( <H)7 ) 



young larva paler, with a jiale ilor.su-latera! liiio from head to horn ; this colour 

 sometimes retained by the later stages. Horn short, pointed ; thorax somewhat 

 tapering froutad, ospeeially in adult larva. — Food-plants : Ejjilobiam: Ampclo])sis ; 



Pupa opaipie, rngnse, alidomcn very strongly pimetared, [)iiuctares of last 

 segments deep ; head at each side with a smaller tubercle at the base of the 

 tongue-case, and a larger but less projecting prominence before the eye ; cremaster 

 long, bifid, very strongly rugate at base, smooth at apex. 



Hub. Atlantic district of Nearctic Region. 



One species ; rather common ; flying at day-time, rarely at dusk. 



Near Froxcrpiiuis, from which it diti'ers in the antenna, the armature of the 

 til>iae, and the direction of the cross-veins of the wing, etc. 



o4'.». Amphion nessus. 



S/ihiiu- nessus Cramer, Pap. E.rot. ii. p. IG. t. 107. f. n (1777) (Virginia) ; Fahr., Sjier. l,is. ii. p. 14(). 



n. 2 (1781) ; id., Mant. Ins. ii. p. 9l'. n. 2 (17«7) : (Jmel, Si/sl. Nut. i. 5. p. -S.'u-'. n. 91 (1700) ; 



Fabr., Hut. S,/st. iii. 1. p. 355. n. 2 (17'J.i); Lep. \' Serv., Knr. MHh. x. p. 465. t. (iO. f. 1 (1825). 

 Sphhi.!- oryprt,, Houttuyn (noil Linni', 1758), Naturl. Hist. i. 11. p. 408. n. 4. t. 90. f. 1 (17(57) ; 



Mull., XaUirs. v. 1. p. 036. n. 4. t. 20. f. 1 (1774) (N. York) ; Auriv., Kan<jl. Sc. V,t. AL 



11,1 mil. xi.\. 5. p. 129 (1882) (= nessus). 

 .\ii,/,liioii iiessirs, Hiibner, Verx. heh. Sclnn. p. 1.35. n. 1444 (1822) ; Grote & Rob., Proi: Knt. Soc. 



Philad. V. p. 151. n. 12 (18G5) : Beth., Canad. Eiit. i. p. 10. 47 (1869) ; Bowl., ibid. iii. p. 143 



(1871) (Quebec, vii.) : Liotn., Ent. Cunti: i. p. 192 (1872) (N. York, vi.) ; Thaxt., Psi/chK i. 



(). 29 (1874) (Newton, Mass.. e. v.— m. vi.) ; Grote, Bull. Buffalo Sor. X. Si: i. p. 19 (1874) ; 



id., I.e. ii, p. 225. n. 20 (1875) : Uaulf., Oiiiad. Ent. vii. p. 241 (1875) (Montreal, vi. vii.) ; 



Butl., Triius. Z„ul. Soc. Loud. ix. p. 535 (1877) ; Grote, I.e. iii. p. 221. n. 22 (1877) (N. York ; 



Can. ; Mass. ; Penn.) ; Jew., Cwuid. Ent. xii. p. 231 (1880) (Ohio, larva on Epil. color.) ; 



Pilate, Puiiilio ii. p. 66 (1882) (Dayton, O.) ; Sand., ibid. ii. p. 147 (1882) (larva, first stage) ■ 



Fern., Caiuid. Ent. xvi. p. 21 (1884) (Orono, Maine) ; id., Sphiug. .V. Eugl. p. 20. n. 7 (1886) ; 



HoU., Cauad. Ent. xviii. p. 102 (1886) (Pittsburgh) : Grote, ibid. p. 131. n. 24 (1886) (Can., 



southward) ; id., Hitmk Mntlis N. Am. p. 28(18S6) : Smith, Trans. Ainer. Ent. Soc. xv. p. 125. 



t. 5. f. 3. 4 (genit.) (1888) (Canada to Georgia ; westward to Missouri, Iowa, Illinois) ; Edw. 



Bidl. U. St. X. Mus. XXXV. p. 38 (1889) (liter, rel. to metam.) ; Kirby, O/t. Lep. ll,t. i. p. 638.' 



u. 1 (1892) ; Beutenm., Bull. Auier. Mus. N. U. vii. p. 282. t. 2. f. 5 (1895) (N. York, v. vi.) ; 



Soule, i'.'i//i7(( vii. p. 212 (1895) (larva on Ampel. reitchi \ Massachusetts); Cross, Ent. Xews 



vii. p. 297 (189i;) (N. Hampshire). 

 Thyrcus'; uessus, Harris, in SiUim., Joum. Sc. Art xxxvi. p. 308. u. 3 (1839). 

 T/ii/reus nessus, Walker, List Lep. Ins. B. .U. viii. p. 99. n. 2 (1856) (X. York ; Orilla) ; Clem., 



Jouru. Ac. N. Sc. Philtid. iv. p. 136. n. 13 (1859) ; Morris, Cat. Lep. N. Am. p. 18 (1860) ; 



Clem., in Morris, Syn. Lep. N. Am. p. 157. n. 2 (1H62) ; Dimm. & Mann, Psi/che if. p. 67 



(1877). 

 I'oijocolun nessus, Boisduval, Spec. Gin. Lip. Hit. i. p. 31(1. n. 3. t. 1. f. 5. 6 (/., /;.) ( 1875). 

 'I'lii/rcus {Amphion) nessus, Andrews, Gniail. Eui. ix p. 19 (1877) (larva). 



6 ?. The yellow basal belts of the abdominal tergites 5 and (J, and the white 

 tVinge of the fourth tergite distinguish this insect easily from all other Sp/ihi(/i<lae. 

 In the pattern of the wings /tesaus comes near the species o'i Pro.ierj)inu.'<. 



The southern individuals, esjiecially those from Florida, are on tlie wlidle 

 deeper in tint than the northern ones. 



llab. Canada to Florida, westward to the Mississippi basin. 



In the Tring Museum 4 larvae, 1 pupa, 2';! 6 6 , \^'> ?? from: Maine; 

 Massachusetts; Long Island; N. Jersey: W. Virginia; .Sanford, Florida, vi. ; 

 Titus vii le, Florida, viii. 



