158 thp: butterflies of new England. 



ing, pointed, directed backward, incurved, less tlian ono-tliird as long as the liook. 

 Clasps strongly compressed, not incurved, rather Iji'oad at the base, but narrowing 

 throughout, mostly ou the distal half, which is bent a little upward and terminates iu 

 a blunt point ; upper margin of the clasp al^out as long as tlie hook of the upper organ. 



Egg. Somewhat short l>arrel-shaped, Init diminishing greatly in size on the upper 

 half, the apex, which is broadly truncated and distinctly separated from the sides, a 

 little convex; higher than broad, broadest in the middle of tlie lower tAvo-thirds, the 

 base slightly convex, the sides a little inflated ; sides furnished with a lai-ge number of 

 distinct, but not very prominent, longitudinal ribs and traversed transversely by numer- 

 ous delicate, raised lines ; at the summit the longitudinal ribs are connected by an 

 irregular, wavy rim, between which and the micropyle is a similar circlet; surface 

 minutely granulose. Micropyle formed of minute, roundish, polygonal cells, decreas- 

 ing in size toward tlic centre, l^ounded ]>y flue lines. 



Caterpillar at birth. Head regularly rounded, of equal height and ])readth, the 

 upper half, as far as a line running from the largest ocellus to a point about one-third 

 way doAvn the frontal triangle, but avoiding the ocellar tield, pretty coarsely and 

 rather abundantly punctured; anterior ocellus twice as large as any of the others. 

 Body depressed above between the laterodorsal rows of appendages ; terminal segment 

 stpiarely truncate, the only indication of the subsequent bifurcation being in the 

 papillae which give rise to long terminal hairs. Body furnished with elevated papillae 

 giving rise to peculiar appendages and placed in horizontal rows, as foUow^s : a tho- 

 racic mediodorsal series, and the following over the whole body; a laterodorsal series, 

 two to a segment (the posterior slightly the lower and its appendage growing contin- 

 ually shorter toward the posterior part of the body), the appendages of both directed 

 forward on the thoracic, backward ontlieal)dominal, segments ; a suprastigmatal series, 

 one to a segment, centrally placed, and its appendage directed forward; and an infra- 

 stigmatal series, two to a segment, the posterior a little higher tlian the anterior, the 

 appendages of both directed backward. The appendages above the spiracles (86 : 39) 

 consist of exceedingly long, scarcely tapering, compressed hairs, bent very strougly a 

 little above the base, so as to be nearly horizontal, the convex surface distantly aud 

 rather sinuously serrulate ; those below the spiracles are somewhat shorter and not so 

 greatly curved. Legs rather long, not very stout, tapering, the claw I'ather short and 

 stout, tapering rather rapidly, pretty strongly and regularly cui'ved ; ventral prolegs 

 armed with live, anal prolegs with seven booklets, arranged in a slight curve, equal, 

 the basal half nearly straight, tlie distal strongly curved, distant from one another by 

 less than their own wddtli. Spiracles circular, a little elevated, on slightly constricted 

 stalks. 



Mature caterpillar. Head appressed globose, a little flattened above, pretty full iu 

 front, broadest at the upper limit of the ocelli, narrowing but little above, the surface 

 uniformly and rather sparsely studded with small, bluntly conical papillae. Ocelli Ave 

 in nund)er, four in an open curve, of which the flrst, third and fourth are similar in 

 size and equidistant, the second much larger and approximated to the flrst, the rtfth 

 posterior and at the angle of an equal armed right angle uniting tlie second and fourth. 

 Frontal triangle slender, Avitli straight sides, reaching the middle of the upper half of 

 the head, nearly twice as high as broad. Labrum narrow, nearly as long as wide, angu- 

 larly and considerably emarginate. Antennae small, the flrst joint mammiform, the 

 second inconspicuous, hardly half as long as broad, forming a small and tapering ring, 

 the third cylindrical, about two and a half times longer than broad and less than half 

 as broad as the flrst, bearing at tip a not long, tapering bristle, and, laterally, the 

 minute cylindrical fourth joint. Mandibles stout, broad, chisel edged. 



Body cylindrical, slightly flattened ))eneath, largest at the second aljdominal segment 

 and tapering efpially forward and backward as far as the flf th abdominal segment and 

 then more rapidly; anal horns short, slender, conical, Avidely separated, the segment 

 truncate between them. Abdominal segments divided above by creases into six sec- 

 tions, of which the anterior, as far as the spiracles, is tAvice as large as one of the 

 others which are equal ; the second and third thoracic segments are divided into Ave 



