Lord Rotlischild on new Ileterocera. 487 



to Ciicli otlier ; the apical qiiartor of the segment rather 

 8tron<^ly hioadeiieil, the whole .segment as long as the hind 

 coxa ami trochanters combined. Areolet very large, about 

 half as lon<; again on the radius as on the cubitus, the second 

 abscissa of the radius fully as long as the first and very little 

 shorter than the third. Second recurrent nervure received 

 just beyond one quarter from the base of the second cubital 

 cell. 



Hub. Virng Vai, Ifaut Mekong ; June 10, 1918. 1 ? . 



Easily distinguished by the dark fuscous wings fioni all 

 other known Oriental species of the genus. The name 

 Munsa, Tosq. (1896), has priority over Colganta, Cam. (1902), 

 which must sink as u synonym. 



Family BraconidaB. 

 Subfamily Helconia's. 

 Ilelcon icnicornis, Turn. 

 Helcon unicornis, Turn. Auu. & Mag. Xat. Hist. (9) ii. p. 172 (1918), 



Ilah. Tong Lap, Haut Mekong ; April 30, 1918. 



This species seems to resemble closely Wrouyhtonia cor- 

 nuta, (Jam., placed by that author among the Evaniidse, and 

 I think it quite possible that my name may have to sink as a 

 synonym. Cameron's description is not very clear, and was 

 taken from a s])ecimen with broken antenna*. But, on the 

 whole, I think there can be no doubt that the genus Wrouyh- 

 tonia belongs here, and should sink as a synonym. 



XLIX. — Description of a neio Genus and Two new Species of 

 IJtterocera. J3y Lord lioTllSCUILD, F.R.S. 



Spilosoma iynivagans, sp. n. 



cJ . Very closely allied to ert/thropJileps, Hmpsn., but with 

 less red on fore wings atid fewer pale markings on hind 

 wings. 



AntennjB black, pectus and legs sooty-slate, frons and 

 vertex rufous-oiange ; thorax rufous-orange, with a sooty dot 

 0!i tegulfo and sooty streaks on j)atagia ; abdomen above 

 rufous-orange ringed with sooty black, Iteiow "white. 



Fore wing slate-brown with orange-scarlet nervures ; three 

 ill-defined orange-scarlet jiatches on basal half of costa; two 

 rufous-orange spots in cell and one beyond; four irregular 



32* 



