LYCAENINAE: THE GENUS FENISECA. ]0n 



with a central, shallow and small nulention. Cells very numerous ami \\ ilh slijilit 

 walls. 



Caterpillar at birth, lload as broad as the first thoracic segment, broadest above 

 the iniddlo, riithor deeply and broadly cleft in the niiddlo above, the trianfilclarKC, just 

 failing to reach the cleft, lusher than broad. The posterior structure of the licad is 

 as 111 all Lycaeninac. renderini; it capable of being enfolded in llio meuil)ranc inlerven- 

 Inj; between the craninui and tlie llrst thoracic segment. I$ody cylindrical ; llrst and 

 lastsegraents a little smaller than the others, both with a central cliitinous shield, the 

 former transverse with a sinuate anterior margin, the latter triangular, the apex back- 

 ward and the sides convex. Legs and prologs well developed, the booklets of the 

 latter only live in number but very long, longer than the leg claws and falciform. 

 Spiracles greatly elevated on truncated cones, that of eighth abdominal segment on 

 a level with the others. The papillae are of various sizes and numerous and bear long, 

 curving, tapering, delicate and spiculiferons hairs, tliose of the thoracic segments 

 generally directed forward, those of the abdonunal backward. Tlicrc is a subdorsal 

 series of small papillae posteriorly situated on the 2-:! thoracic and 1-S abdominal seg- 

 ments, a central laterodorsal series on 2-3 thoracic and 1-'.) abdominal segments, 

 small on the thoracic, large on the abdominal; a lateral series large and central 

 on 2-3 thoracic, of medium size and posterior on 1-8 abdominal segments ; an infra- 

 lateral series, minute and posterior on 1-8 abilominal segments; a suprastigmat.al series, 

 large and central from 1st thoracic to 8th abdominal segments; and on each side below 

 the spiracles, apparently two pairs, a longer and a shorter in each, anteriorly and pos- 

 teriorly placed on each abdominal segment. Besides these there is a posterior infra- 

 lateral anunlus on the third thoracic segment, and a lateral central series of annuli 

 on the 1-8 abdominal segments; also many hairs situated on papillae arranged in a 

 transverse row on the first thoracic and an arcuate row on last abdominal segment. 

 The position, central or posterior, of all the body papillae places them on each segment 

 in a double, transverse series. 



Mature caterpillar. Head moderately large, rounded, subquadrate, the cranium 

 nearly twice as broad as high and nearly as deep as high, only half witlidrawn witliin 

 the llrst segment when at rest. Frontal triangle very large, occupying nearly one- 

 third of the front view of the head, eciuiangular; Uil)rum large, arched and very tliick, 

 slightly and roundly emarginate in the middle, the outer angles well rounded ; antennae 

 with second joint slender, cylindrical, a little more than twice as long as broad with a 

 not much longer bristle; mandibles small, concealed completely in the mouth cavity, 

 scarcely longer than broad, scarcely tapering, the rounded apical margin armed with 

 four curving, claw-like teeth ; maxillary palpi larger than usual, composed of three 

 joints decre.asiug regularly in size so as to form a conical, mov.able, pointed appendage, 

 very similar in appearance to the legs. 



Body largest in the middle and tapering toward either end, both as seen from the 

 top and sides, the incisures deep and their moniliform eflect on the body intensified by 

 the irregularity of surface of the segments, whicli are tumid in large and broad bosses 

 on the lateral, suprastigmatal and infrastigmatal lines, giving a subquadrate cross 

 section, which is increased by the flatness of the dorsal area. Furnished abundantly 

 with scarcely arcuate, tapering, finely spiculiferous and pointed hairs, about as long 

 as the segments of the body, and arranged irregularly in a comparatively broad field 

 transversely across the summit of each segment, but clustered most abundantly on all 

 but the first thoracic segment on the elevated bosses. Terminal segments without 

 special appendages, the last with a central anterior sunken pit. Spiracles minute, 

 transversely oval, scarcely elevated, that of eighth abdominal segment on a line with 

 the others. Legs small, the last joint slender, compressed, tapering. Prolegs minute, 

 not visible either at rest or in movement. 



Chrysalis. Viewed from above the head Is truncate with rounded lateral angles, 

 the thorax rapidly widening to the middle and then nearly equal, though beginning 

 posteriorly to widen by the divergent outline of the wings as they expand toward the 

 widest part of the abdomen ; the latter globose basally , including five segments, the great- 



