Notes on JVbrlh American Lepidoptera. 91 



tail coverts dark brown ; quill feathers brown ; abdomen and under tail 

 coverts crossed with alternate bars of black and white ; upper mandible 

 brown, brighter on the culmen, under mandible yellowish; tarsi and toes 

 hazel brown. 



Length about 5£ in. ; wing 2\ ; bill f ; tarsus \\. 



Habitat. Costa Rica, Talamauca. Type in National 

 Museum. 



Remarks. Compared with P. albigularis this species dif- 

 fers in its ash colored head, more deeply colored chestnut 

 breast and in not having a white throat ; above it resembles 

 P. rubra but the head in that species is darker, below they 

 are quite unlike, as the entire under plumage of P. rubra is 

 chestnut-red. 



X. — Notes on North American Lepidoptera. 



By H. K. MORRISON. 

 Read Jan. 7, 1875. 



Family BOMBYCIDJS. 

 Edema, Walk. 



Ocelli absent. Eyes naked, unlashed. The antennae of the female sim- 

 ple. The palpi stout, finely clothed, exceeding the front; the first joint 

 of the usual form ; the second long, flat, rectangular, and truncate at the 

 extremity ; the third, in the Texan species hidden in the villosity of the 

 second, in albifrons short and slight, but perceptible. 



The front rounded, but the frontal hairs converge forming an obtuse 

 projection; the villosity above the antenna? elevated, forming a triangular 

 projecting hood over the vertex. The collar circular, nearly flat, sur- 

 rounded and limited above by the pterygodes, which are well defined, tri- 

 angular, closely scaled and separated by the depressed dorsal portion of 

 the thorax. 



The prothoracic tuft absent, the metathoracic tuft present although 

 low and rounded. The abdomen smooth, heavy, cylindrical, truncate and 

 untufted. 



All the tibiae unarmed and clothed with long thin hair. 



The anterior wings comparatively broad, with rectangular apices ; the 

 posteriors rounded. 



