Eul. 102B. IJ. S. D = nt. nf Agri'-.ulturs 



PLATE I 



APANTELES MELANOSCELUS. 



A, Hibernating cocoons on board found in Molrosc, Islass., 1917: B, first-generation cocoons on 

 branch collected at Quincy, Mass., 1920; C, first-generation cocoons on branch collected at Mel- 

 rose, Mass., 1916; I), first-generation cocoons on branch collected at Qiiincy, Mass., 1920; E, 

 third-stage maggot two-thirds of its way out of fourth-stage gipsy-moth larv^a; F, tnird-stage 

 maggot dissected from host, anal vesicle still evaginated. 



