274 Mr. Warren on the Pt/ralidina collected 



coloured. Under side of fore wing dull fawn, of hind wing whitish. 

 Expanse of wings, 17 mm. 



One c? from Boa Vista, K. Jutahi, Feb. 1st, 1875. 



The only specimen is unfortunately much damaged, 

 but the peculiar swelling of the subcostal vein and the 

 semihyaline space below are good characteristics. 



Cyclocausta, n. g. 



Fore wings narrow, nearly three times as long as broad, with 

 the costa straight, the hind margin oblique. Antennae short, thick, 

 laminated, the joints overlapping each other above and smooth, 

 but finely angulated beneath. Palpi porrected, drooping, the 

 second joint thickly clothed with hairs, the terminal joint thin and 

 nearly bare, but they are somewhat denuded in the solitary speci- 

 men in the collection, and when intact probably resemble Lepto- 

 steges. Maxillary palpi short, feathery. Scaling of wings fine and 

 thin. Neuration : Fore wing, interno-median fold visible towards 

 the hind margin ; first median branch leaving the median at about 

 the middle of the wing, the second a little beyond, the third lower 

 radial still further, the latter forming the continuation of the 

 median, which is slightly undulated in the middle ; no disco- 

 cellular discernible ; first subcostal branch starting from the sub- 

 costal before the middle ; the fourth and fifth from the same point 

 where the upper angle of the cell should be ; the second and third, 

 one after the other, out of the fourth ; radial free from the upper 

 part of the disco-cellular region. Hind wing : Costal free, with two 

 short branches ; subcostal closely approximating, if not quite 

 anastomosing, with a single branch ; no visible disco-cellular ; first 

 median branch from before the middle of the wing ; second from 

 about the middle ; third and radial beyond from the same point ; 

 the radial as in the fore wing, forming a curved continuation of 

 the median. 



78. Cyclocausta trilineata, n. s. 



Fore wing white, slightly shining, with a dai'k brown costal 

 streak, which thins out towards the apex ; hind margin and two 

 transverse lines parallel to it bx'own. Hind wing white, with the 

 last three markings of the fore wing repeated. Head, thorax, and 

 abdomen white ; palpi bi'ownish. Under side clear white. Ex- 

 panse of wings, 18 mm. 



One J from the R. Jutahi, near R. Curnem, Jan. Ist, 

 1875. 



