NATURAL SCIENCES OP PHILADELPHIA. 335 



both wings heavily powdered with radiating black atoms ; excepting this, the 

 secondaries are immaculate ; fringe brown, darkest on the primaries. ^ 



Underneath the primaries have a trapezoidal brownish space at their apex, 

 behind winch there is a transverse band, widening upon either margin. 

 Secondaries have a very broad dark griseous-brown terminal band, commenc- 

 ing just before the apex, and ending at the submedian nervure; there is also 

 a triangular baseo-cstal patch, divided into three parts by white lines, the 

 two outer are sometimes coalescent, and an oblong bar extending down the 

 submedian vein, seemingly composed of three sections, of which the basal is 

 linear; the second and "largest, and the third, somewhat less, are rounded, 

 quadrangular and triangular in different individuals ; the interior portion of 

 the wing the area contained within these markings is obscured with dusky 

 atoms ; the abdominal margin is aligned with brownish griseous. 



Body above brownish black, beneath whitish ; antennae above dark brown, 

 incompletely annulated with white, underneath paler, club ferruginous ; alar 

 expanse 1 1'15 inches. 



Female. Pearly white ; fore wings pearly white ; a brownish black space 

 at the apex, interior to this, two transverse bands ; and a submarginal row 

 of connected lunulse, all of the same color. Hind wings with a narrow termi- 

 nal black line, and a submarginal lunnlate band usually reduced to two 

 luuules on the middle of the outer margin, sometimes, though rarely, com- 

 plete ; short black lines run up the veins from the outer margin ; fringe brown 

 upon the fore-wings, soiled white upon the hind wings. 



Underneath as in the male, the fore wing markings much plainer ; those 

 upon the secondaries very indistinct, and the terminal border is considerably 

 widened ; body and antennas the same ; alar expanse 1-37 1*45 inches. 



Hub. " Mexico, (near Vera Cruz)." Win. H. Edwards. 

 Orizaba. (Coll. Try on Reakirt.) 



35. Carcharodus mazans. 



Upper surface purplish brown, strewn with grayish white points ; three 

 transverse dark brown bands extending from the primaries' costa to the ab- 

 dominal margin of the secondaries ; the first is at two-fifths the length of the 

 wings ; the second and broadest at four fifths, and the third is terminal. In- 

 terior to the second are three small white spots ; two, close together, are near 

 the costa, the other slightly below the middle ; fringe brown ; wings strongly 

 scalloped and indented ; expanse 1 inch. 



Underneath brown ; the markings reproduced very indistinctly ; body and 

 antenna? brown. 



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



36. Erbsia sydra, nov. sp. 



Wings of the shape of E. Otanes, Hewits. Upper surface dark brown ; base 

 of both wings reticulated with indistinct rufous lines; three incomplete rufous 

 lunulate lines extending a short distance only from the inner margin of the 

 secondaries ; on the primaries a small yellowish white spot near to awd above 

 the middle of the outer margin, between which and the inner angle there are 

 two indistinct rufous yellow spots; expanse 1-25 inches. 



Underneath dull umber-brown, with a purplish brown border on the outer 

 margin ; the spots of the upper side reproduced, and dark brown waved lines 

 towards the base. Secondaries paler, shaded with grayish purple and pur- 

 plish brown ; several waved lines toward the outer n;argin, above which a 

 series of indistinct ocelli, followed by a row of connected lunula?, between 

 which and the base are numerous zigzag and curved lines ; there are but slight 

 chromatic variations over the surface ; prominent shadings only on the costa, 

 near the apical angle and along the outer margin. 



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



Related to E. oiunes, Hewitson. 



1866.] 



