NATURAL SCIENCES OF PHILADELPHIA. 357 



The larva binds together the terminal leaves of Spiraea. It is pale green, 

 touched with yellowish at the junction of the segments; head and shield 

 black. The larva may be taken in the middle of June. 



E. versicoloran a. Fore wings yellowish, varied with short, dark brown 

 striae, and shades of the same hue, overlaid with testaceous scales. In the 

 middle of the wing is a dark brownish shade, indicated on the middle of the 

 costa by a nearly square spot. The oblique subterminal band is well indicated, 

 does not reach the costa, and the cilia opposite to it on the hind margin are 

 dark broicn. At the tip is a dark brown spot, and the cilia of the tip likewise 

 dark brown. Hind wings fuscous. 



E. inornatan a. Head and thorax ochreous brown or dark reddish brown. 

 Fore wings whitish testaceous or brownish testaceous, somewhat striated, but 

 without distinct bands. The costa is ferruginous, with rather faint, pale 

 colored streaks. The apical portion of the wing is either brownish ferruginous 

 or testaceous brownish, with one or two faintly indicated lines. Hind wings 

 reddish fuscous or yellowish white, and slightly fuscous along the hind 

 margin. 



The larva has the head and cervical plate colored black. The body, which 

 is white at first, becomes pale green, with rather pale, reddish brown bands 

 produced on the vascular line, and striped on the sides with the same hue ; 

 head, dark reddish brown. It inhabits, in May, a web woven between applied 

 leaves of white oak. The pupa is contained in a flocculent silky cocoon, and 

 is without dorsal spines. The pupa case remains in place after the escape of the 

 imago, which appears about the middle of June. 



E. fasciatana. Fore wings with a blackish brown basal patch and a 

 broad, nearly square, central fascia of the same hue, separated by a broad 

 silvery white band, having a few dark brown dots on the costa, and a single 

 line of the same hue from the inner margin to the middle of the wing. The 

 oblique band near the tip, runs from the costa to the inner margin, is dark 

 brown, overlaid with testaceous scales, and is bordered on each side by a stripe 

 of dull silvery scales. Costa with geminated white streaks from the middle to 

 the tip. Hind wings dark fuscous. 



Variety ? Rather paler brown than the above, with similar markings, but 

 the white band, near the base of the fore wings, is tinted with pale brownish, 

 and is striated with dark brownish. 



Hedya Hubner. 



Fore wings, costa regularly and slightly arched; tip rather acute, but not 

 produced; hind margin slightly concave, inner margin rounded; disk with 

 secondary cell. Hind wings broader than the fore wings ; apex obtusely pro- 

 duced ; hind margin concave beneath the tip. The branches of the subcostal 

 are connivent ; the upper branch of the median vein is forked, rather remotely, 

 from the insertion of the medio-discal nervule, and the discal vein is nearly 

 straight. 



Head rough. Ocelli small. Antennas setaceous, pubescent beneath. Palpi 

 equal to the face, slightly ascending; middle joint thickened with scales to- 

 wards its end, particularly beneath, truncate ; terminal joint slender, drooping, 

 minute, and is seen in the lower part of the scales of the middle joint. Tongue 

 rather longer than the palpi. 



H. Pyrifoliana. Fore wings with a dark brownish gray basal patch ; 

 broadly white in the middle of the wing, with the patch produced towards the 

 apex, and sometimes bluish pale gray and indistinct. Exterior to the middle 

 of the wing are dull, bluish, transverse streaks; and near the apical portion of 

 the hind margin and the inner angle, are short black streaks or spots. The 

 apical portion of the wing has, more or less, the hue of the base. Costa with 



I860.] 24 



