Sphingidae 



Form cimbiciformis Stephens, Plate II, Fig. 6, ? . 



Syn. ruficaudis Walker (partim) ; floridensis Grote ; uniformis Grote 

 & 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 & Robinson, Plate III, 

 Fig. 15, $. (The Graceful Clearwing.) 



Syn. ruficaudis Walker (non Kirby) (partim). 



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. fumosa Strecker; metathetis Butler; diffinis Beutenmuller. 



Summer form diffinis Boisduval. 



Syn. marginalis Grote. 



Summer form axillaris Grote & Robinson, Plate II, Fig. 3, $ ; 

 Fig. 4, ? - 



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 

 Dier-villa. The insect has a wide range from New England to 



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