( 394 ) 



XGIX. ALEURON.— Typns: carinata. 



ffphhir, Perty (iwn Linm', 1758), Dd. Aiiim. Arl. (1834). 



En)/n, Walker [non Hiihner, 1822), L/s? Lep. his. B. .V. viii. p. 112 (185G) (partim). 



Cnlliommn, Clemers (iioii Walker, 1856), Joiirii. Af. N. Sc. Pkihid. iv. p. 142 (18.")9). 



Aleuron Boisduval, Cons. Lep. Guatemala p. 71 (1870) (type: carinala). 



Ti/lngiiutlttif: Felder, Jieixe Xm'ai'a, Lep. t. 75 (1874) (nom. hideser.). 



Calffimi/u Grote, Bull Biiffiih Soc. N. Sc. i. p. 279 (1874) (type : cliloroplera). 



G'Dieii/io Butler, Trans. Znol. Svc. Land. ix. p. 543 (1877) (type : carinrila). 



(S ? . Palpus large, prominent, first segment slightl)", second more or loss 

 distinctl}- angnlate laterallj- at apex, third very small. Head and thorax with a 

 mesial crest. Eye small, lashed. Antenna long, reaching lieyond apex of cell in 

 cJ, slender, not chibbed, gradually narrowed to a long hook, end-segment short. 

 Hind margin of merum of mid- and hindcoxa not angnlate. Abdominal spines at 

 the edges of the segments weak, elongate, those on the sternites especially weak, 

 partly modified to scales ; seventh sternite of ? trapezoidal, its apex not mem- 

 branaceons and not spinose. Tarsi slender, hindtarsus at least half as long again 

 as cell of hindwiiig measured along S(J ; midtarsus with comb — ie., the proximal 

 spines of the fourth row somewhat prolonged and thin. Distal margin of forewing 

 irregular, sinuate or lobed at apex, lobed or angnlate at R' ; SC' and R^ of hiudwing 

 from np])er angle of cell, R° central or below centre of cell, D^ transverse, D* 

 oblique, lower angle of cell acnte, U* about half the length of D' or not much 

 shorter than D^. 



(J. Ninth tergite asymmetrical, more or less twisted. Tenth tergite flat, hairy, 

 apically truncate or sinuate, about four times as long as broad in middle (PI. XLIII. 

 f. 4. 5) ; sternite much longer than tergite, curved downwards, produced into a 

 long, sharp point, edges of proximal half somewhat raised, especially in middle of 

 segment ; this single process is the result of asymmetrical development. CUaspers 

 large, not quite symmetrical ; a patch of numerous small friction-scales ; harpe of 

 right and left side unequal, the right ,one the longer, the left produced into 

 a long, cylindrical, distally acuminate jjrocess (PI. XLVl. f. 9), or the left jjrocess 

 reduced, the right one always prolonged (PI. XLVI. f. 12. 13). Penis-sheath ending 

 in a short dentate process, or cariniform at end (PI. LIII. f. 21. 23. 24. 37). 

 ¥. Vaginal orifice in a large cavity. 

 Early stages not known. 



IJab. Tropical and Subtropical America, exclusive of the West Indies, froni 

 Mexico to Southern Brazil. 

 Seven species. 



The obliteration of the left process of the tenth sternite of the cJ and the 

 asymmetry of the ninth tergite are peculiar features to which we have referred in 

 the Introduction. 



Key to the species : 



a. Abdomen with black belts . . . . . b. 



Abdomen without black belts . . . . . c. 

 h. Palpus very strongly angnlate, no white 



discal line on forewing . . . . 324. A. carinata. 

 Palpus feebly angnlate, a white discal line 



outside subcostal fork .... 326. A. cymograplnim. 



