached to their bodies ; these eggs are small, elon- 

 gate-elliptical, raised white objects, and were usually placed on the 

 anterior part of the body. The majority of the worms had from 

 one to three of these eggs attached to them, but some had as many 

 as half a dozen. 



In the other apartment I placed those worms which had none of 

 these eggs attached to them. I took great care in separating 

 them, and am certain that the worms designed for a certain apart- 

 ment were in every mstance placed in that apartment. Both lots 

 of the worms were fed on timothy, the leaves of which they greedily 

 devoured. Sometimes, in raising up one of the lids, I would find 

 some of the worms near the top of the box on the stalks of timothy ; 

 but as soon as the light struck them they let go their hold and 

 dropped to the bottom of the box, and quickly hid themselves 

 beneath the grass, etc., with which the bottom of the box was 

 covered. 



By the 28th of July all of the worms had ceased to feed, and 

 had crept beneath the grass, etc., in the bottom of the box, and 

 prepared for pupation. 



