7 
The species last mentioned was for many years credited with being 
a primary parasite of the bagworm, although recent observations 
would indicate that it is a secondary parasite when infesting other 
Fic. 6.—Pimpla inquisitor: Female, from 
side. Enlarged (from Howard). 
Fic. 7.—Allocota (Hemiteles) thyridopterigis. Muchenlarged 
(original). 
caterpillars. This might be explained by the hypothesis that this 
parasite oviposits only in cocoons or cases of firm texture, and there- 
fore can not be the primary parasite of an insect which is not provided 
with a case of that character. 
Much enlarged (after 
Fic. 8.—Spilochaleis mariz. 
Riley). 
Certain chalcis flies also breed in 
the bags of this insect. These include 
Spilochalcis marie Riley (fig. 8), 
Chalcis ovata Say (fig. 9), and the — Fic. 9.—Chalcis ovata: Adult. Enlarged 
common little Dibrachys boucheanus sack mango 
Ratz. (fig. 10). This last is a hyperparasite, in the case of the bag- 
worm probably secondary, and in the case of other caterpillars ¢ 
[Cir. 97] 
4 
