Lithosiidae 



The type of this species, which I have received in recent 

 years from Arizona and in great abundance from the State of 

 Chihuahua in Mexico, is figured upon our plate. 



Genus PYGOCTENUCHA Grote 



A small genus containing three species, two of which are 

 found within the limits of the United States. They may be 

 discriminated as follows: 



1. Uniformly black, collar-lappets and tip of abdomen ochre- 



yellow ; size small funerea Grote 



2. Head, thorax, and abdomen black shot with brilliant blue; 



fore coxae, tegulae, patagia, and anal tuft scarlet, the 

 latter white in the female ; fore wings black shot with 

 green; hind wings black shot with blue. Fully one- 

 third larger than preceding species terminates Walker 



(1) Pygoctenucha funerea Grote, Plate XIII., Fig. 40, $. 

 (The Funereal Lichen-moth.) 



The specimen figured on our plate was kindly loaned for 

 the purpose by the Academy of Natural Sciences of Philadelphia. 

 The insect occurs in New Mexico. 



(2) Pygoctenucha terminalis Walker. (The Blue-green 

 Lichen-moth.) 



Syn. harrisi Boisduval; pyrrhoura Hulst; votiva Henry Edwards. 



This insect, referred by Hampson to his genus Protosia, 

 must be placed here, Pygoctenucha having priority over 

 Protosia, which falls as a synonym. 



Genus LERINA Walker 



Only one species belongs to this genus. It was originally 

 named by Walker, and made the type of the genus. Subse- 

 quently it was redescribed by Boisduval as Ctenucha robinsoni, 

 under which name it has 

 passed current in American 

 collections until recently. 



(i) Lerina incarnata 

 Walker. (The Crimson- 

 bodied Lichen-moth.) FIG. 57. Lerina incarnata, $ . f 



Syn. robinsoni Boisduval. (After Hampson.) 



The head, tegulae, and patagia, with the terminal half of 

 the abdomen are deep crimson. The rest of the body and 



III 



