Sphingidae 
(1) Calasymbolus excaecatus Abbot & Smith, Plate VH, 
Fig. 4, $ . (The Blinded Sphinx.) 
Syn. pavonina Geyer. 
The larva feeds upon various plants of the order Rosacece, 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 of 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 common as C. excaecatus. 
(3) Calasymbolus astylus Drury, Plate IV, Fig. 10, 3 . 
(The Huckleberry Sphinx.) 
Syn io Gray; integerrima Harris. 
A rather scarce species, which is found from New England to 
Pennsylvania. The caterpillar feeds upon various species of 
Vaccinium 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 exccecatus they are scalloped. The 
transverse lines on the limbal area of the fore wings, which 
are distinct in myops , 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 
who 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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