lOlU THE BUTTERFLIES OF NEAV ENGLAND. 



nel. Eyes of moderate size, pretty full, nakeii Antennae inserted with their hinder 

 border in the middle of the summit, separated from each other by a space equal to 

 twice the diameter of the second antennal joint; of the length of the abdomen, com- 

 posed of thirty joints of which from eleven to thirteen form a gradually increasing 

 club, the limits of -which are a little indetlnite; it is cylindrical, scarcely depressed, 

 twice as broad as the stalk, equal for most of its length, five or six times as long as 

 broad, the tip bluntly conical, two joints only entering into the diminution of size. 

 Palpi very slender, about half as long again as the eye, the last joint more than half 

 as long as the penultimate, and clothed only with recumbent scales, while those of 

 the other joints are very abundant, rather long and projecting, although destitute of 

 any long fringe of hairs and scales. 



Patagia long and slender, arched a little and slightly tumid, more than three times • 

 as long as broad, the basal two-thirds tapering, the apical third equal, one-third as 

 broad as the base, the tip blunt; inner margin of the whole straight. 



Fore wings (39 : 24) two-thirds as long again as broad, the costal margin slightly and 

 regularly convex, the angle abrupt, rectangular, the outer margin roundly bent a 

 little just below the middle, the two portions nearly straight, the inner margin 

 straight, the angle rounded off. Costal nervure terminating on the margin opposite 

 the extremity of the cell ; subcostal nervure with three superior branches, the first 

 arising just before the middle of the outer two-thirds of the upper margin of the 

 cell; the second about midway between the origin of the first and the tip of the cell; 

 the third as far beyond the apex of the cell as the second before it, forking rather 

 before its middle ; the main subcostal branch scarcely bent upward between the apex 

 of the cell and the base of the third branch ; veins closing the cell transverse, inde- 

 pendently arcuate, distinct only in the third of each next the main veins. Cell 

 half as long as the wing and four times as long as broad. 



Hind wings with the costal margin somewhat convex on the basal third, beyond 

 straight, the outer margin with the upper half strongly rounded, the lower half 

 slightly convex and continuous with the upper half, the border produced considerably 

 just above the middle and particularly in the $ ; inner margin gently convex, the 

 angle broadly rounded off. Submedian nervure terminating at the anal angle ; internal 

 nervure terminating in the middle of the outer half of the inner margin. 



No androconia. 



Fore tibiae about five-sixths the length of the hind tibiae ( ? ), or scarcely shorter 

 than they (J"), the tarsi scarcely shorter than the tibiae, particularly in the female; 

 forelegs similarly developed in the two sexes, excepting that the last tarsal joint of 

 the male is only armed with a median, apical, slightly curving, rather stout and taper- 

 ing spine, instead of agreeing in structure with the other legs as in the female ; in 

 other respects, and with perhaps the exception of having rather fewer spines beneath, 

 these legs agree with the others. Femora furnished beneath with a fringe of long 

 hairs. Middle tibiae scarcely shorter than the hind pair, both entirely devoid of 

 spurs and spines. First joint of the middle and hind tarsi considerably gibbous in 

 the male ; in the other sex and in the fore legs of both it is of the same diameter as the 

 other joints, nearly or quite equal to all the others combined; the second, third and 

 fourth are equal and the fifth rather longer than the third and fourth together; 

 joints armed beneath rather feebly with short and rather slender spines not 

 crowded together nor present on the sides, an apical pair on each joint scarcely 

 longer than the others, the whole under surface scaled ; claws very small and slender , 

 not curving much but somewhat bent near the base, tapering, finely pointed; parony- 

 chia single, quite slender, equal, finely pointed, fully as long as the cl.aw, and straight; 

 pad scarcely perceptible. 



Male abdominal appendages with the upper organ forming a deeply and not very 

 narrowly liut abruptly notched hood projecting above; lateral arms much as in Chry- 

 sophanus. Clasps stout but very short, bullate at base, abruptly narrowing to half the 

 width on apical third. 



Egg. Very oblate spheroidal in shape, about twice as broad as high, the summit 



