( 61.:^ ) 



so sliarply defined, deeper in colonr, with a straiglit ]iaie liand, margin mneli more 



strong!}- scalloped than in ceratomioides. Hindwing : j)alo discal baml narrower 



than the black band separating if. from the snbcentral patch. 



Underside : pale j)Ostdiscal band of forewing as narrow as in ccratomioidii^^ bnt 

 straight. 



i . Both the tergite and sternite of the tenth abdominal segment longer and 

 narrower than in ceratomioidctt ; the harpe more compressed and somewhat stronger 

 dentate ; left process of penis-sheatii broader than in the allied species. 



Early stages not known. 



Huh. Sonth America : British Guiana ; Ecuador. 



In the Triug Museum 1 c?, 2 ? ? from : Rio Demerara ; Paramba, Ecuador. 



(U.I. Xylophanes anubus. 



Sj/hiiix aiiiiliiit: Cramer, Pk/i. F..fut. ii. p. 4G. t. lu'8. f. c (1777) (Surinain) ; Goeze, Ent. Ihytr. iii. 2. 



p. -m. n. (il (I7H(i) ; Fiibr., Spec. /)iy. ii. p. 152. n. 5.5 (1781) ; id., .^fant. i;/s. ii. p. il8. d. Ol) 



(1787) ; Gmel., Si/st. Nat. i. 5. 238-t. n. 88 (1790) ; Pabr., Eiit. %-•/. iii. 1. p. 370. ii. i;2 (179:i). 

 Xjjlophitnes tinubus, Hiibner, Verz. hek. Srhm. p. 136. n. 1450 (1822). 

 Chafrocaiiijm aiiuhux, Walker, Lint Lep. Lis. B. M. viii. p. 134. n. 13 (1850) ; But)., Trann. Zool 



Soc. Land. ix. p. 502. n. 50 (1877) (Rio de Jan.) ; Druce, in Biol. Ceiitr. Amer., Lep. Het. i. 



p. 10. n. 6 (1881) (Nicaragua). 

 C'haerimt iiipa nitkhila Clemens, Jnurii. Ac. X. Sc. Pldhid. iv. p. 151. n. 37 (1859) (Mexico) ; Bull., 



/.'•. p. 564. n. .58 (1877) (Mexico) ; Druce, I.e. i. p. 11. n. 12 (1881) (Mexico ; Guatemala; 



Nicaragua ; Chiriqui ; Ecuador). 

 ClwcrdcwiijM nitiduhi. Morris, Cut. Lep. X. Am. p. 20 (1800) ; Clem., iti Morris, .S'v/». T.ep. X. Am. 



p. 173. n. (! (1802) ; Druce, /.-■. Snppl. p. .305 (1H90) (Mexico ; Guatemala : Costa Rica). 

 Chocrorampa larris Grote & Robinson, .!//«. Lye. X. Yncl viii. p. 350. t. 14. f. 1 (?)(1«07) 



(Mirador, Mexico) ; Boisd., .s>«-. (ieii. Lep. Hit. i. p. 205. n. 53 (1875) (Mexico). 

 Choerocaiiipa miradoris id.. I.e. sub n. 53 (1875). 

 '^Chuerocampa nlcides id., I.e. p. 260. n. 54 (1875) (Cayenne). 

 Choerocamjiu anuhus id.. I.e. p. 206. n. .55 (1875) (Cayenne) ; MuscLl., Verh. Zoul. But. Gen. Wien 



x.xvi. p. 350 (1876) (Surinam). 

 Chcierociimpii iilcide.t, Butler, I.e. p. 031 (1877) (= awihiis). 

 Theretra iinuhiix, Kirby, Cut. Lep. Het. i. p. 052. n. 23 (1892). 



Theretra iileide.<, id.. I.e. n. 24 (1892) ; Bonningh., /Ws- xii. p. 128. n. 54 (1899) (Rio de Jan.). 

 Theretra mikhdii, Kirby, /..-. p. 658. n. 94 (1892). 

 Theretra nitiduhi var. a. Choer. laerix, id.. I.e. sub n. 94 (1802). 



c??. The large material of this species which we have e.xamined exhibited 

 considerable variation. The more extreme individuals have been described as 

 distinct s])ecies, and we admit that the dift'erences are so obvious that one might 

 easily be induced to consider them of specific value. But the numerous specimens 

 which connect the extremes with one another show this conclusion to he invalid. 



As in ceratomioides the external spur of the midtibia is somewhat shorter than 

 the internal one. Fresh specimens have a greenish tint. Abdomen with three 

 dorsal lines of which the middle one is more distinct, or with a mesial line 

 accompanied by two series of dots, or with only these series of dots : the type of 

 alcides has lines. Spines of posterior tergites uniseriate. 



Wings, abore. Forewing : with or without a dark cloud on disc beyond eel 



7 oblique lines of which the third is the heaviest, the lines posteriorly sometimes 

 more, sometimes less, oblique, the three proximal ones often vestigial or indicated 

 by dots on the veins, the three external ones also feeble or even absent, the most 

 distal, one, however, at least indicated Iby more or less heavy nerve-dots; the 



fourtlwline the heaviest, reaching hinder margin in middle or at apical third. 



Hindwing : the black colour variable in extent, the pale discal patch being often 



