Similar releases were made in the western area from Huron County, in the 
"thumb" district of Michigan, southward to Darke and Miami Counties in Ohio 
and as far west as Steuben and Allen Counties, Ind. The parasite was rlso 
released in the heavily infested counties along the south shoresof Lakes 
Ontario and Erie, in western New York. Map 1 shows all counties in which this 
parasite 'was released. During the 1937 season, c total of 1,257 adults of L 
punctoria were shipped to Canada for release there. 
Chelonus annulipes Wesm . — Test releases of the braconid _C. annulipes , 
a parasite which attacks the egg stage of the corn borer and emerges from the 
fourth-instar larva, were made at two points in Connecticut, one point in New 
Jersey, and two in Virginia. The releases of C* . annulipes in substantial 
numbers in Virginia were made possible by a supply of this" parasite received 
from the Canadian Department of Agriculture, through the courtesy of the 
Dominion Parasite Laboratory located at Belleville, Ontario. Adults received 
from Canada were laboratory reared. The other parasites released emerged from 
material imported from. Italy. ■ Releases in Connecticut and New .'Jersey were syn- 
chronized, with the presence in the. field of first-generation eggs and in Vir- 
ginia with eggs of the second generation of the borer. A total of 10,305. 
adult parasites of this species were liberated at the 5 locations. 
Lydella strb ulans var. ■grisescens R. Desv. — This tachinid parasite had 
been colonized practically throughout the infested area prior to 1937. How- 
ever, during this season. 1 colony, consisting of 1,987 adults, was liberated 
at New Fairfield, in Fairfield County, Conn., where corn borer infestation : 
had recently .increased sufficiently to justify a release. A small release of 
this parasite was also made ..in Now Jersey. A total of 4,319 adults wereshippe 
to the Dominion Parasite Laboratory' at Belleville, Ontario, for release in that 
area. Over 400 L. .. grisescen s, of whi<jh half were mated females, were Lshipped 
by air express to the Bureau laboratory at Presidio, Tex., for testing on the 
gink bollworm ( Pectinophcra gossypielj,a Saund. ).. 
'■ O ther paras ites . —A small number of adults of the larval parasite Ba'ssus 
. agil is Cress, and qf Labrorychus prfsmaticus Nort., which emerge from the. host 
in the pupal stage, were obtained. "These native parasites were released in 
New Jersey, as shown in table 1. 
