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THE CANADIAN ENTOMOLOGIST. 



THE ABBOT SPHINX— Thy reus Abbotii Swainson. 



BY THE I I 'III IR. 



The subject of this illustration is another of the large grape-feeding 

 insects which is found occasionally on both cultivated and wild vines, as 

 well as on the Virginia Creeper. Jn fig. 7 we have the full-grown larva 





Hi. 



figured, as well as the moth. This larva is said to vary considerably in 

 appearance, the ground color ranging between reddish-brown and dirty 

 yellowish. 



As we have never met with the larva ourselves, we shall copy Mr. 

 Riley's description of it as it was found by him in Missouri : " 1 have 

 reared two individuals which came to their growth about the last of July, 

 at which time they were both without a vestige of green. The ground 

 color was dirty yellowish, especially at the side. Each segment was 

 marked transversely with six or seven slightly impressed fine black lines, 

 and longitudinally with wider non-impressed dark brown patches, alter- 

 nating with each other and giving the worm a checkered appearance. 

 These patches become more dense along the sub-dorsal region, where they 

 form two irregular dark lines, which on the thoracic segments become 

 single with a similar line between them. There was also a dark stigmatal 

 line, with a lighter shade above it, and a dark stripe running obliquely 



