SATYUIXAK: TIIK GENUS ENODIA. 177 



elk' half, l)cy()iHl ('(iiKil and not, ono-fiuarter the -width of tlie l)asc', nearly strai.uiit -wlion 

 viewed laterally, tlic oxtromitios <'urv('d toward each other when viewed from above, 

 the extremity blunt, but armed. 



Egg. Flattened spheroidal, the base rather broadly truncate, so that the width is 

 al)out a lifthgreater thiin the heiirht, and the base about two-thirds the entire width. 

 Surface smooth. 



Caterpillar at birth. Head large and full, broader than the body, broader below than 

 al)ovf. snlitnuicate al)ove, each hemisphere Avith a slight conical elevation above, 

 emitting a long hair ; front with ranged hairs. Body nearly uniform, tapering in the pos- 

 terior half, the last segment broadly and briefly fui'cate, the segments furnished with 

 long, club-tipped hairs, arising from papillae arranged as follows on the abdominal 

 segments, one to a segment in each roAV : a latero-dorsal series, anterior; a supra- 

 lateral series, posterior; an infralateral series, central ; and an infrastigmatal series, 

 central and posterior, there being here a pair; the hairs on the thoracic segments 

 vary a little from this. (After Edwards.) 



Mature caterpillar. Head uniformly deep, the anterior summit of either half pro- 

 duced upward and very slightly forAvard into a conical horn nearly as high as the 

 depth of the head. Apart from the horns the head is of equal height and breadth, 

 nearly as broad as the broadest part of the body, much broader below than above, 

 broadest at summit of ocelli; frontal triangle nearly twice as high as broad, reach- 

 ing more than half way to the vertex, the sides straight. Surface regular, sparsely 

 punctate, and furnished besides with rather numerous and irregularly distributed, 

 conico-cylindrical, blunt tipped, erect papillae, higher than broad, each emitting a very 

 short hair, those on the horns directed obliquely upwards. Antennae small ; first joint 

 mammiform; second short, cylindrical, half as long as broad; third scarcely slenderer, 

 cylindrical, twice as long as broad, emitting a long, curved hair. Ocelli much as in 

 Satyrodes. 



Body long and rather slender, broadest near the middle, tapering posteriorly much 

 more than anteriorly, otherwise nearly cylindrical with no infrastigmatal fold; termi- 

 nal segment with a pair of horns similar to tliose of the head but longitudinal, much 

 longer, regularly coiiical and pointed, their outer surfaces parallel. Each segment 

 divided by live transverse incisions into sections, which are equal on the thoracic, 

 unequal on the abdominal segments, one incision being scarcely in advance of the 

 middle, one above the spiracles, and the others dividing the posterior half into equal 

 divisions. Body covered abundantly and pretty uniformly with exceedingly small, 

 conical papillae, from each of which arises a very short, tapering, pointed, erect, but 

 generally curving hair, several times longer than the papilla. Legs very short, 

 conical, the interior edge of each joint Mith long bristles; claw minutely curved. 

 Prolegs A'cry short indeed and plump, the last joint strongly bristled externally. 



This genus is confined to eastern North America, where it is repre- 

 sented by a single species, — the one described below. Westwood and 

 Hewitson classed it with certain East Indian forms, in the genus 

 Debis ; and it is certainly more closely related to them than to any Xorth 

 American satvrids, tliouoh clearly distinct from them. It is exceedino-lv 

 rare in New England. 



The wings of tlie butterfly are more elongated and less ample than in 

 Cercyonis ; they are warm, lustrous brown above, paler below, especially 

 outwardly, with a submarginal series of rather numerous, unequal, dark, 

 blind spots with a pale edge ; beneath, these spots are repeated, but are 

 ocellated and encircled by a common pale ring ; tlic middle of the wing is 

 crossed beneath by a pair of distant, slender, dark stripes, the inner nearly 



