446 PYEALID^E. 



black ; the 3rd joint of palpi black ; the tufts behind the eyes 

 ochreous. Fore wing dingy brown, the veins fuscous black ; 

 diffused curved fuscous subbasal, anteroedial, and postniedial 

 lines ; black spots in cell and on discocellular. Hind wing pale 

 reddish brown. 



Hah. Murree (Harford). Exp. 20 milliin. Type in B. M. 



Genus HELIOTHELA. 



Heliothela, Guen. Belt. $ Pyr. p. 152 (1854). 



Type, H atralis, Hiibn., from Europe. 



Range. Palaearctic, Ethiopian, Oriental, and Australian regions. 



Palpi porrect, the 2nd joint fringed below with hair towards 

 extremity, the 3rd prominent ; maxillary palpi triangularly scaled ; 

 antennae of male somewhat thickened and minutely ciliated ; legs 

 short, the tibiae smoothly scaled, with the spurs moderate ; wings 

 short and broad. Eore wing with vein 3 from close to angle of 

 cell ; 4, 5 from angle ; 7 well separated from 8, 9 : 10 free. Hind 

 wing with vein 3 from close to angle of cell ; 4, 5 from angle ; 

 6, 7 from upper angle, 7 anastomosing with 8. 



5276. Heliothela ophideresana, Wlk. Cat. xxviii, p. 459; C. fy S. 

 no. 4526. 

 Heliothela pusilla, Butl. III. Het. vii, p. 93, pi. 134. fig. 15. 



Black-brown ; abdomen with 

 pale rings. Eore wing irrorated 

 with a few steel-blue scales, which 

 form a small spot at end of cell ; 

 an oblique whitish postmedial 

 band from costa to vein 5 and 

 more prominent on underside. 

 Hind wing orange-yellow, with a 



Heliothela ophideresana, <?. f . black med i ial P at ch from costa to 



lower angle of cell; a very broad 

 marginal black band, widest at apex and from vein 2 to anal 

 angle. 



Hah. Dharmsala ; Ceylon; Madagascar; Australia. Exp. 17 

 millim. 



Genus SI1LETHISTIS, nov. 



Type, S. tricolor, Butl. 



Range. N.W. Himalayas ; Assam. 



Palpi porrect, the 2nd joint fringed below with long hair, the 

 3rd prominent; maxillary palpi minute; frons with a rounded 

 prominence : antennae annulated. Eore wing with veins 3, 4 

 from angle of cell; 5 from well above angle; 6, 7, 8, 9, 10, 11 

 given off at regular intervals. Hind wing with veins 3, 4 from 

 angle of cell ; 5 from middle of discocellulars ; 6, 7 from upper 



