148 JOHN B. SMITH. 



Head and thorax above rust red, varying to brown red, with the tips of the 

 patagise and a spot at the base of primaries pale gray. Abdomen fawn colored, 

 varying somewhat in shade, the segments narrowly edged with pale yellowish. 

 Primaries reddish brown with purplish reflections. The basal half is sprinkled 

 with grayish scales and crossed by four curved brownish lines; a small brown 

 discal dot. Outer portion of wing darker reddish brown, crossed by several in- 

 distinct paler lines, the inner edge being oblique and straight. Terminal space 

 of the same color as the base of wing. Secondaries rusty brown. Beneath, pale 

 rusty brown with indistinct terminal bands and two faint transverse lines on all 

 wings. Expands 2.25 — 3.25 inches; 56 — 81 mm. 



Hah. — Canada to Georgia; westward to Missouri, Iowa. 



The species is readily recognizable not only by its spinose tibisB, 

 but also by the red brown thorax ; that of the other species being 

 more or le.ss green. The genitalia are as described in the generic 

 heading, the clasper a very saiall, slender, corneous hook, but slightly 

 curved at the tip and somewhat obtuse. The species is not uncom- 

 mon, the larva was first made known by Abbot and Smith, and has 

 been more or less completely described by various authors since that 

 time. 



A. myron Cram., Ex. iii, p. 91, pi. 247, fig. C, Sphinx ; Hiib., Verz. 142, Otus ; 

 St. Farg. & Serv., Enc. Meth. x, 441, Smerinthus ; Wlk., C. B. M. Lep. Het. 

 viii, 183, Darapsa ; Clem.,® Journ. Ac. N. Sci. Phil, iv, 1859, 147, Darapsa ; 

 Morr.,* Syn. 1862, 168, Darapsa; Lint.,* Pr. E. S. Phil, iii, 663, larva; Grt., 

 Pr. E. S. Ph. V, 81. Otus; Beth., Can. Ent. i. 10. Otas ; Eiley,* Am. Ent. li, 

 22, figs. 12-15, life hist. ; Saund.,* Can. Ent. iii, 66, figs. 25-27, life hist. ; Grt., 

 Bufl". Bull, i, 22, Darapsa; Bd., Sp. Gen. Het. i, 209, Everyx ; Hiilst, Bkln- 

 Bull, ii, 35; Grt., Bufl". Bull, iii, 222, Everyx; Butl., Tr. Zool. Soc Lond. ix. 

 546, Otus ; Saund.,* Fruit Ins. 244, figs. 2.53-257, Darapsa ; Fernald,* Sphing. 

 65, pi. V, figs. 1-3, Everyx; Grt., Can. Ent. xviii, 132, Ampclophaga ; Hawk 

 Moths 30. Ampclophaga. 



pampinatrix Sni. Abb.,-- Ins. Ga. i, p. 5.5, pi. 28, Sphinx; Harr.,* Sill. Journ. 

 36, 301, C hoerocampa ; Wlk., C. B. M. Lep. Het. viii, 183, pr. .syn.; Harr.,* 

 Inj. Ins. Flint ed. 327, figs. 152-154, et pi. v, fig. 4, life hist., Chwrocampa : 

 Morris in note 1. c. syn. pr. ; Grt., Pr. E. S. Phil, iii, 93 ; Eiley,* 2d Eep. 71, 

 figs. 44-47, all stages ; Pack.,* Com. Ins. 57, figs. 47 and 48. 



Var. cnotus Hiib., Zutr. 161, figs. 321-322, Otus; Morr. note to Harris' Inj. 

 Ins. Flint ed. 327, pr. syn. ; Grt., Pr. E. S. Ph. v, 81, pr. syn. ; Bufl'., Bull. ii. 

 226, pr. var. 



Head, palpi and thorax of a dark olive green, with a dull reddish triangular 

 spot posteriorly on thorax and a pale, ash colored stripe on the side, over the base 

 of the wings. The abdomen is dull greeni.sh, with dull reddish reflections. 

 Primaries of an olive gray color, with a curved olive green oblique band crossing 

 at basal third ; a brown discal point; a second oblique band starts from the outer 

 third of the costa and crosses to the middle of hind margin. This band is nearly 

 obliterated iti the middle. The outer part of the wing is shaded with olive green 



