NO.1209. LIFE HISTORIES OF AMERICAN MOTHS— DYAR. 257 



iiTo<iiilar, rather sparsely spinose. Yellow green, greener dor.sall}'-; 

 horn pale red brown toward the base, espcciallj- at the sides and at 

 tip; a black line outwardly on thoracic feet; anal flap triangular, 

 nearly reaching the end of the anal foot plates, Avhich are rounded 

 triangular; spiracles pale ocherous. Subdorsal horns of anal plate, 

 short cones; horn depressed obliquely and touching the leaf stem far 

 ])ehind the larva. Later the sides are obliquely shaded, but the ».inly 

 true lines that appear are the oblique on 12 to 10 and the longitudinal 

 subdorsal on the thorax. The body fills out posteriorly, joints 2 ta 4 

 being smaller than the rest and tapering to the large head. 



Stage III. — Head highl}^ triangular, the doubly pointed apex 

 curving in front, making the flattened face look concave; green, sides 

 a shade darker, a pale line from the ocelli to vertex. Sparsely granu- 

 lar, subspinose in front before the apex, tip; of lobes yellowish, with a 

 faint line down the back of each, of same c Jr; width 2.5, height 4.5 

 mm. Body robust, small before; horn largj (8 mm.) and very thick, 

 slightly arcuate backward, extended nearly longitudinally. Green, 

 with distinct elevated pale-yellow granules; faint subdorsal and sub- 

 ventral yellow lines on thorax and an oblique on joints 12 to 10. 

 Shaded faintly with whitish, leaving a darker dorsal and faint oblique 

 shades on joints 5 to 11. Spiracles brown, paler at top and bottom. 

 Horn densely spinose, with thick, conical, irregular tubercles, black 

 on the dorsal (anterior) half, greenish yello' below, but the tips of 

 the spines ])lack. Abdominal feet green; iqi-f)^cic ones black out- 

 wardlv. Anal shields green, black punctur' J, slight, pale tubercle 

 representing the former subdorsal horn. Anul flup rounded triangular. 



Stage IV. — Head shaped as before, held f*bliquely so that the ver- 

 tex points forward and the back of the head -, level with the dorsum; 

 green, sparsely granular, subspinulose towarcl.the horn-like apex; two 

 whitish lines on the side of each lobe and one on the back, running to 

 the vertex; width 4 mm. Body robust, smaller before, aiuiulate, 

 sparsely yellow granular, the granules pilose and also considerable 

 pile between them without basal granules. Green, dorsal line darker, 

 olivaceous, without granules; an oblique yellow stripe from the horn 

 to joint 10, the faint whitish lateral clouding shaded obliquely darker 

 on joints 5 to 9. Anal plates triangular, smooth, punctate with dull 

 ocherous. Spiracles brown, j^ellow at top and bottom and in a narrow 

 vertical central line. Horn very large and thick, coarsel}', densely, 

 conically spinose, olivaceous yellowish below. Abdominal feet green ; 

 thoracic ones black, with coarse pale granules, the basal joint black 

 only in an outward stripe. Later the dorsal band becomes purplish, 

 especially on joints 5 to 11, edged with paler. 



Stage V. — Head highly conical, but without the points of the pre- 

 vious stage; vertex rounded, median suture impressed, clj^peus very 

 small, about one-fourth the height of heacj, vertical membranous tri- 

 angle visible on the back, not reaching halfway to the conical apex; 

 Froc. N. M. vol. xxiii 17 



