1528 THE BUTTERFLIES OF NEW ENGLAND. 



broad as the base of the antennae. Antennae witli tlie hinder edge of the base a little in 

 advance of the middle of the summit, tlieir interior bases sep.irated by two and a half 

 times tlie diameter of the antt-nnal base; tiie wliole antenna nearly as long as tlie ab- 

 domen, composed of 30 (<?) or 33 ( ? ) joints, of wliicli 17 (<J) or Ifl (?) form the 

 club, which is a little more than one-fourth of the wliole antenna, bent in a curve a 

 little beyond its origin at much more than a right angle; it increases rather rapidly and 

 regularly in size as far as the bend and then continues of the same width, equal 

 to the length of four consecutive joints, the last four joints rapidly diminisliing to a 

 well rounded, somewhat conical tip; the whole club is compressed from in front and a 

 little downward, backward, flattest in front; the joints in the middle of the stalk are 

 about two and a lialf times longer than broad. Palpi comparatively slender, nearly 

 twice as long as tlie eye, very heavily clotlied with a loose mass of very long liairs and 

 scales, out of which the small apical joint, clotlied only with recumbent scales, pro- 

 trudes by its tip only, but the looseness of the clothing of which permits of seeing the 

 whole; basal joint small, globose, broader tlian long, very full anteriorly at the tip, 

 where it is very nearly as broad as the broadest part of the middle joint, rather more 

 than one-third the length of the middle joint; middle joint tumid, cylindrical, straight, 

 fully two and a half times longer than broad, the base broadly rounded, the tip snb- 

 conical, the apical joint perched on its summit, and inclined a little forward ; last joint 

 minute, slender, subovate, three and a half times longer than broad, its length about 

 three-fourths the length of the middle joint. 



I'rothoracic lobes small, appressed, laminate, the edge channelled ; viewed from the 

 front pretty regularly ovate, its height nearly two-thirds its breadth, the lower outer 

 edge largely and roundly excised, the length about two-thirds the diameter of the eye. 

 Patagia large, broad, the posterior lobe as long as the rest, broad, scarcely tapering, 

 broadly rounded at tip, about three times as long as broad, the whole piece as long as 

 the space between the hinder edge of the eyes. 



Fore wings (41 : 9) trianiiular, less than twice as long as broad, the inner margin 

 distinctly longer than the outer ; costal and inner margin straight, the outer margin 

 gently and regularly arcuate. Costal margin thickened in its basal half or less, the 

 costal nervure terminating about halfway between the middle of the wing and the end of 

 the cell ; first, second and third superior subcostal nervules equidistant, parallel, the first 

 arising opposite a point midway between the first and second median nervules, and 

 nearly at two-thirds the distance from the base to the apex of the cell ; the fourth 

 superior subcostal nervule, which strikes the apex of the wing by its apical arcuation, 

 arising just before the tip of the cell, midway between the origin of the third and the 

 basal angle of the inferior nervule which is subobsolete; the vein crossing the cell is 

 marked only by the incrassatiou and angulation of the opposing nervules; second 

 median nervule arising opposite a point midway between the base of the second and 

 third superior nervules, and the first median nervule a little nearer the base of the wing 

 than the last; internal nervure sligiit, straight, upturned toward its tip, which ends in 

 a mere thickening of the membrane. 



Hind wings rounded, triangular, the costal longer than the inner margin, the upper 

 outer angle subrectangular, the anal angle broadly rounded, the outer margin varying 

 considerably in different species, but in all more or less and pretty regularly arcuate; 

 inner margin moderately arcuate; the basal lobe of the costal margin is larger than in 

 the allied genera; the relation of the costal, subcostal and median nervures and their 

 veins are almost precisely as in Pholisora and the cross vein is indicated only by a 

 slight spur on the opposing nervures, indicating that it is parallel to the outer margin ; 

 internal nervure only a little shorter than the submedian. 



Scales enclosed in the costal fold of the fore wing of the male of two sorts : one well 

 rounded, very long ovate, the other distally tapering, apically flagellate; sometimes 

 other kinds are added. 



Le gs 2, 3, 1, clothed as in Thanaos. Femora 2, 1, 3 (<J), 2, 3, 1 (?) ; tibiae 2, 3, 1; 

 tarsi, 2, 3,1; fore femora scarcely longer than the hind in the $ , scarcely shorter than 

 they in the ?, in either aljout two-thirds tlie length of the middle pair; fore tibiae 



