in abundance only at long intervals, as well as 

 ere seldom found. 



ised depended upon the number of larvae and 

 . soil for pupation. Larvae that did not require 

 >oden trays with cloth bottoms and glass tops, 

 all tin cans, or glass jars. Those that required 

 3S-covered metal trays with at least a part of the 

 fine mesh wire, or in various types of glass jars 

 ch had been placed layers of sifted soil or peat 



larvae was supplied with its proper food and 

 the larval instars. From this time until all 

 aergence had passed, they -were examined regu- 

 adult parasites. Then containers with hiber- 

 stored during the late fall and winter, in a cool 

 lire fluctuations were slight. During the spring 

 es, throughout the summer) this material was 

 r issuance of aduJts and parasites, 

 rous cocoons and larvaevorid puparia that nor- 

 in the ground were successfully carried through 

 cylinders with bottoms of plaster of paris, and 

 3 a substitute for soil. Glass vials with cotton 

 ry as issuance containers for many species of 

 a, such as species of Apanteles, Bracon, Meteorus, 

 ults of the Larvaevoridae and the larger Hy- 

 i and pinned while fresh and given temporary 

 ring number and date of issuance. The smaller 

 eing killed, were placed in small glass vials with 

 ere relaxed and pinned or placed on card points 

 vinter. 



sm and Hyperparasitism 



very few exceptions, were collected while in the 

 ages. Therefore, they had not been exposed to 

 itization such as might have occurred had they 

 ral habitats. Parasites that emerge from larvae 

 3re likewise often missed because the bulk of the 

 3 when the larvae were from half to nearly full 

 3 reason, parasites that attack their hosts during 

 or in the pupal stage also probably were missed, 

 puparia formed after the arrival of their hosts at 

 y were not exposed to secondary parasites that 

 i in this stage under natural conditions. Such 

 iites as were reared from them, therefore, must 

 imary parasite while within its host prior to the 

 or the above reasons the parasite lists given here 

 ed complete for any of the hosts. 



3 



(3 sheets) 



:::5«:::::::::::«"" 



■■■■■■■■■■■■■■--- ^--- 



■ MM 



%&$& 



drawings maj !><• obtained throt 

 mm ihc Extension agricultural en 

 rirultural colleges. There 1- asm 



v->i. TWO-PEN BULL BAM 

 .1) LOTS 



this plan arc nol a\ silable in j< 

 Dgpart tnenl of Agriculture, \n 

 iearch Division, Manf Indnsl 



1 tic 1 . s. Depart menl of kg 



• • draw ingS, Inn will direct \ 



bute them. 



