Lepidoptera from Tropic d Africa. 535 



It is not, however, a Catephia, and it becomes necessary to 

 make a genus for it. 



OSTACRONYCTA, gen. nov. 



Palpi smoothly scaled, upturned, second segment reacliing 

 lialfway up the frons, third segment long; antenna} in female 

 simple, vertex slightly crested ; metathorax with a central 

 tuft ; proboscis fully developed. Legs : fore with long 

 fringes of hair; mid femora fringed with long hair, tibiae 

 scaled with short hairs; hind femora fringed with long 

 hair, tibite with a brusli-like pencil of hairs from tlie middle 

 to the tarsal joint. Neuration : primaries with vein 3 from 

 before, 4 from theangle, 5 from well above the angle, 6 from the 

 upper angle ; 7, 8, 9, and 10 stalked, 8 being given off from 

 9 close to the apex, which has a bar from 10 to form the 

 areole; 11 from the cell ; veins 7 to 11 are closely appressed 

 together under the costa. Secondaries with cell quite short, 

 with 3 and 4 from the angle, 2 and 5 from close to the angle, 

 6 and 7 from the angle, 8 bent down to the cell and anasto- 

 mosing very shortly. 



Type, Ostacronycta glaucopasta, B-B. 



Ostacronycta glaucopasta, sp. n. 



$ . Palpi with the base of the second and third segments 

 black, tips Avhite ; frons white; vertex pale greenish ; collar 

 glaucous ; thorax pale greenish, with a few brown scales. 

 Primaries grey, with pale green patches and black lines, 

 giving a pleasing glaucous appearance, the grey scales being 

 superimposed over the green ; base pale greenish, with 

 blackish dots ; antemedian area dark grey, edged externally 

 by a blackish line twice angled sharply; median area 

 greenish, postmedian area grey, in the middle of which is the 

 fine, very irregular, acutely angled, and serrate black post- 

 median line ; a pale green costal patch extends through this ; 

 terminal area greenish, with termen finely black, very deeply 

 and definitely crenulate; a longish black dash just above the 

 tornus from the termen to the postmedian line. Secondaries 

 pure white, with the termen narrowly grey, which colour 

 extends finely along the veins tor a short distance. 



Expanse 42 mm. 



Hab. Nairobi (Jackson). 



Type in my collection. 



AcanthoUpes tandoana, sp. n. 

 <J . Head and thorax dove-grey, abdomen paler. Both 



