( 3fi9 ) 



Sjjhhix nisticu, Schaller, Xatin/. xxiii [i. 50. t. 1. f. 11 (1788). 

 Cliniis phalark, Kirby, Cat. Lep. Met. i. p. 702. D. 1 (1892) (partim). 



c??. A small species, the larger e.^amples agreeing in size witii the smallest 

 oenotru.s. The sexes are dissimilar, and have been treated as distinct sjjecies by 

 several authors. The sexnal ditFerence in the I'orewiug is nearly the same as in 

 ello, the S possessing a longitudinal mesial band and an oblique posterior distal 

 streak, which are not present in the ? , or are only vestigial in that sex ; or the 

 sexes are almost identical. 



6. Lobes of the tenth tergite pointed, shorter than the long and slender 

 processes of the sternite. Process of harpe (PI. XLV. f. 22) long, somewhat 

 knife-shaped, obtuse or slightly spatulate, curved, notched or sinuate at end. 



Early stages not known. 



Hub. Tropical and subtropical America. 



Two subspecies, perhaps four. 



a. E. obscura con/ormis, subsp. uov. 



S ? . Sexes similar ; S without a longitudinal streak on the forewing, and 

 having thorax as grey as the ? . Distal margin of hindwing rather darker in 

 upper half than in the ordinary form, and the postdiscal line of dots more distinct. 



Ilab. (iiala]iagos Is. : Albemarle, end of March to May 19U2 (Beck) ; ti/pe : 

 top of crater, S.E. Albemarle, 27. iii. lyu2. 



In the Tring Museum 4 <?c?, 4 ? ?. 



b. h\ obsrto-d obscura. 

 Sphinx obscui-a Fabricius, I.e. 



Erinnyis stheiio Hiibner, Sdininl. Ex. Schiii. iii. t. 37 (1824?) (Sta. Cruz). 

 Aiiceryx ohscuni, Walker, List Lep. Inx. B. M. viii. p. 226. n. 7 (18513) (partim) ; Clem., .Journ. Ac. 



y. Sc. Philwl. iv. p. 176. n. 74 (18.59) ; id., in Mcrris, Syii. Lep. N. Am. p. 201. u. 2 (1862) ; 



Boisd., Spec. Ucii. Lep. Met. i. p. 132. n. 20 (1875) (Antilles); Moschl., Verh. Zool. Bot. Ges. 



Wkn xxxii. p. 332 (1882) (Surinam). 

 Anceryx stheim, Lucas, in Sagra, Hist. Cuba vii. p. 298 (1850) ; Dew., .Mitth. .Miiiich. Ent. Ver. i. 



p. 92 (1877) (Porto Rico). 

 Erinnyis pullida Grote, Proc. Ent. Soc. Fhilail. v. p. 78. t. 1. f. 1) ( ? ) (1« J5) (Cuba) ; id. & Rob., 



ibid. p. 168. n. 113 (1865). 

 Dilophoiiota jHilliilit Grote, /.-■. vi. p. 329 (1867) (Cuba) ; Grote, Trans. Ainer. Ent. S„c. iii. p. 185 



(1871) (Cuba) ; Butl., Tmns. Z„oL Soc. Land. ix. p. 604. n. 8 (1877) (= ^ yutluralis) ; Gundl., 



I.e. p. 225 (1882). 

 Erinnyis cinerosa Grote & Rob., Proc. Ent. Soc. Philad. v. p. 1()8. n. 71 (1865) (iioiii. indescr.) \ 



Grote, Ann. Lye. N. York viii. p. 201 (1867) (Cuba). 

 ■ Dilophonohi obscura, id., Bull. Buffoh Soc. N. II. i. p. 27 (1874) (Pennsylvania) ; id.. I.e. ii. p. 228. 



n. 68 (1875) ; Butl., Trans. Zool. Soc. LnwI. ix. p. 604. n. 7 (1877) (Mexico ; Haiti) ; Druce, 



in Biol. Centr. Amrr., Lep. Net. i. p. 19. n. 4 (1881) (Mexico ; Chiriqui) ; Grote, I.e. iii. p. 225. 



n. 71 (1877) (Pennsylvania; S. Carolina); id.,C<niad. Ent. xviii. p. 136. n. 90 (1886) (S. States); 



Smith, Trans. Amcr. Ent. Soc. p. 157 (1888) (PaV ; Texas) ; Kirby, Cat. Lep. Het. i. p. 697. 



n. 13 (1892); Rothsch., Nov. Zo(.L. i. p. 75 (1894) (partim) ; Druce, I.e. Snppl. p. 313 (1896) 



(Mexico ; Guatemala) ; Grant, Canad. Ent. xxx. p. 264 (1898) (Orillia, O., Sept. 20). 

 * Anceryx rhaebus Boisduval, Consid. Lep. Guatemala p. 72 (1870) (Honduras ; Mexico) ; id., S^icc. 



Gen. Lep. Met. i. p. 131. n. 18 (1875). 

 Dilophonota stheno, Gundlach, I.e. p. 221 (1882) ; Bonningh., Iris xii. p. 121. n. 35 (1889) (Rio de 



Jan.). 

 Dilophonota rhaebus, Druce, I.e. p. 19. n. 5 (1881) (partim). 



<??. Sexes dissimilar, the 6 having a darker thorax than the ?, and 

 possessing on the forewing a blackish streak which runs from the base towards the 

 apex. 



B B 



