( 433 ) 



Key to the sjiecies : 



a. Hiiulwiug with 3eIlovv disctil baud 



Hindwing without yellow discal band . 

 I). Abdoiueu without white belt on segment 4 . 



Abdomen with sharply marked broad white belt . 



c. White discal spots three in number, the upper 



one largest, often divided ..... 



White discal spots four or five in number, not 

 divided ........ 



White discal spots four to seven in number, some 

 of them divided 373. S. fadus. 



3fiy. Sesia ceculus. 



Sphinx ceculus Cramer, Pi//). Ex. ii. p. 80. t. 14G. f. G (1777) (Surinam). 



Sphinx steUatarum ^ Sphinx ciculuf: (!), Gmelin, Sy.tt. Xat. i. 5. p. 2387. n. 27 (1790). 



Psilhyros ceculus, Hiibner, Verz. hek. Schm. p. 132. n. 1411 (1822). 



}fncrn(jlossa ceculus, Burmeister, Sphinq. Brax. p. 73. n. 4 (1856) (Colombia ; Guiana) ; Walk., 

 List Lep. Ins. B..M. viii. p. 88. n. 5 (185(;) (Para ; Me.xico) ; Clem., Journ. Ac. Nat. Sc. Philad. 

 iv. p. 1.'52. n. 7 (1857) (S. Am. ; Mexico) ; Morris, Cat. Lep. X. A. p. 17 (1860) ; Clem., in 

 Morris, Syn. Lep. N. A. p. 151. n. 3 (1862) ; Boisd., Spec. Gen. Lep. Bet. i. p. 359. n. 45 (1875) 

 (Cayenne ; Brazil ; Colombia) ; Moscbl., Verh. Zool. Bol. Ges. M'ien xxvi. p. 351 (187G) 

 (Surinam) ; Bonningb., 7//.5 xii. p. 134. n. 76 (1899) (Rio tie Jan.). 



Eupi/iTho(jlns:<iiin ceculus, Grote & Rob., Proc. Ent. Soc. Philad. v. v. 150. n. 10 (1865) ; Druce, 

 Biol. Centi: Anier., Lip. Uet. i. p. 2. n. 2 (1887) (Mexico ; Guatemala ; Nicaragua ; Chiriqui ; 

 Colombi.i ; Ecuador ; Trinidad ; Guiana ; Para) ; Kirby, Cat. Lep. TIet. i. p. 636. n. 2 (18112) 

 (S. & C. Am.) ; Druce, I.e. Suppl. p. 299 (1896) (Brit. Hond. ; Guatem. ; Panama). 



Kupyrrhoglossuni ? ceculus, Butler, Trans. Zuol. Soc. Land. ix. p. 531. n. 2 (1877) (Para ; Mexico). 



Eupyrrhoglossum ceculus, Kaye, Trans. Ent. Soc. Lond. p. 140 (1901) (Trinidad). 



c? ? . Variable in size. The discal band of white semitrausparent spots of 

 tantalus and allies represented above and below by a dot R^ — M', which is, however, 

 often absent. Head and thorax as in tantalus without mesial crest ; SC* and SC° 

 of forewiiig fused at end as in tantalus ; antenna slenderer, with a longer and less 

 abrupt hook, agreeing with that of Eupip-rhoglossum sayra. Yellow band (^f 

 Ijindwing narrowed in and before middle, seldom of even width, costal half often 

 partly obsolete. Abdomen with two orange j>atches, sometimes with only one, base 

 of fifth tergite also often orange laterally. 



S . Penis-sheath (PL LIV. f. 14) : a short whip, which is not 4aite the 

 length of the diameter of the sheath, ending in a tubercle and bearing the usual 

 two apical sensory haiis ; two to four apical spines at the right side ; five to eight 

 sjiines on the left side arranged in one row, all very long and pointing proximad, 

 differing in this respect remarkably from tlie corresponding s2)ines of fa(li(.'< 

 and allies. 



?. The small vaginal orifice (PI. XLl. f. 2) lies in a groove or cavily formed 

 by a rather jirominent antevaginal ridge and the apical edge of the vaginal plate ; 

 orifice concealed by the antevaginal ridge in a ventral view, being indicated in figure 

 by a ring of dots. 



Early stages not known. 



Hah. iS'eotropical Hegion : Mexico to Bolivia and Soutliern Brazil ; not on the 

 AVest Indies ? 



In the Tring Museum 50-odd specimens from : Guatemala ; Colombia ; 

 Venezuela; Brit. Guiana ; Peru ; Ecuador; Bolivia ; Blumenau. 



FF 



