( 675 ) 



A\'itli(iut this crest ........ I. 



Palini.s rough with Jong dispersed huirs . . I'LVl. I'cri/est. 

 Paljius without those liairs, or with very few . . . m. 



Anteuua setiform CLIII. Xylophancs. 



Auteuna distinctly incrassate distallv . . f)LV. Celerio. 



CLIII. XYLOPHANES.— Typus : caixbu.'i. 

 S/,l,iii.i- Linno, Syal. y<it. ed. x. p. 48;» (1758) (partim : type : oi-elhiUt). 

 Tlifir/ni Hubner, Verz. bek. Sriim. p. 13j (1822) (partim : type : iic:<sii!i = cq'icslri>:). 

 Isiiplcx id., I.e. (1822) (partim ; type: eaon). 

 Xi/lii//luiiics id., /.'■. (1S22) (partim ; type : antibnx). 

 OrcitH id., !.<■. p. i;j() (I«22) (partim : type : ;/iin,„(j = bii/ii.<). 



Chaci-ocaiii/iK, Harris (iioii Dupouchel, 1835), in Sillim. Joiini. .Sr. Art .\.\xvi. p. 3lH) (18.3',l). 

 .\fetoimliis Duncan, in Jard., Xui. Libr. xxxvii. p. 90 (1843) {mii 183G, type : merii). 

 rhilaiiipelus Burmeister (ikjh Harris, 1839), Sjilihii/. Bras. p. 58 (185(')). 

 Calliumma Walker, Lut Lep. Ins. B. M. viii. p. HW (1856) (partim : type : noiniiix). 

 ClMcroiaiiqxi, id.. I.e. p. 125 (1856) (partim). 

 Penjem id., I.r. p. 149 (1856) (partim ; type : paruellus). 

 Uanipm id., I.r. p. 182 (1850) (partim ; type : choeriliis = 2j!ioIiis). 

 Eiicheri/.r Boisduval, Spec. Gen. Lep. llet. i. p. 219 (1875) (partim ; type: lieastits). 

 Deilniirhe Grote, Ilaiok Moths N. Am. p. 30 (1886) (type: tersn). 

 Gnneniji,. Rothschild, Iris vii. p. 298 (1894). 



6 ? . Palpus simple externally, no indication of a cavity in the scaling at the 

 cud of the Hrst segment ; on the innerside the scaling at the end of the first 

 segment quite irregular, not dense, and second segment without brush of hair- 

 scales at upper angle. Antenna slender, not incrassate distally ; hook rather 

 long and gradual ; antenna of ? often with seriated ciliae. Eye-lashes vestigial 

 or distinct. Spines of abdominal tergites numerous, small and weak ones mixed 

 with strong ones, or, on the last segments, only one row of long and strong 

 conical spines {chiroii, tcrsa, etc.). Spurs of hindtibia always unequal, the outer 

 one short ; spurs of midtibia unequal or equal, the outer one shorter or longer than, 

 or as long as, the inner one, the relative length varying sometimes in the same 

 species. Midtarsal comb generally distinct, that of hindtarsus less obvious, but the 

 spines found to be somewhat prolonged when the scales are removed. Pulvillus 

 always large ; paronychium with two pairs of long lobes. 



S. Tenth tergite simple, truncate-sinuate at end, divided into two processes in 

 chiron ; sternite boat-shaped, transversely ribbed above at end. Clasper broadly 

 sole-shaped ; friction-scales large, few in number as a rule, but sometimes numerous 

 and rather small ; harpe ending in a generally small process. Penis-sheath with 

 diirso-apical edge incrassate, developed to a dentate ridge wliich is produced into one 

 or two processes in most sjjecies, one right, the other left. 



¥. There is no special armature in the ?, the vaginal plate being simj)le, 

 triangular. 



Larvae, as far as they are known, tapering in front ; with one or more ocelli. — 

 Pood-plants : Rabiaceae as a rule. 



Pupa : tongue-case not very prominent. 



Ilab. America. 



Fifty species. 



The genus is a very natural one. It is found only in America, and all the 

 American sjiecies belong to it,* no representative of the allied Old ^Vorld genera 

 ' Ili/strij: is so aberrant that we liavo tu put it into a genus of its own. 



