1722 



THE BUTTERFLIES OF NEW ENGL.'VND. 



surface are seldom absent, but scarcely more distinct than above; edge of outer bor- 

 der and f rinse as in fore wings. 



Abdomen Ijlackish above, yellowish tawny on the sides, blending into pale, dirty 

 yellow beneath, flecked with blackish. Male appendages (37:28) with the upper 

 organ not greatly longer than the clasps, the hooks as in mystic, but slightly sepa- 

 rated at their tips and with a rounded slope to the sides before the middle; lateral 

 arras as in mystic. Clasps twice as long as broad, much slenderer on the distal than 

 on the basal half, the upward apical extension separated from the upper posterior 

 lobe by a distinct snlcation; it tapers regularly and slenderly and, besides the pointed 

 apical spine, is denticulated slightly on the edge next the spine; the upper lobe has a 

 similar though heavier appearance on a side view, but its upper edge is pretty broadly 

 incurved and bears several pretty lai-ge inturned denticulations. 



Described from 15 3 , 169 • 



This butterfly is readily distinguished from L. biraacula, which it closely resembles 

 in general appearance and in size, by the shorter and stouter apical portion of the an- 

 tennal club of the male and by the absence of the paler scales upon the nervures of 

 the hind wings beneath, which lend a peculiar appearance to the latter species. The 

 snufl'-colored tint of the under surface of the hind wings is a characteristic pe- 

 culiarity. 



Accessory sexual peculiarities. The discal stigma of the male has been de- 

 scribed under the wings ; the scales in it consist of thread-like scales in the heart of 

 the stigma (50 : 5 f), the joints tapering slightly and rather abruptly at either extremity, 

 besides some slender audroconia with rounded apex, about twice as large in the apical 

 as in the basal half, being thus subspatulate; above the apical dash the cover scales, 

 if they may so be called, are two-pronged and three-pronged slender scales (5 g, h), 

 enlarged gradually from base to apex ; so, too, at the base of the stigma the nsnal two- 

 pronged rods become bidentate, moderately broad scales (5 b), only four or Ave times 

 longer than broad, of large size; while in the field below the stigma the scales are 

 either long, triangular, with rounded apex, either entire (5 e) or bilobed (5 a) ; or 

 they are rounded, tridentate, equal, long and slender scales (5 c) with converging 

 waved reflections. 



Egg (66:26). Large, hemispherical, very pale green, flattened over a considerable 

 space above, about a third broader than high; surface densely and most delicately 

 punctured, excepting in the smooth, glistening, scarcely raised reticulation which 

 covers tlie whole egg and forms a network of polygonal cells, mostly broader than 

 high at the base, subcircular in the middle and higher than broad above, the average 

 diameter being about .04 mm., and the punctuations in each cell from 12 to 20 in num- 

 ber, very uniformly distributed and uniform in size and shallowness. Above, the cells 

 diminish rapidly in size in a space about .2 mm. in diameter to form the micropyle 

 rosette (69:14), in which the cell walls are extremely faint and delicate. Height, .8 

 mm. ; diameter, 1.1 mm. 



Caterpillar. First stof/e (73 : .■?). Head (80: 63) and all its appendages brownish 

 piceous, with a few, very fine scattered hairs, the surface very sparsely and shallowly 

 punctuate and slightly and faintly corrugate. Triangle of head transversely rugose, 

 witli the suture above it transversely punctate; labrum with a reddish tinge. Body 

 pallid green with the dorsum of the first segment covered with a piceous shield 



