PAPIHONINAE: THE GENUS PAPFLIO. 1347 



biisowanl, tlii^ part beyond rather stout, its extremity subspatulate. Valves elon<;ate 

 triangular with rounded angles, bi-oadest beyond the middle, much longer than broad, 

 armed within by an inferior, straight, corneous rod, bearing on its apical half minute 

 denticulations. 



Bgg. Nearly globular but slightly broader than high by the truncation of the base, 

 showing no depression above, smooth and glistening, the granulation of the surface 

 being almost invisible. 



Caterpillar at birth. Body subcylindrical, a little angulated at the lateral line, a 

 little tumid on the thoracic and first and second abdominal segments, very slightly 

 attenuated behind. There is a subdorsal row of small papillae, minute on the abdo- 

 men, one to a segment, bearing short hairs; there is also a supralateral row of tuber- 

 cles, one to a segment, each surmounted by conical warts beset with whorls of six to 

 eight liristles, those of opposite sides at right angles to each other, and a central longer 

 one. On the first thoracic segment there is a small acessory tubercle at the postero- 

 Interior base of the one mentioned ; there is also a suprastigmatal row of small com- 

 pound warts bearing bristles, one longer than the rest, an infrastigmatal row of 

 clustered, low, broad tubercles each surmounted by a small wart bearing a bristle, and 

 a ventrostigmatal series of numerous bristles to a segment ; a few hairs are scattered 

 irregularly over the surface seated on very minute warts. 



Mature caterpillar. Head small, broadest at the upper extremity of the ocellar 

 field, fully as broad as high; a little full and well rounded next the ocellar field, 

 beneath nearly straight; above the broadest point tapering a little, with a slight curve 

 to form rather a high dome, which is interfered with by the considerable depression 

 of the middle suture at the .summit, le.aving either half a little v.aulted and yet 

 slightly depressed on top. Head considerably deepest at its broadest point, the front 

 highly appressed, sutures a little impressed; covered with minute, irregular, trans- 

 verse, impressed lines, and abundantly and pretty uniformly supplied with exceed- 

 ingly short, delicate hairs, arising from scarcely perceptible wartlets; triangle small, 

 as broad as high, scarcely reaching more than two-fifths way up the front. Antennae 

 with the first and second joints together forming a very broad, slightly elevated dome, 

 the third slender, fully twice as long as broad, equal and cylindrical ; fourth very minute. 

 Ocelli six in number, three arranged in a scarcely curving row, its convexity forward 

 and a very little downward, at about equal distances apart, a fourth below the third, 

 counting from above, being midway between the first and fourth and on a line with 

 them, a fifth directly behind and scarcely above the first, and as near it as the first is to 

 the second; and the sixth behind the second, at equal distances from the first and third 

 and at scarcely a less distance from the second; all hemispherical and of nearly equal 

 size, but the fifth and sixth a little less prominent. Labrum moderately large, pretty 

 broad, the front margin very deeply and angularly excised. Mandibles pretty large, 

 stout and broad, tumid, the edge straight, sharply but not very deeply dentate above, 

 smooth below. Maxillary palpi very small, the penultimate joint scarcely longer than 

 broad, the last very small. Spinneret rather small, scarcely tapering, moderately 

 long, recumbent. 



Body large and plump, largest on the third thoracic segment, tapering rapidly 

 forward, the first thoracic segment being scarcely more than half the diameter of 

 the third, and more gradually backward, the last abdominal segment being fully as 

 large as the first thoracic ; the segments are very slightly arched ; there is an incon- 

 spicuous laterodorsal row of suppressed warts, and the body is covered abundantly 

 but not profusely with infinitesimal warts, each bearing an exceedingly short, delicate 

 hair. In the earlier stages the body is furnished with tubercles, which become pro- 

 portionally smaller in every stage ; in the fourth stage they are arranged as follows : 

 a subdorsal series of conical warts on the second and third thoracic segments placed 

 centrally; a laterodorsal series of tubercles bearing thorny wartlets, placed centrally 

 on the thoracic, and first to ninth abdominal segments, those of the thoracic segments, 

 and especially the hinder two, twice as long as the others ; on the first thoracic segment 

 A pair of supralateral tubercles like those of the laterodorsal series, but as large 



