Lepiduptera of the Amazons. 67 



margin white, a subapical ferruginous transverse streak ; 

 a submarginal series of black dots; secondaries white, a 

 brown subcostal basal streak ; a dentated blacldsh patch 

 at centre of outer border ; body below white ; sides of 

 palpi (excepting at their inferior margin) and tibiae above 

 dark brown, tarsi dark brown banded with white : expanse 

 1 inch 8 lines. 



Amazons (exact locality and date entirely obliterated). 



Leptosphetta, n. gen. 



Aspect of Sphetta, but readily distinguished by the 

 much narrower primaries, long falciform palpi which pro- 

 ject noticeably above the top of the head ; antenna3 

 minutely pectinated as in Calledema; body extending a 

 little beyond the secondaries ; hind tibise and back of 

 pectus clothed with dense long hair; secondaries below 

 with a patch of thickened scales over the end of the cell ; 

 cell rather short, median vein four-branched, the last two 

 branches emitted from a footstalk beyond the cell. Type, 

 L. rahdina. 



116. Leptosphetta rabdina, n. sp. 



Primaries above olive-green, changing to flesh colour 

 towards the internal border ; costal border, excepting at 

 base and apex, occupied by a bright silver streak ; one or 

 two vague central transverse blackish lines and a black 

 spot at the end of the cell, a whitish-bordered dentate 

 sinuate blackish discal line ; a marginal series of black 

 spots ; fringe whitish, intersected by an olivaceous line ; 

 secondaries grey with a pinky shot, ft'inge white ; body 

 sordid whitish, collar and prothorax olive-green ; abdomen 

 Avith a basal ochraceous belt, anal segments ochraceous ; 

 palpi ferruginous at the sides ; wings below grey, tinted 

 with lake-red; primaries, with the discoidal area blackish, 

 costal border sordid lake -red towards the base, sandy 

 yellowish towards the apex ; a marginal series of black 

 spots, fringe whitish ; secondaries with a black patch over 

 the end of the cell, fringe whitish ; body below whitish, 

 collar reddish ; anterior legs very slender, brown above, 

 banded laterally with blackish ; posterior tibias and back 

 of pectus clothed with long lake-red hair : expanse 1 inch 

 6 lines. 



Rio Jutahi, near Rio Curnem, 29th January, 1875. 

 F 2 



