( 332 ) 



divklcJ, liiiuler siirfiiee red at base. — Food-plants : Vacciniitm cori/mhosum, Gay- 

 lussacia friiidosa, occasionall}- Rosaceae, Andromeda. 



Pupa similar to that of excaecata. 



Hab. Canada to N. York and Pennsylvania ; a rare species. 



The hybrid between this species and Sphinx occUala was obtained by Mr. 

 Rix and described by Neumoegen, I.e. We have tliree specimens of it, which show 

 a mixture of the characters oi astyliis and ocellata. The thorn at the end of the 

 anterior tibia is present, but is not so long as in ocellata. The specimens of Mr. 

 liix's brood were, apparently, all males. The eye-patch of this hybrid is of special 

 interest (see above under S. /ninaicensis). 



In the Tring Museum 3 larvae, 1 pupa, 7 c?c?, 3 ? ? from New Jersey and N. 

 York ; 'i <S 3 asti/lt/s x ocellata. 



LXXXIII. AMORPHA.-Typus : popidi. 



Siihiiix Linn^, Si/sl. Nul. ed. x. p. 489 (1758) (partim ; type : ocellnlii). 

 Speclriiiii Scopoli, Inlr. Hhl. Nut. p. 413 (1777) (partim ; incl. type of Spliin.r). 

 Snierhilhiis Latreille, Hixl. Nat. Crust. Ins. iii. p. 4U1 (1802) (partim ; incl. type of S/iIiiiix). 

 Liuilliiil' Fnhridua, in lUig., Mmj. Ent. vi. p. 287. n. 42 (1807) (partim ; iocl. type of S/jliiii.r). 

 Dilina Dalm.an, Knngl . Vi-I. Al\ Ilmiill. xxxvii. p. 212 (18IC) (partim ; incl, type of tipliiiij'). 

 Piihliiliirliiis Hiibner, Vcrz. hek. Scluii. p. 141 (1822) (partim ; type: ileiitatHs). 

 Meriiitliiis (!). Meigen, ILindli. Sclini. p. 101 (1829) (correct, of Siiierliithiis!). 



Amm-jiha Hiibner, Tmlrim. p. 1 (ISOC) (num. mid. !) : Kirby, Cat. Lep. llrl. i. p. 710 (1892) (type : 

 2)opidi). 



Close to Sphinx, from which it does not differ very obviously in structure. 

 However, the two species, populi and a»iuren,-<i.<i, form a separate branch. There- 

 fore we do not hesitate to treat them as generically distinct from the eyed Sphinx. 



(? ? . Anterior tibia without ajiical thorn. Hiniltibia witii one pair of short 

 spurs. Tibiae not s])iuose. Pulvillus and jiaronychium present. Retinaculum 

 absent; frenulum also absent in S, but vestigial in ? (in S/Jiiiix the frenulum of 

 tlie (? is present, but reduced in length). Hindwing broad, costal angle broadly 

 rounded, distal margin obliquely sinuate between C and SC', j)roducod into a 

 sinuate lobe at SC" and R', this lobe more prominent than the teeth at the other 

 veins. Abdominal tergites spiny all over, the spines weak, very dense at and near 

 the apical edges, covered with long scales. Thorax unicolorons ; hindwing without 

 eye-spot. 



t?. Antennal segments feebly dilated laterad at the upper edge of the side- 

 grooves ; ciliae long. Harpe (PI. XXXIV. f. 24) with two rounded lobes distally, 

 both lobes visible in a ventral view of the end of the abdomen after the removal 

 of some scales, projecting mesiad beyond the ventral edge of the clasper. Penis 

 with s]iines at the edge of the sheath as well as upon the membrane of the duct 

 (PI. XXIX. f. 40). 



?. Vaginal plate witJnnit jjrocesses ; the proximal edge of the vaginal cavity 

 somewhat raised, wrinkled, more strongly chitinised than the rest of the vaginal 

 area, mesial ly sinuate or emarginate. 



Early stages essentially as in Sphinx, but pupa not glossy. — Food-plants : 

 Populus, Salix. 



Hab. Palaearctic Region, from Ireland to N. Africa and Amurland. 



Two species. 



