Sphingidae 

 couverensis vancouverensis in which the middle of the 

 thorax is pale gray, and the other, Hyloicus vancouverensis 

 albescens, which has a very dark thorax, and which is figured 

 on our plate. The moth is found from northern California to 

 British Columbia, and eastward to Montana and Alberta. 



(6) Hyloicus insolita Lintner, Plate V, Fig. 4, $ . 

 (Lintner's Sphinx.) 



This species, which is well represented on our plate, occurs 

 in Texas. It is not common in collections. Rothschild & Jordan 

 regard it as a form of H. libocedrns Henry Edwards, and 

 apparently with reason. 



(7) Hyloicus perelegans Henry Edwards. (The Elegant 

 Sphinx.) 



This hawkmoth may be distinguished by the even dark 

 silvery-gray color of the fore wings, which are crossed by a dis- 

 tinct submarginal whitish band. The maculation recalls a dark 

 chersis with the dark thorax and the body of H. drupiferarum. 

 It is found on the Pacific coast. 



(8) Hyloicus canadensis 

 Boisduval. 



Syn. plota Strccker. 



This species, which is not 

 common, is represented by the 

 accompanying cut (Fig. 25), 

 drawn from a specimen in the 

 Engel Collection in the Carnegie 

 Museum, and taken in Massa- 

 chusetts. It occurs in eastern 

 Canada, northern New York, 

 and New England. 



(9) Hyloicus ^almiae Abbot & Smith, Plate VI, Fig. 8, ? . 

 (The Laurel Sphinx.) 



This hawkmoth feeds in the larval stage upon Kalmia, Chi- 

 onanthus, and Fraxinus. It is not uncommon in the Middle 

 States of the Atlantic coast region, ranging from southern 

 Canada to Georgia. 



(10) Hyloicus gordius Cramer, Plate V, Fig. 13, 3. (The 

 Gordian Sphinx.) 



Syn. ptxctla Stephens. 



Fig. 25. Hyloicus canadensis. 



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