168 RHOPALOCERA. 
bands of both wings are almost obsolete, giving place to a nearly uniform tawny colour ; 
other specimens have the two upper black bands on the primaries, while the third is 
absent or nearly so; from this we have every gradation to the deep-black bands mentioned 
in the description above. The females are of a lighter and duller tawny ; and their 
transverse bands are less strongly indicated. This species ranges southwards from 
Mexico to Pera and the Lower Amazons; but we are not acquainted with it from Brazil, 
though Doubleday includes that country within its range +. 
2. Colenis delila. 
Papilio delila, Fabry. Syst. Ent. p. 510°. 
Colenis delila, Butl. & Druce, P. Z. 8S. 1874, p. 350’; Strecker, Butt. N. Am. p. 108°, 
Colenis julia, Butl. & Druce, P. Z. 8. 1874, p. 850%. 
Alis elongatis fulvis, anticis marginibus maculaque ad cellule finem (fere obsoleta) nigris ; posticis limbo externo 
linea undulata triplici coloris ejusdem ; subtus dilutioribus ct nebulosis, angulis posterioribus albo punctatis, 
posticis striga subcostali flava, puncto coccineo ad cellule basin. 
Hab. Norta America, Texas *.—Mexico, Oaxaca (Fenochio); Britisq Honpuras, 
Corosal (foe), Sarstoon (Blancaneaux); GuateMALA, San Gerénimo and Zapote 
(Champion), Chuacus, Pacific coast, Polochic, and Motagua valleys (/. D. G. & O. S.), 
Choctum (Hague); Honpuras, San Pedro (G. M. Whitely); Nicaracua, Chontales 
(Belt, Janson); Costa Rica (Rogers, Van Patten?*); Panama, Veraguas (Arcé).— 
JAMAICA, 
There seems to be some obscurity as to the insect to which Fabricius’s name delila 
applies. Mr. Butler in his Catalogue of Fabrician butterflies identifies it with the 
Jamaican species ; and in so doing, we think, he is correct. Central-American specimens, 
however, are undistinguishable from the Jamaican; and therefore we follow Mr. Butler 
in his application of the name to this race. It occurs in Mexico, and is found abun- 
dantly southwards throughout our country. The primaries of this insect are much more 
elongated than those of the preceding species, and are somewhat falcate towards the 
apex. Individuals are subject to slight variation, some being of an almost uniform tawny 
colour, with the outer margins alone narrowly bordered with black, while in others the 
black lunule of the primaries mentioned by Fabricius is conspicuous. The series in 
our collection shows every intermediate between these two extremes, and this without 
reference to locality. In South America, ranging from Colombia to South-eastern 
Brazil, it is represented by a very close ally, C. yudia, in which there are two strongly 
marked black stripes on the primaries, and the secondaries are also more strongly 
bordered with the same colour. In Cuba a slightly modified race exists, the male of 
which corresponds accurately with Cramer’s figure of C. cillene. It is very similar to 
C. delila and C. julia, but differs from both in having a subtriangular black spot at the 
end of the cell, sometimes followed by a second and smaller one beneath and beyond it. 
The female of this is of a duller tawny colour, darker towards the base of the wings, 
