1S64.] 
871 
Contributions towards a Monograph of the genus CROCOTA. 
BY TRYON REAKIRT. 
1. C. choriona, nov. sp. 
Anteiinse, loug, fulvous; head and thorax, fulvous; abdomen, pale 
ferruginous, with an obsolete row of dorsal black dots ; legs, fulvous. 
Anterior wings, dark brown, shading into a luteous fawn color aloug 
the costa and outer margin ; a black discal ocellus, with a white pu¬ 
pil ; an indistinct sub-marginal, transverse, macular brown line, dark¬ 
est at its extremities; two irregular yellowish white spots on the disc, 
the inner and largest in the upper centre of the medio-posterior inter¬ 
space, the outer, midway between it and the outer margin. 
Posterior wings, rose color; a large black discal dot, and broad black 
margin, terminating just before the outer angle; fringes, rosy. 
Under surface, rose color, black discal spots on both wings, with a 
broad brown marginal band on the posteriors. Length of body, Sf 
lines; of the wings Ilf lines. 
Philadelphia. 
Although the number of true species contained in this genus is com¬ 
paratively limited, and their varieties very numerous, yet the ornamen¬ 
tation of the above species is so entirely different, from those with 
which we are already acquainted, that I can have no hesitation in re¬ 
garding it as new. In common with C. qainaria Grrote, it possesses 
irregular whitish marks on the anterior wings, but with this difference, 
that qumdria carries five, whilst choriona has but two. 
2. 0. nigricans, nov. sp. 
Male. Antennae, short, black; head, thorax and abdomen, tawny ; 
the latter with a row of black dorsal dots; legs, fawn colored. 
Above, superior wings, fawn color, an indistinct discal spot, and 
sub-marginal line, as in choriona. Inferior wings, blackish brown, 
showing faintly a large black discal dot; costa, roseate; ciliae on the 
superior wings fawn-color; on the inferiors, fulvous. 
Under surface, superior wings marked as above but more distinctly; 
rosy, becoming yellowish on the inner margin. Inferior wings, rosy; 
a narrow fulvous line on the anal and outer margins, inside of which, 
a very broad brown sub-marginal band; a large black discal dot. 
Length of body 3 lines; of the wings 9 lines. 
