3i0 THE BUTTERFLIES OF NEAV ENGLAND. 



clothed throunliout with long erect scales, particularly hjiig upon the upper surface of 

 the outer half of the middle joint, at the tip of ^yhich they overarch and are sepa- 

 rate from those of the terminal joint; middle joint furnished above and below 

 ■\vitli a few very lonsr and delicate hairs, the whole generally directed in a vertical 

 plane. 



Prothoracic lobes pretty large, tumid, the ends well rounded and of nearly uniform 

 size, broadly rounded above, scarcely four times as broad as long and fully as long as 

 high. Patagia scarcely twice as long as broad, rather small, well rounded and nearly 

 circular at the base, scarcely tumid, the posterior lobe slender, tapering, scarcely 

 curved and rather sharply pointed, the outer edge straight. 



Fore wings (38 :10) considerably more than half as long again as broad, the costal bor- 

 der pretty regularly and somewhat considerably bowed, the middle half nearly straight, 

 slightly excised near the base. Outer border very irregular, the portion above the 

 middle of the lower subcostal interspace straight or slightly concave, directed at au 

 angle of about llo° with the apical portion of the costal margin, the angle scarcely 

 rounded; from this point it suddenly recedes and passes in a strong, more or less 

 crenulate curve, more rapid al)ovc than beloAv, to just below the tip of the lowest 

 median nervule, where a second tooth is formed, much less conspicuous than the upper 

 and sometimes very slight: inner margin greatly sinuate, the basal half being regu- 

 larly and little convex, the apical half regulai'ly and considerably concave, the outer 

 angle rather broadly rounded oft". First superior subcostal nervule emitted a little 

 beyond the middle of the outer two-thirds of the upper margin of the cell ; the second 

 at about midway between the origin of the first and the tip of the cell ; the third as 

 far from the first as the fourth from the tip of the cell ; the fourth at a little more 

 than a third of the distance from the origin of the third to the tip of the wing ; the 

 .second inferior sul)costal nervule arises one-fourth way down the cell; the latter 

 nearly half as long as the wing and nearly three times as long as l)road. The middle 

 of the basal curve of the last median nervule connected with the vein closing the cell. 

 Hind wings with the costal margin a little swollen at the base, beyond slightly and 

 broadly sinuous ; the outer border more or less regularly crenulate or roundly produced 

 at the nervule tips, more considerably at the tip of the upper subcostal and especially 

 of the upper median nervule, in the last case produced to a greater or less extent as a 

 roundly tipped tail ; the upper half of the wing, between the two larger px'ominences 

 having a l)road and slight concavity, the lower half having a general straight, some- 

 times slightly concave course, at a general angle of about 135° with the upper portion ; 

 upper extremity of outer border a little excised ; lower extremity slightly produced 

 and rounded, the general direction of the apical part of the iimer border being at a 

 riglit angle or a little less with the outer border; inner border suddenly and con- 

 siderably produced at the base, beyond straight more than half way to the tip, 

 when it suddenly recedes and proceeds parallel to its first course. Precostal nervure 

 bent outM^ard, originating somewhat beyond the divarication of the costal and subcostal 

 iiervures. Cell closed by a very feeble vein. 



Fore legs small, cylindrical, clothed on either side with a spreading })ruslf of hairs, 

 much more thick in the male than in the female ; tibia fully half the length of the hind 

 tibia; tarsi nearly as long as the tibia, especially in tlie female; consisting either of a 

 single uniform joint with the faintest possible mark of division into sections (J) ; or 

 of five joints, the last four about equal, the first more than twice as long as the others 

 together ($), all armed beneath at the tip with a pair of very delicate and minute 

 opines, the outer joints devoid of scales between them. Middle tibiae slightly longer 

 than the hinder, furnished on either side beneath and on the upper portion of the 

 inner side with a row^ of rather infrequent, long and slender, slightly spreading spines, 

 the tei'minal ones of the inferior rows produced to scarcely longer delicate spurs. 

 Tarsi with the first joint ecjual to the second, third and fourth taken together, which 

 decrease in length in the order mentioned, the second less than twice as long as the 

 foui'th, and scarcely so long as the fifth; joints furnished beneath with four, the last 

 with two rows of rather short and moderately slender spines, the terminal ones of each 



