SphingidsB 



(i) Calasymbolus excacatus Abbot & Smith, Plate VII, 

 Fig. 4, $ . (The Blinded Sphinx.) 



Syn. pavonina Geyer. 



The larva feeds upon various plants of the order Rosacect, but 

 does not strictly confine itself to these. It has been reported as 

 found upon the willow, the hazel, iron-wood, and other allied 

 plants. It is a common species, and in the region of Pennsyl- 

 vania is double-brooded. It ranges from southern Canada to 

 Florida and westward across the valley of the Mississippi to the 

 borders cf the great plains. 



(2) Calasymbolus myops Abbot & Smith, Plate IV, Fig. 

 12, $ . (The Small-eyed Sphinx.) 



Syn. rosacearum Boisduval. 



The food-plants and the geographical distribution of this 

 species are very much the same as those of the preceding 

 species, though it . seems to range a little further westward, 

 examples having been received from Colorado. It is not nearly 

 as com. m on as C. exavcatus. 



(3) Calasymbolus astylus Drury, Plate IV, Fig. 10, ^. 

 (The Huckleberry Sphinx.) 



Syn io Gray; iniegerrima Harris. 



A rather scarce species, which is found from New England to 

 Pennsylvania. The caterpillar feeds upon various species of 

 Vacciiiium and allied plants. The moth is easily distinguished 

 by the fact that the outer margins of the fore wings are almost 

 even, whereas in myops they are distinctly produced at the 

 end of vein 3, and in exccvcatus they are scalloped. The 

 transverse lines on the limbal area of the fore wings, which 

 are distinct in tnyops, are almost wanting in astylus, and the 

 inner margin of the primaries is heavily margined with dark 

 brown. 



Genus PACHYSPHINX Rothschild & Jordan 



The genus Pachysphinx has been erected for the reception of 

 the single species, two forms of which we figure on our plates. 

 It is very different from the oriental genus Marumba, into which 

 Mr. Dyar, following Kirby, has put it in his recent List. Any one 

 Vv'ho is familiar with the peculiar style of coloration of the species 

 of Marumba, as well as with the structural differences, which 



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