462 On a new Genus of North- American Moths. 



OGDOCONTA, gen. nov. 



Differs from Telesilla in its shorter primaries, with costal 

 margin more decidedly arched towards apex, the subcostal 

 furca, formed by the third and fourth branches, considerably 

 longer ; the rudiment of the discocellular veinlet of secon- 

 daries almost entirely obliterated ; middle tibia decidedly 

 shorter instead of longer than the femur, the interior spur 

 longer, tarsus much more slender and longer ; posterior legs 

 longer and with longer tibial spurs ; labial palpi with slightly 

 longer terminal joint ; abdomen less strongly tufted. Type 

 P. cinereola. 



The generic name is suggested by the markings on the 

 primaries of 0. cinereola. 



The Japanese i( Miana " segregata, Butler (Ann. & Mag. 

 Nat. Hist. ser. 5, vol. i. p. 85, and 111. Typ. Lep. Het. ii. 

 p. 25, pi. xxix. fig. 5), is a Telesilla. 



I have been unable to identify Bremer's Placodes fusco- 

 maculata from North China ; it may be not even allied to 

 Telesilla. 



