32 
Adiastola americana n. sp.! 
Three specimens of this species, two females and one male, were 
reared November 6, 1895, from cocoon masses of Orgyia under observa- 
tion. This species also is likely to be a parasite of Pimpla inquisitor. 
Otacustes periliti Ashm. 
A single specimen of this spe- 
cies issued from a cocoon of Mete- 
orus communis March 5, 1896, the 
Meteorus having previously par- 
asitized an Orgyia larva. This 
species was reared from the same 
host at Washington in 1882, but 
has not since been found. 
Allocota thyridopterigis (Riley). 
\ A single specimen of this in- 
Fia. 14.— Bathythrix pimple : Female—enlarged (origi- sect, which is commonly reared 
oe from the bags of the bagworm 
and which was first described by Riley as a parasite of this species, 
was seen crawling rapidly over the trunk of a poplar tree in Septem- 
ber, 1895, investigating Orgyia cocoons. It was doubtless attracted by 
Fic. 15.—Otacustes periliti: Female, dorsal view, at right; same, ovipositing in Meteorus cocoon, at 
left—enlarged (original; the latter from field sketch by Pergande). 
the abundance of Pimplas, and as Riley has shown that it is a hyperpara- 
site of Pimpla conquisitor, we may safely put it down as a secondary 
parasite in the case of Orgyia leucostigma, the more especially as no 
1Described in the appendix, page 54. 
