77 



The following description belongs very probably to this species. 



PenuUhnute stage. General color green. Head scabrous, and, like the 

 body, thickly covered with raised yellow dots ; a narrow yellow stripe on 

 each side, the two nearly meeting on the summit and extending to the base 

 of the antennae : just behind its lower extrenuty a black dot; mouth-parts 

 black. The seven oblique splngial bands extend each from the anterior 

 edge of the segment, a little below the spiracle, over that whole segment and 

 two-thirds of the succeeding, upon which they are less oblique; these bands 

 vary from yellow, much paler and fainter on the posterior segment, to red, 

 deepening to crimson anteriorly and changing posteriorly to a slightly rosv 

 white, and upon the succeeding segment to greenish yellow; the last band, 

 however, extends with double width upon the eighth abdominal secnient, 

 and, with a color as deep as upon the anterior segment, one-third way up the 

 caudid horn : these bands are all bordered above by a band of ec^ual breadth, 

 of a crimson color, which dies out just before reaching the posterior border 

 of the segments, excepting on the eighth segment, where it continues, as a 

 delicate edging of the lower band, to the extremity of the horn, which is 

 tipped with dark brown, while the basal third of the horn above, between 

 these edgings, is green ; the rest of the horn not covered by these markings 

 is black. Edges of the last segment pale yellow ; spiracles testaceous with 

 white areola. Length 28 mm., breadth 5 mm. 



Mature larva. Head scabrous ; color and bands as in previous stage, 

 excepting that the latter are parti-colored, being yellowish green in front 

 and black behind; antennae and labrum yellowish; other mouth-parts black. 

 The sphingial bands occasionally do not pass to the succeeding segment, 

 but usually they do, and they may be either yellow or white (in the latter 

 case with a yellow tinge posteriorly), edged as before with crimson, and 

 this crimson often followed above by a narrow margin of black, sometimes 

 liroken, and extending on the eighth abdominal setrment as an edging of 

 tlie yellow strijie (which here is always yellow), and on this segment never 

 wholly wanting. The horn is black on the sides, with a slight lateral 

 yellow stripe; green above and beneath. The whole body profusely s})rin- 

 kled with circular white dots having a black areola, but the areola often 

 wanting on the upper surface and sides of the abdominal and first thoracic 

 segments, or the spots may be altogether wanting on the up[)er surface of 

 the same segments. Spiracles testaceous, changing afterwards to a bright 

 reddish color; prolegs light brown. Length 57 mm. Feeds on Sweet 

 Fern {Coinptonia aaplenifolia'). Collected on Cape Cod and at Princeton, 

 Mass., and in Connecticut. (Described in 18G9.) (^'. H. Scudder.) 



Anceryx ello. Figure, by M. S. Merian, in '-'• Insectes de 

 Surinam, page and plate 61," cited and exceedingly briefly de- 

 scribed by Harris, in Sphinx, 297 ; Harris' descr. reproduced 

 in Morr., 201. 



