﻿NORTH AMERICAN SPHINGHLE. 147 



26. D. Chaerilus. — Sphinx Chaerilus Cramer, III. 91, pi. 247, f. A. Sphinx Azaleee Abbot & Smith, 

 I. 53, pi. 27. Chaerocampa Chaerilus Harris, p. 302, 2. Darapsa Chserilus Walker, p. 183. 



Head, palpi and thorax ferruginous brown, with a spot at the base of anterior wings, and tegulae behind 

 tipped with brownish grey. The abdomen fawn color, with the hairs of the hind portions of segments 

 whitish. The anterior wings are fawn color, tinged with reddish from the base to the middle ; a broad 

 ferruginous brown shade crossing the nervules, and composed of three lines having between them two 

 rows of indistinct, fawn colored spots ; marginal space grayish at the tip, and obscure purplish toward the 

 interior angle ; a ferruginous brown line across the middle of the disc, and another, rather indistinct, near 

 the base. Posterior wings ferruginous, deepening to a ferruginous brown narrow border, on the excavated 

 portion of the hind margin ; fringes whitish. 



From collections of Messrs. Edward Norton and S. H. Scudder. 



Egg. ? 



Young Larva. ? 



Mature Larva. — Head green, with a narrow, central brownish line. Body green, deepening on the sides 

 and whitish on the dorsal region, with six oblique, irregularly oval lateral whitish bands; stigmatae orange ; 

 horn bluish green. A variety is represented by Abbot & Smith in which the green color is replaced by 

 pale ferruginous and the bands the same ; horn dark brown. {Abbot & Smith.~) 



Pupation. — Undergoes the larval transformation in an imperfect cocoon on the surface of the ground. 

 Abbot & Smith represent, that in Georgia the first brood enter the pupa state about the middle of May and 

 appear as perfect insects during the middle of June ; another became a pupa September 16th and an imago 

 on April 16th following. 



Food-plants. — Azalea nudiflora, (Pinxter flower.) Abbot. 



Geographical distribution. — Georgia, Massachusetts, Connecticut, New York. 



Measurements — a Female. 



HEAD. THOKAX. ABDOMEN. BODY. ANT. WING. 



Length. Breadth. Length. Breadth. Length. Breadth. Length. Length. 



1-50 2-25— 1-50 3-25 3-50 9-00 4-00 14-00 15-00 



27. D. myron. — Sphinx Myron Cramer, III. 91, pi. 247, f. C. Sphinx Pampinatrix Abbot & Smith, I. 

 55, pi. 28. Otus Cnotus Hubn. Zutr. Exot. Schmett, f. 321, 322. Chserocampa Pampinatrix, Harris, 

 p. 301, I. Darapsa Myron Walker, p. 183. 



Head, palpi, prothorax and tegulae dull dark green ; a whitish patch at the base of anterior wings, the 

 tegulse beneath edged with whitish and a triangular whitish line on dorsum of thorax. Abdomen dull 

 greenish. Anterior wings dull pale green from the base to about the middle, with discal spot and a 

 moderate band across the middle of disc dark green ; a broad dark green shade across the nervules, divided 

 in the middle by an indistinct lighter line, and deeply excavated posteriorly, where there is a dull greenish 

 cinereous marginal patch. Posterior wings ferruginous, with a dusky green patch near the interior angle. 



Egg. ? 



Young Larva. ? 



Mature Larva. — Head pale green, with an indistinct, lateral yellowish line. Body pale green, inclining 

 to yellowish and deepening in color beneath the subdorsal lines, which are greenish white, and curve on the 

 sides from first segment to base of caudal horn, with seven irregularly oval, greenish white patches enclosing 

 orange colored stigmatee and bordered beneath with dark green. There are several small crimson vascular 

 spots on the dorsum. Sometimes reddish brown, and the subdorsal lines and lateral patches tinged with 

 reddish. Horn reddish brown, with black tubercles. 



