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: 
i. Uniformly black, collar-lappets and tip of abdomen ochre- 
yellow ; size small... funerea Grote 
n. 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. terminalis 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. 
(1) Lerina incarnata 
Walker. (The Crimson¬ 
bodied Lichen-moth.) Fig. 57 .—Lerina incarnata, $ . 
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 
IU 
