LASO>'IA. 395 



costal fuscous spot near apical area and a small fuscous spot 

 (sometimes absent) above middle of apical margin. 



Length excl. tegm. 5^ ; exp. tegm. 16 millim. 



Hab, Assam ; Marglierita {Doherty). Darjiling {fide Melichar). 

 Tenasserim ; Myitta (Doherty). 



1985. Genus ? prominens, lVcM\ (Ricania) Im. Sanml., Horn. p. 48 

 (1858) ; Atkins. J. A. S. Beng. Iv, p. 57 (1886) ; Melich. (gen. ?) 

 Ann, Hofmus. IVien, xiii, p. 341 (1898). 



" Dull testaceous ; head forming on each side a large vertical 

 compartment, in which the eye and the antennae are seated ; 

 vertex transverse, very short, mostly covered by the pronotum ; 

 face with transverse blackish marks, very much longer than broad, 

 with elevated borders and with three slight keels, the middle one 

 shortened, the pair converging towards the face (clypeus '?), where 

 they are connected : face (clypeus ?) lanceolate, keeled ; pronotum 

 very convex along tlie fore border, with two slight keels ; meso- 

 notum M ith a brown interlined disk and with two blackish dots on 

 each side ; metanotum and abdomen dark brown, the latter with a 

 pale testaceous stripe on each side ; legs testaceous ; femora slightly 

 streaked with black ; wings greyish-vitreous, exterior and interior 

 borders brown, veins black ; tegmina with brown marks along 

 the costa and with a few brown marks elsewhere, and with an 

 irregular whitish subapical band ; stigma whitish, veinlets regular 

 along the costa and along the exterior border, where they are 

 mostly forked ; discal veins and veinlets irregular, the latter 

 numerous; wings with very few veinlets." {WaJlcer.') 



" Length, body 4 ; wings 12 lines." 



Hah. «ylhet {fide Wullcer). 



I have "been unable as yet to find this species in the National 

 Collection. Its long face clearly locates it in some genus belonging 

 to the Nocjodiniaria, but the " two keels " to the pronotum is a 

 disturbing factor. 



Genus LASONIA. 

 Lasouia, Melich. IJoni. Fami. Ceylon, p. 87 (1903). 



Type, L. JdrJccddyi, Melich. 



Distribution. Ceylon. 



" Head with eyes as broad as pronotum ; vertex not extending 

 beyond eyes, broader than long, roundly curved in front, its 

 margins ridged ; face longer than broad, slightly curved downward, 

 rounded on sides and ridged to clypeus, on upper margin straight, 

 medially ridged ; clypeus somewhat long, triangular, arched, not 

 ridged ; eyes large, semicircular ; ocelli absent ; antennae very 

 short ; pronotum a", long as vertex, produced in front, somewhat 

 laminate between eyes, posteriorly straight, its disk smooth, indis- 

 tinctly ridged ; mesonotum short, triangular, broader than long, 

 ■with an oblique curved ridge which does not extend to posterior 

 margin of pronotum ; tegmina narrow, four times as long as 



