Entomological Contributions. 131 



ends of which converire to a point. The prolegs project laterally, 

 almost hidden by the hairs. Yentrally is a broad fuscous stripe. 



Eight or ten of the larva3 were collected at Bath (near Albany) 

 during the early part of September, feeding on ash {Fraxinus) ; 

 also by Mr. Meske, at Sharon Springs, on lilac {Syringa vulgaris). 

 When not eating, they usually occurred resting on and closely 

 appressed to a twig. The first transformation to a pupa was on 

 September 14th. The larva has a marked gastropachean aspect. It 

 is now for the lirst time described. 



Coelodasys unicornis (Sm.-Ahb.) Pack. 



Larva taken August 3d, feeding on hazel {Corj/lus Americana). 



Head large, ovate, green, with delicate red markings, and with 

 two black stripes on its front, as shown in Fig. 6 at B. Body with 

 the thoracic seccments ^^**- ^- 



ble brown dorsal stripe 

 extending from the head 

 to a long, fleshy, red-tipped spine on the fourtli segment, broadly 

 forked at the tip and bearing two hairs as at c. ' Abdominal seg- 

 ments reddish-brown, with fine interrupted markings. On the eighth 

 segment is a double setiferous hump, between which and the anterior 

 spine C is a white elongated spot as in F, centrally constricted, and 

 marked with pale red lines. On the eleventh segment is a smaller 

 hump, between which and that on the eighth is a Y-shaped white 

 spot (E), opening posteriorly. Terminal segment without feet, 

 forked, as at D, and usually elevated. 



As the larva eats into the margin of a leaf, it extends its body 

 along the excised portion following the curve, holding the edge 

 between its feet, and in this position, from its color and peculiar out- 

 line, it can with difficulty be distinguished from the leaf. 



The larva has also been fjund by me on choke-cherry {Prunus 

 Virginia/na\ apple, and on plum (July 28th, one-half inch in length). 



This species has proved very difticult to rear, as it usually dies 

 within the cocoon, before assuming the pupal state in the spring. 



Platycerura furcilla Packard. 



Larva eating tiie leaves of pine {Pinus strobiles). Length at matu- 

 rity one inch and five-eighths. Head round, of about the diameter 

 of the body, red witii conspicuous markings upon the front of lighter 



