DISTANT— EHTNCHOTA. 43 



on each side, a discal white suffusion formed by small sjiots beyond middle, and two sub- 

 marginal white spots, one near apex and the other below it ; wings hyaline, the venation 

 and a broad marginal fascia black ; head short, transverse, the margins ridged and with 

 three longitudinal ridges, one central, the others sublateral ; face finely and densely 

 granulose, with three longitudinal ridges, the central i-idge straight, the other two sub- 

 lateral and curved ; clypeus with a distinct central ridge, which neither reaches base nor 

 apex ; rostrum reaching tlie intermediate coxae ; pronotum wdth a central longitudinal 

 ridge, on each side of which is a small tuberculous spot ; mesonotum with three longi- 

 tudinal ridges, one central, the others sublateral and united anteriorly at the apex of the 

 central ridge ; posterior tibias with two strong spines, one at and the other before apex ; 

 tegmina with the apical margin considerably shorter than the inner margin, the apex 

 obtusely roimded. 



In some specimens the white macular markings to the tegmina are ahi ost obsolete. 



Long. excl. tegm. 8 millim. ; exp. tegm. 22 to 23 millim. 



Locality. Mahe, Praslin. 



Division Nogodiniaria. 



OSAKA, gen. nov. 



Head including eyes a little broader than pronotum, eyes directed backward and almost 

 extending to the pronotal basal lateral angles ; vertex very short and transverse, the 

 anterior and posterior margins truncate, the former almost on a line with the anterior 

 margins of the eyes, tricarinate, the carinations continuous w^ith the same number on the 

 face, which is about as broad as long, the lateral margins moderately convex, distinctly 

 deflected towards base of clypeus, basal margin straightly truncate and obscurely ridged ; 

 clypeus with a strong central longitudinal ridge, the lateral margins more obscurely 

 ridged ; pronotum short, but nearly twice as long as vertex, its anterior margin truncate 

 between the eyes, luteral margins oblique, ihe posterior margin subangularly concavely 

 sinuate, strongly centrally longitudinally ridged ; mesonotum large, twice as long as 

 pronotum, centrally tricarinate, the central carination straight, the lateral carinations 

 deflected anteriorly and meeting at the apex of the central one ; tegmina much longer 

 than abdomen, about half as broad as long, ajjically widened and rounded, costal membrane 

 transversely veined, the radial area beneath it as far as stigmatal spot without veins, four 

 series of transverse veins defining five series of cellular areas, two at end of basal cell 

 longer than three discal near middle, these are followed by about six long cells, the ante- 

 apical cells more numerous and a little longer than the apical cells, some of which are 

 bifurcate, claval vein united to anterior claval margin at a little beyond its middle, and 

 again united with its posterior margin by two rather obscure but robust transverse veins ; 

 wings with two transverse veins near middle ; posterior tibise with two strong spines. 



6* 



