( 422 ) 



ITi)uhvivg.% : deep oran<re, with a narrow blaok edge along costa and hind- 

 margin to anal angle. 



Underside similnr, lint in forewings the lower ^^ellow spot extends to the base 

 between the median and snbmedian veins. Face, vertex, patagia, and thorax 

 streaked, yellow and black ; tlio centre of thorax yellow ; abdomen yellow, with 

 black dorsal and lateral stripes. 



Exj)ans(' of wings : 08 mm. 



One ? from Reyes. Bolivia, Angnst 1895 (Stnart). 



34. Stenoplastis trimacula sp. nov. 



Foreivhips : smoky brown-black, with the veins finely pale ; a white hvaline 

 patch at base, above and below the median, the lower part towards liase marked liy 

 a black dash above, along median, and another below, along the snbmedian ; an 

 obliipie wliite hyaline patch beyond cell, snbdivided into three by the radials : a 

 white tripartite blotch before apex ; all the veins more broadly i)ale on the course 

 of the submarginal line ; fringe black. 



Ilindintu/s: white, with broad black border to hindmargin; the costal and inner 

 margins more narrowly smoky. 



Underside the same, bnt costa of hindwings white. Palpi black, with whitisli 

 basal joint : face white ; eyes witli white orbits ; vertex and thorax blackish, the 

 latter with white lines; abdomen dark grey; legs and abdomen beneath powdered 

 with white. 



Expanse of wings : 28 mm. 



One <J from R. Dagua, Colombia (W. Rosenberg). 



Tanaostyla gen. nov. 



Forewings : broad : the costa faintly cnn-ed : apex blunt : hindmargin 

 obliquely curved. 



Ilimhcings : narrow ; inner angle and hindmargin rounded : anal angle 

 obtuse. 



Antennae of <3 snbserrate, with fascicles of cilia; basal joint enlarged : palpi 

 npcurved before face ; tongue and frenulum well developed. 



ScdratioK : forewings, cell two-thirds of wing ; discocel hilar vertical, slmrt, the 

 subcostal and median veins being botli bent inwards towards end of cell ; first 

 median nervnle at three-fiftjis, second shortly before third ; radials normal ; 7, 8, 

 9, lu, stalked from before end of cell, 10 and rising before 7 ; 11 free. Hindwings 

 with discocellnlar obliqne, twice bent in middle ; costal apj)roxiraated to sul)costal 

 for nearly the whole length of cell ; radial from tlie angulation in iliscocellnlar ; 

 both subcostals and last two medians on very long stalks. 



Type : Tanaostyla diluciila sp. nov. 



3."). Tanaostyla dilucida sp. nov. 



Foreivings : semitransparent, hyaline white ; the veins and fnlds marked with 

 smoky fnscons ; costa broadly smoky fuscous for two-thirds, then narrower : a thick 

 smoky fuscous streak from costa along discocellnlar, narrowing off along vein '.i to 

 hindmargin, which is also narrowly smoky fuscous, becoming much broader across 

 the apex ; inner margin narrowly fuscous ; fringe smoky ; the jiale oval space 

 beyond the cell is whiter than the basal two-thirds. 



