NATURAL SCIENCES OF PHILADELPHIA. 339 



the tibia? and tarsi are incompletely annulated with black and white alternately, 

 but in sections of unequal value. 



Eab. " Mexico, near Vera Cruz." Win. H. Edwards. 



45. Thecla yojoa, nov. sp. 



Female. Upper surface, brownish, bluish gray on the hind portion of the 

 secondaries ; these are margined by a narrow black terminal line, above which 

 towards the anal angle are four rounded black spots of which the third is the 

 largest, and surmounted by a yellow crescent; a long tail proceeds from the 

 extremity of the first median veinlet. 



Under surface pale brownish-gray; a transverse, nearly straight line runs 

 across the primaries from the costa to the first median veinlet, midway be- 

 tween the cell and the outer margin ; the area beyond this is irrorated with 

 whitish, upon which is superimposed a double row of marginal spots; also a 

 white discal streak. Secondaries with a similar transverse line and discal 

 arc, the first broken into three portions, each of which forms an almost right 

 line; the upper is equal to the other two combined, and which are obliquely 

 below and interior to it, as is also the lower to the middle one ; an indistinct 

 series of marginal ocelli, covered by a continuous row of lunula?, the first and 

 third from the anal angle are dark brown, and surmounted by a yellowish 

 lune. Expanse 1*13 inches. 



Antennae ringed with black and white; club tipped with ferruginous. 



Hub. "Mexico, near Vera Cruz." Wm. H. Edwards. 



46. Thecla istapa, nov. sp. 



Female. Upper surface brownish, bluish-gray on the hind portion of the 

 secondaries ; these are margined by a narrow black terminal line, above which 

 towards the anal angle are four rouuded or luriulate black spots, of which the 

 last two are the largest ; a slender tail proceeds from the extremity of the first 

 median veinlet. 



Under surface pale brownish-gray ; an obsolete double row of brownish lu- 

 nules, separated by whitish crescents along the outer margin of the prima- 

 ries ; within, a curved row of six dark brown spots, edged exteriorly with 

 white. 



Secondaries have a brown discal arc, a dark brown spot within, and another 

 above the cell, both ringed with white ; beyond tVie cell a sinuated row of 

 dark brown streaks and dashes, edged posteriorly with white ; following these 

 is a series of white sagittate marks, and a marginal row of indistinct brown 

 ocelli, ringed with white. The second from the anal angle is black, covered 

 by a luteous crescent ; there is also a small black spot on the anal lobe, simi- 

 larly surmounted. Expanse "85 inch. 



Body and antenna? as in Th. yojoa. 



Hah. "Mexico, near Vera Cruz." Wm. H. Edwards. 



Very closely allied to the preceding species, especially upon the upper sur- 

 face; underneath, however, the differences are considerable. 



47. Erycides lilea, nov. sp. 



Upper surface shining blue-black, irrorated with lustrous green particles 

 over the basal area and the body ; a large fulvous red costal spot on the pri- 

 maries, cut by the sub-costal vein ; outer margin of both wings, including the 

 anal angle of secondaries, fringed with white hairs, especially long upon the 

 latter. 



Underneath as above, but destitute of the green irrorations. Expanse 2-25 

 inches. 



Body blue-black, the palpi, excepting the terminal joint, and a collar, ful- 

 vous-red; antenna? black. 



Var. a ; the abdominal margin is fringed with dark brown hairs, encroach- 

 ing slightly upon the white anal cilia?. 



Hub. "Mexico, near Vera Cruz." Wm. H. Edwards. 



A local race of the well-known Erycides palemon. 



1866.] 



