{ 436 ) 



with very regular short obIii[ue brown streaks ; fringe pale fawn-colour, with which 

 the hindmargin itself is slightly stained. 



Ilinfhnngs : similar, but the costal area white, without reticulations. 



Underside of forewings with costal area suffused with fuscou.s aud marked 

 with dark oblong spots formed of jiairs of lines, the costal edge with the same 

 tine strigae as above ; beds of black metallic scales at base and towards upper 

 end of cell ; a subcostal rufous streak, and a rufous patch below end of cell ; 

 the transverse strigae indistinct, rnfoiis and grey ; hindwings with a distinct 

 broad central and less distinct postmedian and marginal streak ; fringe as above. 

 Head and face dark brown ; thorax aud abdomen white. 



Expanse of wings : 32 mm. 



One ? from Chiriqui, Panama. 



Both wings are rather broad, the hindmargins faintly sinuous ; jialpi porrect, 

 the third joint finely spatulate, as long as the second. 



Family URANIWAE. 

 Aorista gen. nov. 



Forewings : ample ; costa curved, more strongly towards base and apex, which 

 is slightly produced ; hindmargin oblique, not curved. 



Ilimbcings : with apex rectangular, hindmargin straight to vein 4 ; a square 

 projection at the ends of veins 3 and 4 ; anal angle truncate, with t wo excisions 

 and a tooth at vein 2. 



Antennae of J short, pectinated ; ])alpi porrect, extending a little before face, 

 second joint fringed with scales below, third sliort, pointed ; tongue and frenulum 

 present ; hind-tibiae with four spurs. 



Neuration : forewings, cell half as long as wing ; discocellular hardly visible, 

 very fine ; vein 2 at four-fifths, 3 close before end ; 5 I'rom top end of cell, 

 G, 7 stalked; 8, 'J, lU stalked from three-fourths, 11 anastomosing with 12, and 

 10 with 11 : hindwings with 3, 4, and (!, 7 stalked, 5 from just above middle of 

 discocellular, which is very fine and slightly angled above middle. 



Type : Aorista alodia Dogn. {Zonosoma). 



Allied to Meleaba ithedaria) Wlk., but difteriug considerably in neuration. 



Hemioplisis H. S., Auss. Schm. pp. 26. 38. 83. fig. 480. 

 Decetiodes Warr., Nov. Zool. IV. p. 412. 



A ? example of a moth belonging to this family, lately received from Suapure, 

 Venezuela, is evidently identical with Herrich-Schaeffer's figure 480, which repre- 

 sents a <? of his species Hemioplisis drepanularia. Along with it came a S from 

 the same locality, but taken in February, whereas the ? was taken in June, which 

 is much more like the insect described by me as Decetiodes fallax, from Cucuta, 

 Venezuela. This (?, as well as the example of D. fallax, may eventually prove 

 to be both forms of the i of drepanularia, though varying both in coloration and 

 markings from the S of that species as figured by Herrich-Schaeffer ; but at 

 present it will be safer to keep them distinct. The genus Decetiodes, however, 

 must in any case sink to Hemioplisis H. S., with which it agrees in every 

 l)articular. In his remarks on the genus Hemioplisis (p. 38), Herrich-Schaeffer 



