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. libocedrus 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 Strecker. 
This species, which is not 
common, is represented by the 
accompanying cut (Fig. 2 5), 
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 kalmiae Abbot 
(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, (The 
Fig. 25. —Hylotcus canadensis. 
& Smith, Plate VI, Fig. 8, $ 
Gordian Sphinx.) 
Syn. pcecila Stephens. 
51 
