NATURAL SCIENCES OF PHILADELPHIA. 203 



Contributions to American Lepidopterology. No. 5. 

 BY BRACKENRIDGE CLEMENS, M- D, 



PYRALID^. CRAMB1TES. 



Crambcs Fabricius. 



C. agitatellus . Head and thorax pale luteous ; labial palpi somewhat 

 tfuscous, white beneath. Pore wings ochreous, tinted with orange, beneath 

 the fold and toward the tip, with a broad silvery white median streak divided 

 longitudinally by a chrome yellow line. The costa is dark fuscous from the 

 base, and beyond the middle are two oblique fusco-luteous lines, the first of 

 which is joined at an angle by another in the middle of the wing. On the 

 middle of the apical third is a silvery white patch, another in the costa above 

 it, a small one in the middle of hind margin, and one at the tip, margined 

 internally by a small fuscous patch. Along the nervules, above and beneath 

 the middle of the wing, are fuscous lines containing dull silvery scales, with 

 a subterminal angulated silvery line, and a few marginal dots beneath the 

 middle of the wing. Cilia silvery-hued. Hind wings whitish. 



C. laqueatellus. Head luteous. Thorax and labial palpi fuscous, the 

 latter whitish beneath. Fore wings with two silvery white streaks, separated 

 by a fuscous streak ; the upper silvery streak is margined on the costa with 

 fuscous, and the lower one, which extends beyond the apical third, is edged 

 on the fold by the same hue. Beneath the fold, the wing is pale yellowish 

 with a fuscous streak along submedian nervure. The apical portion of the 

 wing is tinted with ochreous-yellow, in which the nervules are streaked with 

 silvery ; on the costa, near the tip, is an oblique silvery streak, dark mar- 

 gined on both sides. The subterminal silvery line is much angulated, and 

 beneath the middle of the wing, is a large marginal whitish patch, containing 

 black lines on the nervules. The tip of the wing is silvery, with an ochreous- 

 yellow patch. Cilix silvery-hued. Hind wings pale fuscous, cilia white. 



C. involutellus. Labial palpi dark fuscous, whitish at the base be- 

 neath. Head and thorax dark yellowish with a brassy hue. Fore wings 

 fusco-ochreous, with a brassy lustre, with a median silvery white streak 

 pointed behind and extended nearly to the hind margin. The subterminal 

 line is silvery, with a short white streak on each side of it on the costa. At 

 the tip is a small white spot, and on the hinder margin beneath the middle is 

 a whitish patch, containing marginal black dots. Cilia silvery-hued. Hind 

 wings pale bluish white. 



In some specimens the general hue of the fore wings is paler than the 

 above. 



C. camurellus. Labial palpi fuscous, whitish above. Head whitish. 

 Fore wings ratherj pale, dull reddish fuscous or pale ochreous, dusted with 

 fuscous, with an irregular patch of fuscous scales on the middle of the wing, 

 where it is crossed by an angulated, rather ferruginous line, and one of the 

 same hue near the hinder margin, edged externally by dull silvery. Th* 

 nervules are faintly marked by silvery lines, and on the hind margin is a 

 row of black dots. Cilia dark but silvery-hued. Hind wings grayish. 



C. luteolellus. Labial palpi pale yellowish, dusted externally with 

 fuscous. Head, thorax and fore wings yellowish white, sometimes dusted 

 with fuscous, with a patch of fuscous scales on the end of the disc, and an 

 irregular line of the same hue near hinder margin. The hind margin marked 

 by a slender dark brown line ; cilia yellowish white. Hind wings fuscous. 

 cilia whitish. 



I860.] 



