NYMPIIALINAE : THE GENUS CHARIDRYAS. 649 



and scarcely downward, the middle three nearly in contact, the lowest separated from 

 the fourth l)y nearly its own diameter, and the uppermost from the second by a greater 

 distance; the sixth forms with the first and fourth a right angle, but is a little nearer 

 the former; the third, fourth and tifth are very prominent, the second less so and the 

 first and sixth but very little raised above the surface. Labrum rather large, promi- 

 nent, half as broad again as long, the middle of the front a little and not deeply 

 excised; mandibles not very large nor stout, moderately broad, the edge straight, 

 with a few rather large, not deep triangular teeth ; maxillary palpi with the second 

 joint nearly as long as broad, the third not much smaller and but little longer than 

 broad, the fourth conical and conspicuous. Spinneret minute, very short and slender. 



Body cylindrical, equal, furnished with longitudinal rows of coarse, tubercular 

 spines, one to a segment in each row; they are heavy, scarcely tapering, pretty long, 

 l)lunt at tip, the sides irregularly supplied with numerous papillae or abbreviated 

 spinules, each armed Avith a long, straight, rather stout needle, scarcely tapering, 

 bluntly pointed, directed upward so that those of opposite sides are at an angle of from 

 •io°-90" with each other. The spines are arranged in the following manner : a dorsal 

 row on the first to eighth abdominal segments, the eighth wath two; a laterodorsal 

 row on the second and third thoracic and the first to seventh abdominal segments ; 

 a lateral row on the same segments, a suprastigmatal row on the second and third 

 thoracic and on all the abdominal segments, and on the first to seventh abdominal 

 segments an inf rastigmatal row ; besides these there is a row of linear tubercles bear- 

 ing needles like the others, situated on the thoracic and first to seventh abdominal 

 segments, at the base of the prolegs when these occur, two upon a segment, and on the 

 apodal segments one each. The front edge of the first thoracic segment is thickly 

 beset with forward curving, long, spinous hairs. Legs small, and moderately slender, 

 tapering, the claws slender, scarcely tapering, heeled strongly at base, bent just 

 beyond and scarcely curved. 



Chrysalis. "Viewed from above the prothorax and the parts in front taper a little 

 and regularly, the ocellar prominences not greatly pronounced, bluntly rounded at the 

 outer anterior angle, the front of the head a little convex, the curve slighter in the 

 middle. Viewed from the side the front and summit of the head and of the ocellar 

 prominences are bent at verj'^ slightly more than a right angle, slightly rounded at the 

 angle; the inferior face of the prominences, which is on a line with that of the front 

 of the head betAveen them, is in direct continuation of the slight curve of the inferior 

 face of the body, and the anterior face in almost direct continuation of that of the 

 thorax. Lower surface of anterior half of body nearly straight longitudinally. 

 Thorax considerably arched, highest and angular slightly in advance of the middle of 

 the posterior half of the mesothorax, where it is raised to a A-ery low rounded prom- 

 inence, with a somewhat abrupt posterior face, the apex rounded. Basal wing tuber- 

 cle pyramidal, triquetral, not high, the apex blunt, tlie superior edge running up as a 

 slight ridge nearly half Avay to the laterodorsal tubercles of the mesothorax, the 

 posterior edge forming a long, blunt ridge Avhich is scarcely elevated to form a super- 

 numerary tubercle. Prothorax Avithout tubercles. Abdomen considerably and regularly 

 arched longitudinally; a laterodorsal series of conical, bluntly tipped tubercles of 

 medium size on the middle of themeso- and metathorax and the second to seventh ab- 

 dominal segments, slenderer and directed slightly backAvard on the fifth to seventh seg- 

 ments ; those of the metathorax and second abdominal segment are smaller than the 

 others, Avhich are neai'lj" equal among themselves. On the abdomen there is also a dor- 

 sal series of Avarts on the second to seventh segments, each exactly similar to the lat- 

 erodorsal AA-arts of the same segments, and placed a little in adA^ance of the middle ; the 

 third and fourth segments have also a suprastigmatal series of two small, conical warts 

 a little in advance of the middle. Inferior base of cremaster bounded laterally by 

 coarse, stout, not greatly elevated, curving Avails, approximated considerably at the 

 anterior end, and each terminating in a moderatelj' large, nearly recumbent, rounded 

 tubei'cle; cremaster proper, vieAved from aboA-e, laterally tuberculated at the base, 

 not very long, rather slender, tapering, bluntly rounded, considerably longer than broad, 



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