LEPIDOPTERA HETEROCERA. 851 



more determinate white dots; exterior border with white points; 

 reniform mark white-bordered, of the usual shape. Hind wings 

 with an indistinct undulating exterior line. Length of the body 7 

 lines ; of the wings Id lines, 



Rio Janeiro. In Mr. Fry's collection. 



Genus HYDARA. 



Mas. Corpus gracile. Fasciculus frontalis porrectus. Oculi 

 extantes. Palpi porrecti, compressi, subfimbriati, longiusculi ; 

 articulus 3us fusiformis, nudus, brevis. Antennae nudse. Pedes 

 glabri. Alee angustae ; aniicae subfalcatae, costa subconvexa, mar- 

 gine exieriore subdexo sat obliquo ; posticae valde breviores. 



Male. Body slender. Frontal tuft prominent. Eyes globose. 

 Palpi porrect, compressed, slightly fringed, a little longer than the 

 breadth of the head ; third joint fusiform, bare, not more than one- 

 fourth of the length of the second. Antennae and legs smooth. 

 Wings narrow. Fore wings subfalcate, slightly convex along the 

 costa, slightly bent in the middle of the exterior border, which 

 is rather oblique. Hind wings very much shorter than the fore 

 wings. 



1. Hydara Biconalis. 



Mas. Ochracea; pectus anticum albidum; abdomen cinereum ; 

 alee anticce schistacece, costa fasciisque tribus indeterminatis 

 albo notatis, fasciis la et 2a interioribus obliquis, 3a margi- 

 nali, margine exterior e vix denticulate, reniformi e macula 

 nigra; posticce albido-cinerece, fascia media schistacea. 



Male. Ochraceous. Palpi beneath and fore part of the pectus 

 whitish. Abdomen cinereous. Fore wings slate-colour; costa and 

 three bands irregularly ochraceous and marked with white ; first 

 and second bands interior, oblique ; third marginal ; exterior bor- 

 der hardly denticulated ; reniform mark distinguished by a black 

 spot. Hind wings whitish cinereous, with au irregular slaty middle 

 band. Length of the body 4? lines; of the wings 10 Hues 



Rio Janeiro. In Mr. Fry's collection. 



4e3 



