1424 THE BUTTERFLIES OF NEW ENGLAND. 



ably and equally surpassing the front of the eyes yet not very tumid and not falling 

 off behind, but connected with the vertex by a common and slight tumosity and sepa- 

 rated from it by a straight, scarcely impressed line joining the raiildle of the bases of 

 the antennae; the front margin scarcely convex excepting toward the sides, very 

 sliglitly and equally emarginate; margin of the sides well rounded off in front, behind 

 reaching the outer edge of the antennal base and angulated ; rather more than twice 

 as broad as long ; vertex rather larger than the front, scarcely tumid and yet elevated 

 equally and very slightly above the level of the eyes, sliglitly hollowed, like the front, 

 in the immediate vicinity of the eyes, its posterior border somewhat convex, a little 

 bent in the middle, marked by a slightly impressed sulcation. Eyes large, full, nearly 

 round, naked; antennae inserted in shallow pits, their posterior bases slightly in 

 advance of the middle of the summit, their interior bases separated from each other 

 by nearly twice the diameter of their basal joints; exclusive of the crook about one- 

 third longer than the abdomen, the whole composed of 53 joints of which 30-31 form 

 the club, which is scarcely more than half as long as the stalk and bent somewhat 

 beyond the middle at about the 3G-37th joints ; the club increases very gradually and 

 regularly in size up to where the curve commences and is about as broad as the length 

 of one and one-half of the joints; it tapers nearly as gradually, the joints being also 

 proportionately shorter and, excepting the conical apical joint, is as large at the tip as 

 the stalk ; the joints in the middle of the stalk are scarcely three times as long as broad. 

 Palpi very short and very stout, somewhat longer than the eye, heavily clothed with long 

 and erect scales, beyond which nearly the whole of the stout but minute apical joint 

 projects, clothed only with recumbent scales; basal joint small, tumid, considerably 

 prolonged at the tip on the inner side into a bulbous projection which seems to sup- 

 port the sides of the tongue; second joint tumid, ovate, scarcely more th.an twice as 

 long as broad, more than twice as long as the basal joint, straight or nearly so, 

 approaching a conical form on its apical third, the apical joint inserted near the 

 middle of the tip but somewhat on its anterior face and so projecting forw.ard, minute, 

 slender, cylindrical, conical at tip, twice as long as broad and fully half as long as the 

 breadth of the middle joint. 



Prothoracic lobes small, strongly appressed, laminate; when viewed from the front 

 suboval, broadly rounded interiorly, bluntly pointed exteriorly, more than twice as 

 long as t)road, nearly as long as the sliorter diameter of the eye. Patagia large, closely 

 resembling that of the preceding genus, somewhat shorter than the breadth of the 

 head. 



Fore wing (41 : 3) shaped almost precisely as in Achalarus. Costal margin thick- 

 ened in its basal half; costal vein terminating shortly before the tip of the cell; first 

 superior subcostal nervule arising opposite the second median nervure, just before the 

 middle of the apical two-thirds of the cell ; the sul)cost.al nervures similar, excepting 

 that the fourth is sinuous and strikes the apex of the wing, and they originate at sub- 

 equal intervals, the widest space occurring between the second and third; the origin of 

 the fourth superior and of the first inferior nervules very much as in Achalanis; first 

 median nervule arising near the middle of the basal half of the wing; cross vein 

 obsolete excepting at its extremities, running obliquely, subparaUel to the extreme 

 lower portion of the outer margin ; internal nervure very short, running by an upward 

 curve into the submedian; cell about six times as long as broad, and more than two- 

 thirds as long as the wing. 



Uind wings shaped much as in Achalarus, but more uniformly rounded; the outer 

 margin entire, produced in the submedian region ; the whole wing scarcely longer 

 than broad ; the hind margin is broadly angulated at the submedian nervure, more 

 strongly in the male than in the female; and the internal margin is only roundly and 

 gently bent at the tip of the internal nervure. Costal, precostal and subcostal nerv- 

 ures much as in Achalarus, but the costal and subcostal not completely consolidated 

 at their point of parting, the subcostal forking at slightly more than one-third way to 

 the margin of the wing; first submedian nervule originating as far before the sub- 

 costal forking as its second branch beyond it; the cross vein entirely obsolete, its 



