1636 THE BUTTERFLIES OF NEW ENGLAND. 



midille tibiae. Leaf-like appoiKla;;e of the fore tibiae, long and slender, lanceolate, origi- 

 natins; in tlie middle of the outer fonr-fifths of the joint, but not surpassing its tip 

 because strongly curved, about live times as long as broad, tapering apically to a 

 pointed tip; other tibiae armed at tip with a pair of long and slender, unetjual spines, 

 the hind tibiae with a secondary similar, but slightly shorter pair in the middle of the 

 apical two-thirds of the joint and both with a lateral row of infrequent, very long, 

 prominent spines as in Hylephila. Tarsal joints 1, 2, 3, 4, 5 the apical joint some- 

 times slightly longer than the preceding in the fore legs. Fore tarsi scarcely less 

 than five-.sixths the length of the middle tarsi, nearly one-third longer than the middle 

 tibiae — all with a triple row of frequent, small, delicate spines beneath, those at the 

 apex of each joint, and especially of first joint, scarcely longer; basal joint as long as 

 the rest together; second joint nearly or quite half as long as the basal. Claws pretty 

 small, very delicate, tapering, strongly curving, or more nearly bent atthemiddle, finely 

 pointed. Pad moderate, cordiform. Paronychia large and broad, compressed, lami- 

 nate, fully as long as the claw, bluntly pointed at the tip, its upper border regularly 

 and pretty strongly arcuate, its lower border strongly excised on the apical two-thirds. 

 A pair of nearly straight, scarcely diverging, stiff bristles project beyond the claws, 

 above, to about twice their length. 



The seventh abdominal segment is terminal in a state of quietude in the female and 

 passes but little beyond the sixth; it is composed of an upper, triangular side piece 

 with a posterior, inferior, truncate extension, and of a larger, inferior plate composed 

 of three median pieces, depressed, of equal width, ending in an angular apes and two 

 thick, triangular, outer pieces placed a little below the others, covered with short pile, 

 and ending posteriorly in a point; these form the anterior wall of the copnlatory 

 pouch, in the depth of which is a small, globular, pellucid, fleshy prominence, which 

 supports a very slender, cylindrical, fleshy, pointed finger. These parts are here only 

 seen underpressure. The eighth segment is formed above of a bent auricular, lateral 

 thickened piece, those of opposite sides meeting above, covered with long and delicate 

 erect hairs, and beneath this of a globular, tumid bag. Upper organ of male appen- 

 dages pretty large and stout, strongly and regularly arched, somewhat depressed; 

 centrum longitudinally snlcate above. Hook simple, rapidly tapering and depressed 

 on basal half, beyond aculiform ; lateral arms springing from the base of the hook, 

 aculiform, as long as, and curving in an opposite direction to the hook. Clasps broad, 

 subtriangular, tapering, a little convex, the extremity armed above with two up- 

 turned, long, tapering and finely pointed teeth, the inner sometimes the smaller; end 

 of clasps rounded. 



Egg. Half as broad again as high, broadest at the base, narrowing regularly but 

 very greatly on the Ijasal two-thirds, above broadly and regularly rounded, scarcely 

 flattened. Surface broken up by exceedingly slightly raised lines into pretty regular 

 hexagonal cells. Micropyle consisting first of seven, compressed, oval, somewhat 

 lozenge-shaped cells clustered irregularly around a common centre ; other cells much 

 larger, irregular, polygonal — usually pentagonal or hexagonal — somewhat kite-shaped, 

 those nearer the centre being always at least twice as long as broad, the outer nearly 

 as broad as long, increasing in size but not much in length from centre outwards. 



Caterpillar at birth. Head globose, broad and subtruncate at base, as seen from in 

 front, the upper two-thirds almost exactly semicircular in outline, sparsely punctate ; 

 triangle reaching above the middle of the head, considerably higher than broad, at the 

 level of the ocelli with a transverse, arcuate series, convexity upward, of four minute 

 hair-bearing papillae, the middle ones more widely separated than the others. Third 

 joint of antennae about twice as long as broad, cylindrical but slightly arcuate, with a 

 fine bristle much more than double its length. Body not very elongated, plump, 

 slightly arched, falling oft' rapidly behind ; dorsal shield of first thoracic segment mod- 

 erately large, thickened at the edges, particularly on the front edge, the legs of this 

 joint more corneous than the others ; last segment with two pair of subdorsal papillae, 

 givinu rise to long, recurved, pointed hairs; other dermal appendages are seated on 

 papillae, wine-glass shaped, the pedicel generally two or three times as long as the 



