Sphingidse 
Form cimbiciformis Stephens, Plate II, Fig. 6, ? . 
Syn. ruficaudis Walker (partim); floridensis Grote; uniformis Grote 
8c Robinson; buffaloensis Grote; pyramus Boisduval. 
This is the largest and the commonest species of the genus. 
It may easily be recognized by the figures given on Plate II. It 
is subject to considerable variation. The form cimbiciformis 
is distinguished by the absence of the dentations on the inner 
side of the marginal brown band of the fore wings. It has been 
obtained by breeding from the eggs of H. thysbe , and thysbe has 
been bred from it. It is a dimorphic form of the species. The 
caterpillar of H. thysbe feeds upon Viburnum and allied plants. 
The insect ranges from Canada and Nova Scotia southward to 
Florida and westward to the Mississippi. 
(2) Haemorrhagia gracilis Grote Sc Robinson, Plate III, 
Fig. 15, (The Graceful Clearwing.) 
Syn. ruficaudis Walker ( non Kirby) ( pariim ). 
The thorax and basal segments above are olive-green. The 
middle segments are black, the two preterminal segments are 
margined laterally with reddish. The anal tuft is black, divided 
in the middle by red hairs. On the under side the palpi, pectus, 
and thorax are white, and the abdomen pale red. The pale area 
of the thorax is traversed, on either side by a stripe of reddish 
hair, and there are three rows of white spots on the under side 
of the abdomen. It occurs in the States of the Atlantic seaboard 
from New England to the Carolinas. 
(3) Haemorrhagia diffinis Boisduval. (The Snowberry 
Clearwing.) 
Spring form tenuis Grote, Plate II, Fig. 2, $ . 
Syn. jumosa Strecker; metathetis Butler; diffinis Beutenmuller. 
Summer form diffinis Boisduval. 
Syn. marginalis Grote. 
Summer form axillaris Grote & Robinson, Plate II, Fig. 3, $ ; 
Fig. 4 , 5 • 
Syn. grotei Butler; cethra Strecker. 
This species is trimorphic. The life history has been in part 
very carefully worked out by Mr. Ellison Smythe of Blacksburg, 
Virginia. (See “Entomological News,” Vol. XI, p. 584.) 
The form diffinis has the marginal band dentate inwardly. 
The caterpillar feeds upon Symphoricarpus , Lonicera , and 
Diervilla. The insect has a wide range from New England to 
63 
