Meteorus sp. 



Host : Macrobotys pertextalis (Led.) . 

 Locality: Melrose, Mass. 

 Adults: July. 

 Number per host: One. 

 Generations: Possibly three. 

 Hibernation: Not recorded. 



Meteorus trachynotus Vier. 



Hosts: Archips rosana (L.), Episimus argutanus (Clem.). 



Localities: Melrose and Roxbury, Mass. 



Adults: July- August. 



Number per host: One. 



Generations : At least two. 



Hibernation: Not recorded. 



Subfamily Magrocentrinae 



Macrocentrus ancylivorus Roh. 



Host: Exartema sericoranum Wlshm. 

 Locality: Westerly, R. I. 

 Adults: July. 

 Number per host: One. 



Macrocentrus cerasivoranae Vier. 



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

 irvfumatana (Zell.). 



Localities: Many in Maine, New Hampshire, Vermont, Massa- 

 chusetts, Rhode Island, Connecticut, New York, and New Jersey. 



Adults: Mid-July and August. 



Number per host: One. 



Generations: Probably two. 



Hibernation: Not recorded. 



Macrocentrus delicatus Cress. 



Host: Episimus argutanus (Clem.). 



Localities: Revere, Roxbury, and Wakefield, Mass. 



Adults: July- August, and October. 



Number per host: One. 



Generations: Two, possibly three. 



Hibernation: Not recorded. 



Macrocentrus exartemae Walley 



Host: Exartema valdanum McD. 

 Localities: Bangor and Orrington, Maine. 

 Adults: Late in July. 

 Number per host: Gregarious. 



Macrocentrus instabilis Mues. 



Host: Acrobasis betulella Hulst. 



Localities: Bangor, Maine, and Acton, Mass. 



Adults: July. 



Number per host: One. 



Generations: Probably two. 



Hibernation: Not recorded. 



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