1864.] . 6G5 



Tongue-case buried, extending nearly to the tips of the wing-cases. 

 Antennae-cases prominent, granulated, — their tips in the % , nearer to 

 the tips of the middle leg-cases than to those of the anterior ones ; in 

 the 9 , extending a little beyond the tips of the anterior. First seg- 

 ment, wrinkled, with a moderately elevated, glossy medial line — its stig- 

 ma, broadly open, semi-oval. Second segment, wrinkled, projecting at 

 the base of the wing-cases, with a glossy medial line upon its anterior 

 and central portion. Third segment with a nearly central transverse 

 plait, bisected by a dorsal carination, which is broader posteriorly, acute 

 anteriorly, and not extending to either margin; these last two segments 

 depressed posterior to the bases of the wing-cases. The abdominal seg- 

 ments with confluent punctulations — with delicate transverse wrinkles 

 on their posterior portion, and a line of dorsal granulations of about 

 four to the segment, each on a prominent wrinkle, which becomes obso- 

 lete laterally. Stigmata ochraceous, except the first and the last, which 

 are brown. Terminal spine of moderate length, constricted at the base, 

 quite rugose, and minutely bifid. 10 S , 8 9 . 



Smerinthus exc^catus Sm. and Ab. 



Larva. Head apple-green, granulated, flattened, triangular, the apex 

 rising somewhat above the first segment, with bright yellow, straight, 

 lateral lines, in which are rounded granulations, increasing in size as 

 they approach the apex. Body, with thoracic segments tapering, light 

 green, studded with pointed white granulations. Lateral bands, yellow, 

 each occupying three-eighths, the whole, and six-eighths of three seg- 

 ments respectively — on the central segment straight, on the following 

 one, curved posteriorly, not angulated at the incisure, — having within 

 them a granulation on each annulation (eight to the segment) larger 

 than those elsewhere on the body. Subdorsal thoracic line, yellow, 

 granulated as in the bands, commencing on the anterior of the first seg- 

 ment, diverging from the dorsum as it proceeds, and uniting at the 

 sixth annulation of the fourth segment, with the first lateral band. 

 Caudal horn, nearly straight, .25 in. long, acutely granulated, rose- 

 colored, yellow laterally and often yellow tipped. Legs at tips, reddish- 

 brown. Stigmata, brown bordered. 



I have taken the mature larva, from the middle of August to the last 

 of September, feeding on the apple and plum. It has also been found 

 on the elm, by W. H. Edwards, Esq. 



