62 Mr. W. Warren on new 



margin at base and the costa before apex are also more 

 yellowish ; base of fringes brownisii (fringes of fore wing 

 gone). Hind wing pale oclireous, with greyish suffusion. 

 Head, face, and thorax ochreous \ abdomen more cinereous. 

 Underside of both wings dusted with brick-red towards costa ; 

 hind wing yellowish ; hairs of the basal flap and costal tuft 

 pur|)lish brown. 



Expanse of wings IG millira. 



One female from S. Paolo. 



Idioblasta, gen. nov. 



Fore wing not elongate ; costa faintly curved ; apex 

 rounded; hind margin hardly oblique, vertically curved. 

 Hind wing rounded, with a very slight indentation below the 

 apex ; labial palpi porrected upwards, short ; terminal joint 

 indistinct ; maxillary palpi erect, widened at top ; tongue 

 weak ; ocelli present ; antennee laminated, basal joint 

 enlarged; legs stout j ovipositor of female exserted, long, as 

 in Hypsopijgia. 



Type Idioblasta lacteata, Warr. 



Idioblasta lacteata, sp. n. 



Fore wings very pale straw-colour, almost white, tinged 

 with oclireous in places ; a subbasal line black, running at 

 first obliquely outwards to the subcostal, then vertically con- 

 cave to the hind margin ; on either side of the centre are two 

 black lines, likewise vertical, concave inwardly, running 

 parallel to each other, the intermediate space divided into 

 three equal parts by two horizontal dark dashes connecting 

 the two cross lines ; hind margin narrowly fuscous, beyond a 

 submarginal line composed of black wedge-shaped spots ; a 

 dark reniform stigma is more or less hidden by the top hori- 

 zontal dash. Hind wing with a broadisli blackish border, 

 which fades off towards the inner margin ; fringes straw- 

 colour, as are the head, thorax, abdomen, and underside ; tips 

 of palpi darker; underside of fore wings with a broad black 

 blotch across the wing at two thirds. 



Expanse of wings 16 millim. 



One female, two males, Marquesas Islands. 



Idioblasta straminata^ sp. n. 



Fore wings yellowish buff; with two very indistinctly 

 marked cross lines, the tirst, vertical, at one third, the second, 

 outwardly curved, at two thirds, the first preceded and the 



