rA.Mriiii.iDi: THE cjenus pampiiila. 1565 



Egg. Ilpiiiispliericiil, iimre tliaii hall" as l)ri>:Kl ajraiii as liigli, the iloracil upper portion 

 very faintly and vertically wrinliled, slnulating ribs which do not quite reach the basal 

 broadest part of tlie eirg ; surface in no part cross-lined or reticulate but uniformly 

 punctate. 



Caterpillar at birth. Head largo, full, smooth, broadest below, narrowest above, 

 a little liiglior tluin broad, well rounded at all points, of nearly e<jual depth through- 

 out, posteriorly truncate. Antennae witli tlie basal mammiform joint exceedingly 

 short, scarcely protuberant, tliiril joint slender, twice as long as broad, cylindrical 

 but largest apically and rounded at tlie tip, ttie fourth joint minute, cylindrical, about 

 twice as long as broatl and sliorter tlian tlic widtli of tlie thii'd joint, the bristle very 

 short and exceedingly fine. Body slender, equal, the first segment slightly the broad- 

 est, with a moderately slender, transverse, entire dorsal plate, the last witli a few 

 curving hairs not more than twice as long as the ranged bristles. These, which are 

 slender, t.apering, one-third as long as the segments, the apes enlarged so as to be as 

 broad as the extreme base, are seated on papillae half as high as broad, and disposed 

 on eacli side of the bod}' as follows : — a laterodorsal anterior series, becoming supra- 

 lateral on tlie thoracic segments, the bristles directed upward, and on the abdominal seg- 

 ments a little inward; an iufralateral post-median series, the bristles directed outward 

 and slightly forward on the thoracic, sliglitly backward on the abdominal segments; a 

 stigmatal anterior series, the bristles directed outward and slightly downward and back- 

 ward ; and an infrastigmatal series of two to a segment, the bristles slightly divergent 

 and downward directed. 



A stigmatal series of crateriform disks on the thoracic segments so closely resemble 

 spiracles that I was deceived by them and in a note on p. 11 of this work wrongly 

 mi'iitioned tliem as such. 



Mature caterpillar. Head large, higher and broader than the body, the front rounded 

 snliquadrate, slightly narrow above, a little higher than broad, the summit slightly 

 notclied. each hemisphere with a somewhat independent curve. On a side view much 

 broader below than above, the diminution in depth being mainly upon the upper two- 

 flfths, the front much rounded ; triangle extending much above the middle of the front, 

 slender, half as high again as broad ; surface delicately and shallowly mgulose with no 

 papillae but with short and very scant and delicate pile. Ocelli six in number, four in a 

 tolerably strong anterior curve, the upper two small, the lower two large, a fifth as 

 large as the third and fourth and nearly on a line with them, opposite the base of the 

 antennae, further removed from the fourth tlian tlie fourth from the first; the sixth 

 wliich is as small as the first and second, and behind the fourth, forms with the latter 

 and the fifth the right angle of a right-angled triangle. Labrum twice as broad as 

 high, rectangular with rounded corners. Mandibles stout, chisel-edged. 



Body elongated, very depressed, cylindrical, slender, tapering very gradually from 

 the front of the second abdominal segment forward and quite as gradually from the 

 fifth abdominal backward, the body terminating in a produced, slender, regularly 

 rouudod, depressed, paraboloid plate. The neck of the tir.st thoracic segment is very 

 short and less constricted than common among the Pamphilidi. The transverse dorsal 

 plate of the same segment occupies the posterior half only of the segment and is in- 

 conspicuous, subfusiform, but of nearly uniform width and well rounded at the sides, 

 the wliole segment of about equal length and breadth and broadest just beyond the 

 base. The third segment is considerably larger than the first, which more nearly ap- 

 proaches the head in width and height than it does the segment behind it. Abdominal 

 segments divided by transverse sutures into five subsegments, an anterior broad and 

 four narrower subequal sections, three of them together scarcely larger than the an- 

 terior, the third and fourth rather shorter than the second and fifth. Body covered 

 with a sparse pile, consisting of short, tapering, finely pointed hairs seated on minute, 

 abundantly distributed papillae, not more than twice the width of the base. Spiracles 

 minute, short ovate, crateriform, as if seated on the summit of slight tubercles, that 

 of tlie eighth abdominal segment larger than the others and somewhat higher upon the 

 body. Legs short, stout, the last two joints rapidly tapering, the claw bent at nearly 



