Generations: At least two. 

 Hibernation: Not recorded. 



Chaetexorista javana B. & B. 



Host: Cnidocampa flavescens (Wlk.). 



Localities: Boston and suburbs, Mass. 



Adults: Late in July and August. 



Number per host: One. 



Generations: One. 



Hibernation: As a maggot in host prepupal larva. 



Compsilura concinnata (Meig.) 



Hosts: Many macrolepidoptera ; also Ar chips cerasivorana (Fitch), 

 Cnidocampa flavescens (Wlk.), Evergestis straminalis (Hbn.), Lagoa 

 crispata Pack.J, Oidaematophorus homodactylus (Wlk.). 



Localities: Recoveries from New England, New York, New Jersey, 

 and Pennsylvania. 



Adults: May, June, July, August, and September. 



Number per host: One to five. 



Generations: Two to four. 



Hibernation: As maggot in host prepupa or pupa. 



Compsilurini, near Lydinolydella sp. (?) 



Host: Archips rosana (L.). 

 Locality: Melrose, Mass. 

 Adults: July. 

 Number per host: One. 

 Generations: At least two. 

 Hibernation: Not recorded. 



Dichaetoneura leucoptera John. 



Hosts: Archips cerasivorana (Fitch), A. fervidana (Clem.), De- 

 pressaria heracliana (L.). 



Localities: Many throughout New England, New York, and New 

 Jersey. 



Adults: July, August, and September. 



Number per host: One. 



Generations: At least two. 



Hibernation: Not recorded. 



Exorista larvarum (L.) (= Tachina mella Wlk.) 2 



Hosts: Many macrolepidoptera; also Archips fervidana (Clem.). 

 Localities: New England, New York, New Jersey, and Pennsyl- 

 vania. 

 Adults: May, and June to October. 



Number per host: Usually 1 or 2, though as many as 11 recorded. 

 Generations : Two or three. 

 Hibernation: As maggot in host larva or pupa. 



2 Introduced sp. (par. of gypsy and brown-tail moths — E. Larvarum (L.) 

 Native sp. — E. mella (Wlk.). Adults cannot yet be distinguished, unfortunately. 

 For a long time the two have been regarded as one species, but there is evidence 

 in biology to separate them in the mature stages. 



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