Heterocera from the Australian Region. 395 



almost obsolete; secondaries with an oblique discal series of 

 blackish dashes on the veins; otherwise as above; body below 

 whitish. Expanse of wings, 31 mm. 

 Viti Islands. 



Dysbatus, n. g. 

 Allied to Cosmia, but with more nearly the coloration of the 

 Honwptcridcc ; primaries triangular ; costal vein extending to 

 about thu-d fourth of costal margin ; subcostal vein five-branched, 

 emitting its first branch before the end of the cell, its second to 

 foiarth at a considerable distance beyond, the third and fom'th 

 forming a rather short fork to apex, the fifth emitted from the 

 posterior margin of the main vein a little before the emission of 

 second branch from the anterior margin ; the upper radial emitted 

 fi:om the anterior angle of the cell, and the lower radial from about 

 the middle of the disco-cellulars, which form a concave line; 

 median vein swollen and sinuous towards the base ; second and 

 third median branches emitted fi-om the same point at the posterior 

 angle of the cell; secondaries subpyiiform, the costal and abdo- 

 minal margins nearly straight, and the outer margin rounded and 

 sinuated ; costal vein running close to the subcostal to about the 

 middle of the cell, and thence diverging to apex ; subcostal forking 

 from the anterior angle of the cell ; radial obsolete, replaced by a 

 slender longitudinal fold from base to outer margin ; disco-cellular 

 veinlet inarched ; second and third mechan branches forking from 

 the posterior angle of the cell ; thorax broad, rounded ; head broad, 

 palpi short, compressed, with sharply defined quadrate fringe at 

 the base, porrect ; proboscis long and thick; antennas slender, 

 tapering, internally pectinated ; legs long, femora flattened, pos- 

 terior tibi» broad and flat, abdomen slender, laterally tufted. 



22. Dyshatus singularis, n. s. 

 Primaries above cinereous, tinted with pale brownish towards 

 base and external area ; crossed by six black lines, the first sub- 

 basal, oblique, the second at basal third curved, the third just 

 before the middle angulated upon the median vein and inarched 

 below it, the fourth crossing the disc like the third, but less strongly 

 angulated, the fifth very irregular, thick, undulated and dentated, 

 hmitmg the external area, the sixth submargiual, ill-defined, 

 excepting at apex, where it commences with an oblique black dash 

 costal border, excepting at apex, and a spot at the end of the cell, 

 . dusky ; an interrupted black marginal line ; fringe whitish spotted 

 with grey; secondaries greyish white, shghtly sericeous, with a 



