68 N. S. ENTOMOLOGICAL SOCIETY 



The Pupa. 



The female pupa, with head, thorax, first four abdominal 

 segments, cremaster and spiracles, dark brown, the remainder 

 of the body rather lighter brown. The first three dorsal tufts 

 are represented by subquadrangular, granular brownish- yellow 

 patches, which, under the glass, resemble minute egg masses. 

 The body tufts of the larva are represented by minutely granu- 

 lated patches covered with coarse hair. Wings attaining the 

 caudal margin of the fourth abdominal segment. Length 21 

 m. m.-23 m. m.; width, 8 m. m.-9 m. m. 



The male pupa resembles that of the female, but is smaller, 

 measuring 15 m. m.-16 m. m. 



The Adult. 



The female moth, when disturbed, will crawl away and 

 hide rather than attempt to fly; the males, however, fly quite 

 readily even in the day time, two being attracted to the insect- 

 tary about midday by the presence of a female in cage. The 

 copulation period lasts from twelve to twenty-four hours, and 

 the preoviposition about two days in the specimens observed 

 by us. 



For descriptions of the adult forms, reference should be 

 made to Barnes & McDunnough's revision (ibid. Vol. II, No. 

 2, : 61-62) Most of our adults were used for rearing purposes 

 and were too badl'y battered to use for purposes of descriptions. 

 A wide variation in coloration was noted between the different 

 specimens reared in the laboratory, and no two were alike 

 in this respect. Most of them, however, were darker than the 

 typical vagans, though a few seemed to agree very well with 

 the original description of the species. From the material 

 now hibernating, we hope to secure further material from which 

 a study of adult variation can be made. 



Natural Enemies 



Since most of our material was reared in the laboratory 

 and the insect is only rarely found in the orchard, we had little 

 opportunity to make a study of its natural enemies. In fact 

 the only parasite actually discovered was Tachina mella Walk. 

 Doubtless further observations will uncover other species, as 

 the scarcity of the insect would seem to indicate the probabil- 

 ity of it being held in check by its parasitic or predaceous foes. 



