1172 THK BUTTERFLIES OF NEW ENGLAND. 



margin expanded at base, beyond gently curved, continuous with the curve of the outer 

 margin. Branch of costal nervure curved strongly outward beyond its middle; vein 

 closing the cell striking the subcostal and median nervures at equal distances beyond 

 tlieir second divarication. 



Androconia lyre-shaped, very broadly expanded at tlie base, with exceedingly large 

 basal lobes, apically narrowing to a short, equal lamina which is apically angulate and 

 heavily fringed. 



Fore and middle tibiae of equal length ; fore tarsi of the same length as the fore 

 femora and the middle tarsi and not much shorter than the hind tarsi; hind 

 femora two-thirds (<?) or a little more than half (J) as long as the middle femora. 

 Femora thinly fringed with rather long hairs. Tibiae very abundantly supplied on 

 all sides with very small and slender spines, scarcely arranged in rows and at the tip 

 with a pair of rather stout and moderately long spurs. First joint of tarsi rather moi-e 

 than equalling all the others together, the second, third and fourth diminishing very 

 slightly in order, the tlftli equal to the third ; allare armed profusely with spines similar 

 to those of the tibiae, irregularly distributed above and on the sides, below with four 

 rows ; on each joint an apical pair but slightly longer than the others ; claws but little 

 divaricate, small, .slender, compressed, rather strongly curved, bifld to the middle, the 

 upper branch a little the longer and much less curved ; paronychia as long as the 

 claw, consisting of a broad, slightly narrowing lobe, with a bluntly rounded, scarcely 

 pointed apex, concealing almost the whole of the claw on a side view; pulvillus 

 rather large, obovate, on a rather long and stout peduncle. 



Upper organ of male abdominal appendages large but slender, depressed, tapering, 

 curving slightly, the hook and centrum of equal length, the lateral arms united to form 

 a short and slender, tapering process, extended beneath tlie apical half of the hook and 

 by bending downward, I'ather widely separated from it. Clasps flat, directed almost 

 horizontally backward, half as long again as broad, the apex equal or scarcely tapering, 

 the posterior border well rounded, a little bent in the middle. 



Egg. Sugar-loaf shaped, more than twice as high as broad, largest above the base, 

 tapering next the summit much more rapidly than before, terminating in a flattened 

 top, the base squarely docked ; a moderate number of sharply defined but not greatly 

 elevated ribs run from the base to the summit, occasionally not (juite reaching it, but 

 sending, at their termination, oblique shoots to their neighbors ; transverse lines regu- 

 lar, continuous, crossing the ribs, frequent, slightly raised. Micropyle rosette com- 

 posed of a central circle, surrounded liy four disconnected ovals, between and beyond 

 which are larger, roundish cells, followed by very large, transverse, semi-lunar cells. 



Caterpillar at birth. Head broadest at summit, considerably broader than high, 

 below very fully and pretty regulai'ly rounded, furnished with a few rather long, very 

 slender and tapering hairs; mandibles broad (86:32), with five unequal, blunt den- 

 ticulations. 



Body of the adult form, furnished with a longitudinal series of broad, mammiform 

 elevations, each with a high, truncate, conical nipple, emitting a long and very slender 

 hair, scarcely tapering, the apical portion delicately e-xpanding into an oval club of 

 more than twice the diameter of the hair just preceding it (86 : 44) ; they are ar- 

 ranged, one on a segment, in a laterodorsal, lateral and laterostigmatal series, the 

 first and third placed anteriorly, the second also anteriorly on the thoracic segments, 

 but posteriorly on the abdominal; the laterodorsal hairs of the first segment are 

 much longer than the others, and terminate in a delicate point, tapering throngliout; 

 there is also in a substigraatal series two on a segment, the anterior larger aud a little 

 lower. Legs pretty long and slender, tapering regularly ; claw small, slender, slightly 

 curved, tapering; prolegs mammiform, the last joint short and slender; booklets 

 very slender. 



Mature caterpillar. Head moderately small, very regularly roimded, front aspect 

 very nearly circular, broadest in the middle, scarcely broader than high, the sutures 

 distinctly but narrowly impressed, deepest next the ocellar region, not at all full in 

 front, surface transversely rugulose, supplied pretty regularly but not very frequently 



