Sl'HINGIDJE. 275 



The species are said to fly heavily and only in the night. The 

 head of the larva is semi-oval or pyramidal, acute above, and 

 the thoracic rings are obliquely banded on each side. The 

 pupa is smooth, cylindrical and somewhat conical in form. S. 

 iiKxlcxtns Harris is a very large species, expanding nearly six 

 inches. It feeds on the Lombardy poplar. S. exccecatus Smith 

 has the hind wings rosy on the inner angle. The "ocellus" or 

 eye-like spot is black, with a large, pale blue pupil. The 

 larva is apple green, with seven oblique, yellowish white lines 

 on the sides, and a bluish caudal horn. It feeds on the apple 

 and the Rosa Carolina. S. geminatus Say (Fig. 202, venation 

 of the hind wing) is so called from the two sky-blue pupils in 

 the black ocellus on the roseate hind wings. 

 The pupa has been found at the roots of 

 willows. 



lu the genus I'lu'/ampc/HN, or lover of the vine, 

 as its name indicates, the tongue is again as long Fi s- - 02 - 

 as the body. The antennae have a long hook tapering to 

 the end, bearing cilia? in the male. The abdomen is large and 

 thick, and the wings are deeply concave on the inner border. 

 The larva has a tubercle in place of a caudal horn. The 

 tongue-case of the pupa is not free. P. vitis Harris is olive 

 green, with pale green hind wings, which are rose-red towards 

 the inner margin. The larva is flesh-colored mixed with yel- 

 low, and with short, transverse, black lines, and lateral, semi- 

 oval, yellowish white bands, edged with black. 



In Deilephihi the abdomen tapers suddenly at the tip and 

 the fusiform antennae end in a minute hook. The gaily colored 

 larva has a straight and rather short caudal horn. There are no 

 oblique bands on the sides of the body, but a row of subdorsal 

 spots on each side. Clemens states that the anterior segments 

 are much attenuated, and are capable of being withdrawn or 

 shortened, or much extended. "When disturbed they fall from 

 their food-plants, shorten the anterior segments and bend the 

 head inwards." They transform in a cell excavated from the 

 surface. The tongue-case of the pupa is not free. D. lhi(><tt 

 Fabr. is olive green, with six white lines on the thorax. The hind 

 wings are black with a rose colored central band. The larva is 

 yellowish green ; the subdorsal spots consisting of two curved, 



