LEPIDOPTERA HETEROCERA. 515 



Genus THYMTSTADA. 



Mas. Corpus gracile. Antennae latissime pectinatae. Pedes 

 laeves, graciles ; tibiae posticae calcaribus quatuor breviusculis. 

 Alae anticae latae, apice falcatae, margine exteriore bidentato, costa 

 basi subconvexa ; posticae subobtusae, margine exteriore angulato. 



Male. Body slender. Antennae very broadly pectinated. 

 Legs smooth, slender ; hind tibiae with four rather short spurs. 

 Wings broad. Fore wings falcate, acute ; exterior border with two 

 acute teeth, one near the tip, the other opposite the third inferior 

 vein ; costa slightly convex towards the base ; second inferior vein 

 much nearer to the first than to the third ; third about twice further 

 from the fourth than from the second. Hiud wings somewhat 

 obtuse at the tips ; exterior border angular in the middle. 



Most allied to Drepana, from which it may be distinguished by 

 the deeply pectinated antennae. 



Thymtstada tripunctata. 



Mas. Cervina ; alee anticce lineis duabus transversis denticulaiis 

 nigricantibas, spatio marginali snbnigricante lineam cervinam 

 angulosam includente, punctis tribus discalibus nigris; 

 posticce pallide cinerece, litura apud angulum interiorem 

 nigricante. 



Male. Fawn-colour, tinged with cinereous beneath. Fore 

 wings with two transverse denticulated blackish lines; first ante- 

 medial, less distinct than the second, which is postmedial ; a slightly 

 blackish marginal space in which there is a zigzag fawn-coloured 

 line ; three black points on the veins at the end of the discal areolet. 

 Hind wings pale cinereous; fringe fawn-colour; a blackish mark 

 by the interior angle. Length of the body 6 lines ; of the wings 

 18 lines. 



a. Hindostan. Presented by Sir J. Hearsey. 



Siculidae, Gn. 

 Siculodes, Gn. 



Fam. SICULIOE. 



Genus SICULODES, 



