HETEROCEROUS LEPIDOPTERA. 103 



guttis ndhuc exterioribus nigricantibus orbiculari e puncto albo reni- 

 forrai magna nigricante bipimctata fascia marginal! cervina lineam 

 testacearu angulosam hicludente. 



Male. Ferruginous-brown, fawn-colour beneath. Frontal tuft 

 prominent. Palpi clothed with very short hairs, rising higher than 

 the vertex ; third joint more than half the length of the second, 

 slightly decreasing in breadth from the base to the tip, which is 

 rounded. Antenna setose. Abdomen fawn-colour, not extending 

 beyond the hind wings, tapering from the base to the tip; two large 

 erect tufts at the base ; apical tuft small, pale cinereous at the tip. 

 Femora and tibire densely fringed. Wings fawn-colour along the 

 exterior border. Fore wings acute, mostly covered with cinereous 

 bloom ; two cinereous transverse antemedial brown-bordered lines ; 

 first very near the base, undulating, retracted near the costa ; second 

 nearly straight; a deep black heart-shaped testaceous-bordered spot 

 near the interior border between the lines ; three zigzag brown lines 

 beyond the second cinereous line ; an exterior straight oblique brown 

 line, which is abruptly retracted near the costa, and has near its 

 outer side an irregular row of black dots ; an incomplete zigzag 

 testaceous line in the fawn-coloured part ; orbicular mark forming a 

 white point; reniform large, nearly elliptical, including two blackish 

 points. Hind wings with markings like those of the fore wings on 

 the inner side of the fawn-coloured part near the interior border. 

 Length of the body 10 lines; of the wings 24 lines. 



2. THERMESTA PROMPTA. Mas. Fusca, palpis erectis gracilibus 

 vix arcuatis verticem longe superantibus articulo 3o lineari acuto 2o 

 breviore, antennis setosis, abdomine lanceolate alas posticas longe 

 superante fasciculo basali parvo, pedibus gracillimes, alis breviusculis 

 sat angustis lineis duabus obliquis fuscis la postmedia subangulosa 

 apud costam retracta et cinereo marginata 2a submarginali undulata 

 supra venas conspicua punctis submarginalibus nigricantibus lunulis 

 marginalibus nigris cinereo marginatis, alis anticis linea antemedia 

 fusca angulosa reniformi fusco marginata margine exteriore vix 

 augulato. 



Male. Brown. Body cinereous beneath. Palpi slender, com- 

 pressed, erect, hardly curved, much longer than the breadth of the 

 head and rising much higher than the vertex ; third joint linear, 

 acute, shorter than the second. Antennae setose. Abdomen tapering, 

 with a small tuft at the base, extending much beyond the hind 

 wings ; apical tuft small. Legs smooth, very slender. Wings rather 

 short and narrow; two oblique brown lines; first line postmedial, 

 very slightly zigzag, retracted and cinereous-bordered near the costa 

 of the fore wings; second submarginal, undulating, distinguished on 

 the veins, accompanied by blackish points ; marginal lunules black, 



