216 PROCEEDINGS OF THE ACADEMY OF 



Eustales. 



Fore wings with two subcosto-marginal nervules, given off very near the 

 posterior-superior angle of the disk, the stalk of the second almost in contact 

 with that of the apical branch near their origins. The apical and post-apical 

 arise together at the angle of the disk, the former being furcate near the tip, 

 sending a nervulet to near the costa. The disco-central is given off from the 

 middle of the discal. Median four-branched, the medio-superior on an ex- 

 tremely short, vertical peduncle ; the posterior arising at a point somewhat 

 behind the costal origin of the first marginal branch. 



In the hind wings the costal nervure is furcate at the tip of the wing ; the 

 oblique intercostal branch is long and exterior to the cell, and the subcostal 

 simple and attenuated at the base. The median four-branched, the superior 

 which continues the curved discal nervure, almost in actual contact with the 

 following branch. The hind wings are broader than the fore wings, and about 

 one-fourth less long. 



Head with ocelli, rather remote from the eyes ; face rounded, smooth, and 

 rather narrow. Eyes large, round and prominent. Labial palpi rather thick, 

 curved and ascending to about the middle of the face ; second joint thickened 

 beneath with scales ; the third rather smooth, elongate ovoid, and about one- 

 half as long as the second. Maxillary palpi rather long, curved and ascend- 

 ing, their tips nearly equal to those of the labial palpi, roughened with scales, 

 distinctly three-jointed. Antennae about as long as the body, with triangular 

 patches of shining scales along the stalk above ; inserted above the middle of 

 the eyes, with bases contiguous and microscopically pubescent beneath. 

 Tongue scaled at base and when unrolled, does not extend beyond the tips 

 of the labial palpi. No abdominal apron (tablier) perceptible. The posterior 

 coxae rather short ; the length of the tibiae and tarsus, of the hind pair of legs, 

 equal to that of the entire body. 



E. Tedyuscongalis . Fore'wings ochreous yellow, paler along the 

 costa, dusted somewhat with reddish fuscous, with a moderately broad white 

 band from the costa near the tip, curving toward the base of the wing in the 

 submedian interspace, where it becomes rather broader, to the middle of the 

 inner margin. Behind this, near and parallel to the hind border, is a narrow 

 white band, not extended to the costa nor inner margin, and bordered exte- 

 riorly with a blackish-brown line. The exterior border of the wing is paler 

 yellow than the general hue. Hind wings white, with an oblique fuscous 

 band above the middle, tapering to the external margin ; a broad one of the 

 same hue near the hinder margin, having a pale ochreous-yellow spot at each 

 end, and margined behind with a white streak having an external delicate black 

 line. The terminal margin pale ochreous-yellow, with four black points hav- 

 ing ochreous-yellow pupils, arranged along the margin from the middle of 

 the wing toward the exterior angle. 



Lake Teedyuscong, Pike county, Penna., in the latter part of June or early 

 ia July. 



The ornamentation of this insect resembles in a remarkable degree that of 

 Oligostigma j uncealis Gu. ; it cannot, however, be a member of the same 

 genus. 



Hydrocampa? Latreille. 



Guenee, vol. viii. 273. 



Fore wings with one subcosto-marginal from near the superior angle of the 

 disk ; the apical branch, at its basal third, gives off a branch to the costa, and 

 somewhat behind its apical third becomes furcate ; the post-apical arises at 

 the angle, and the discal nervule on the costal side of the cell. Median four- 

 branched ; the superior on a very noticeable peduncle ; the posterior remote 

 from the penultimate, which together with the other branches are aggregated 

 at their bases. 



[June, 



