1918J Pupce of Common Sphingidce 437 



Genus Amphion Hbn. 



In this genus the caudal half of the body is much narrower 

 and more tapering than the typical sphingid, indeed more than 

 any of the other sphingid pupae examined. This, together with 

 the long pointed cremaster and the small tubercles at the 

 cephalic end, are quite distinctive. The labrum is at the cephalic 

 end of the body and the maxillae extend to the caudal margin of 

 the wings. The scar of the caudal horn is easily recognized. 

 The cremaster is about twice as long as broad and ends in a 

 sharp point, which is occasionally bifid at tip. 



Amphion nessus Cram. 



Color uniform dark brown; surface of head, thorax and appendages 

 dull, considerable roughened, with deep, wavy transverse furrows near 

 the cephalic end, abdomen punctate, the punctures large and confluent 

 on segments 1-4, lunate on o-S, and deeper circular punctures on 8-10; 

 mandibular tubercles nearly always prominent; antennae of female 

 extending half way between the tips of the prothoracic and mesothoracic 

 legs, those of the male slightly longer; prothoracic femur never visible; 

 maxillae very rugose at cephalic end; cremaster rugose, usually 4 mm. 

 long. Length of pupa 32-37 mm., greatest width S-9 mm. 



Genus Proserpinus G. «S: R. 



The pupae of this genus are small and slender, averaging 

 about an inch in length. They are typically sphingiform, with 

 the labrum at the cephalic end of the body, not visible in ventral 

 view\ There are prominent mandibular tubercles visible in 

 ventral view at the end of the body. The maxillae are of the 

 usual type and extend to the caudal margin of the wings. The 

 antennae are filiform and apparently do not differ in the sexes. 

 There is always a small portion of the prothoracic femur 

 exposed. There are no spiracular furrows present, the cephalic 

 margin of each movable segment is punctate like the adjacent 

 portion. The scar of the caudal horn may usually be identified 

 but is not very distinct. The cremaster is narrow and triangular, 

 ending in a sharp point. 



There are probably only three species of Proserpinus, two 

 occurring in this region, and it has only been possible to obtain 

 pupae of P. juanita and P. gaurce. These are found in the south- 

 ern part of the United States. As only one specimen of P. gaiirce 

 was obtained its variations could not be noted. It seemed to 

 dififer from P. juanita in one important particular which I 



