300 



branch, by the aid of a thread of silk, when inclined to wander. I have one 

 in a vial of spirit that was feeding, the only one I could procure, and four 

 others that had closed their sacks for the season," etc. " The drop-worm 

 pod, which I enclose, is empty. It is off" a maple, and larger than the one 

 last sent. My brother promises a box full from Maryland, where he resides. 

 He says they have been on his cedar trees in profusion this summer." 



Larva (in spirit), taken Sept. 20?, fusiform, broadest across the fifth ring, 

 as seen on the back, but seen laterally the third and fourth rings are the 

 thickest. Length fifteen sixteenths of an inch. Body, except the head 

 and first three rings, livid, smooth, without hairs. Head moderate, hemi- 

 spherical, white, spotted with black, one row of six spots in 

 , • * ^ form of an angle in front, and behind them on each side three 



linear spots, Avith others of an irregular shape near them. Five 

 Fi?. 43. : . . . . 



eyelets in a circle, immediately behind each of the palpi. First 



seo"mont corneous above, white, regularly ornamented Avith black spots, 

 second and third segments shorter and much Avider. The second with a 

 transverse, corneous, Avhite plate above, marked Avith four large, longitu- 

 dinal, black spots, and two black dots; third segment Avith transverse, oval, 

 corneous plates, particolored black and Avhite. Legs very large, all directed 

 forwards and claAv-like, having the coxa3 of each pair very large, lamellate, 

 and coalescing by a suture. The third pair of legs the largest, the others 

 progressively smaller, all ending with a single stout chiAv. Coxa? parti- 

 colored black and Avhite. "Legs castaneous, except the last joint, Avhich is 

 piceous red. Intermediate prolegs not prominent, but visible by their trans- 

 verse oval coronets of hooks. Spiracles eighteen, in the usual order. Anal 

 clappet perpendicular. The larva3 are found in their cases Avith the head 

 toAvards the top, the case having a cylindrical hole above as Avell as bcloAv, 

 but the upper one closes naturally by the Aveight of the case Avhen hanging. 

 All the dead larvas were found head uppermost, and never towards the 

 lower orifice. 



Pupa of the male head downwards, and half exserted Avhen the insect is 

 ready to disclose the moth. 



Put a (quantity of the pods on the arbor vita; in May. Found the larvaj 

 and their pods, the latter three eighths of an inch long, on the arbor vitas 

 and adjacent apple trees, July 20, 1850. 



Limacodes scapha Ilarr. [PI. in, fig. 8.] 



In Sept. and Oct. 1827, 1 found on the apple tree some small larva;, sim- 

 ilar in form and color to the one figured, Avhich came from the black Avalnut 

 tree. They were deep green above, the lateral angles and margins reddish; 

 pale green beneath; feet (if any) retractile. Cocoon dense, almost parch- 

 ment-like. 



