LEPIDOPTERA HETEROCERA. 621 



interior border, and with gilded yellow lunules along the exterior 

 border. Hind wings pale gilded cinereous ; fringe yellowish. 

 Length of the body 1\ — 8 lines ; of the wings 19 — 20 lines. 



The absence of the band near the base of the fore wings is the 

 most obvious character which distinguishes this species from the pre- 

 ceding one. 



a. Darjeeling. Presented by the Secretary of the India Board. 



Genus BITHRA. 



Mas. Corpus sat robustum. Proboscis mediocris. Palpi 

 erecti, verticem superantes ; articulus 3us linearis, 2o brevior et 

 gracilior. Antennae pectinatae. Abdomen basi latum, alas posticas 

 paullo superans. Pedes laeves, vix robusti; tibiae posticae calcaribus 

 quatuor longis. Alae anticse amplae, apice subrotundatae, margine 

 exteriore obliquo subconvexo. 



Male. Body moderately stout. Proboscis moderately long. 

 Palpi erect, rising higher than the vertex, nearly as long as the 

 breadth of the head; third joint linear, rounded at the tip, much 

 shorter and more slender than the second. Antennae moderately 

 pectinated. Abdomen broadest at the base, extending a little beyond 

 the hind wings. Legs smooth, hardly robust ; hind tibiae with four 

 long spurs. Wings ample. Fore wings slightly rounded at the tips; 

 costa straight; exterior border slightly convex, moderately oblique; 

 three superior veins ; discal fold distinct; four inferior veins; first, 

 second and third inferior veins approximate; third more than six 

 times further from the fourth than from the second. The pectinated 

 antennas of this genus distinguish it from all the species of Dipktera 

 with the exception of D. ccenobita, and from the latter it differs by 

 the greater length of the third joint of the palpi. 



BlTHRA SPIL0S0MOIDES. 



Mas. Alba ; palpi nigra trifasciati ; caput et thorax nigro 

 guttata; abdomen tuteum, guttis dorsalibus nigris ; alee 

 anticce fasciis quatuor ramosis guitaque discali fuscis ; posticce 

 cinereat,fusco marginatce. 



Male. White. Palpi with three black bands. Head with 

 four black dots. Thorax with eight black dots, of which four are 

 on the tegulae. Abdomen luteous, with black dorsal dots and with 

 a black subapical dot on each side. Fore wings with four ramose 



