293 Catalogue of North American Sphinges. 



(Faun. Bor. Amer. IV, p. 301, pi. 4, fig. 4,) is probably identical 

 with Drury's species. 



* * * AntenncB, in the males, with the joints distinct and doubly 

 bijoectinated. 



5. >§. Juglandis. Smith-Abbot. 



Rosy gray, drab, or dusky brown ; wings indented on the outer 

 edges ; fore-wings with a dusky outer margin, a short brownish 

 dash near the middle, and four transverse brown lines converging 

 behind and enclosing a square dark brown spot adjacent to the 

 middle of the inner margin ; hind wings with two narrow trans- 

 verse brown lines between two brownish bands ; thorax with a 

 central brown line ; abdominal segments plaited and prominent 

 at the sides. Expands from two and a quarter to three inches. 

 The females are much larger and of a lighter brownish gray color 

 than the males, with the square spot on the fore-wings less dis- 

 tinct. Larva with the head small, and the body attenuated be- 

 fore and behind, pale blue-green, with a long caudal horn, and 

 seven oblique white bands on each side. When disturbed it 

 makes a creaking noise by rubbing together the joints of the fore- 

 part of its body. It eats the leaves of the black walnut, and en- 

 ters the earth to undergo its transformations. Mr. Abbot (Ins. 

 Georg. p. 57, pi. 29) has figured a remarkable variety of the larva, 

 which is of a crimson color, with the fore-part of the body and 

 the oblique bands yellow. Pupa deep chestnut-brown, granula- 

 ted, with six little tubercles on the head-case, a transverse row of 

 acuminated granules on the hinder edges of the abdominal seg- 

 ments, the last three of which segments are flattened beneath and 

 angularly dilated at the sides, with the tip broad, truncated, and 

 externally bidentate. 



The antennae of the males of this species differ from those of 

 the preceding in having the joints distinct to the naked eye, and 

 each joint furnished with two teeth or short pectinations on each 

 side. Mr. Doubleday presented me with specimens, from Flor- 

 ida, which differ from our northern specimens only in being of a 

 darker color. 



* * * * AntenncB, in the males, . 



6. S. QJiodesta. H. 



Drab-colored ; fore-wings scalloped, with a transverse dusky 

 band before the middle ; hind- wings purplish-red in the middle, 

 deeper red next to the base, and with a blackish spot near the 

 anal angle. Expands four inches and one quarter. 



