170 TRANSACTIONS OF THE [1892 



at inner end of basal joint. Pronotum a little less 

 expanded than in 0. imbellis Walk., almost acute angled, 

 the margin before the angle short a little curved, the 

 margin behind the angle a little sinuated, and then 

 curved inward at origin of the wings ; incisures of the 

 surface linearly brown, as also the lateral margin 

 anteriorly, and behind the outer angle is a lunate 

 blackish spot, the posterior broad margin and lateral 

 expansion greenish ; mesonotum broad, moderately con- 

 vex, with two obconical marks at base, exterior to which 

 each side is a similar but obscure and longer mark 

 extending almost to the. tip, posterior part of the disk 

 crossed by a brown band composed of three angular 

 spots; the surface more or less covered with sericeous 

 prostrate pubescence; the cruciform dorsolum prominent 

 piceous, with the sinus in front deeply and abruptly 

 incised, and the posterior lobes broadly rounded. Oper- 

 cula about one-fourth the length of the abdomen, greenish 

 testaceous, narrowly separated, almost quadrate, with 

 the posterior margin feebly curved, and the lateral mar- 

 gin reflexed, and slightly sinuated ; the drums uncovered 

 for about one-half of their inner surface, with their 

 exterior cover inj3.ated. Legs greenish yellow, the 

 anterior femora short and stout, with two stripes above, 

 angular marks at base and a band at tip ; the tips of all 

 the tibiae, an obscure band across their middle, and the 

 tarsi piceous; posterior spine of the anterior femora 

 slender and oblique. Wing-covers and wings tinged 

 with milky white, the veins dark brown, but paler 

 towards the base, costal one tinged with green, first 

 apical areole long and narrow, marked with brown on 

 the inner end of the vein, but little shorter than the 

 third areole, first cross-vein quite short, acutely oblique, 

 waved, enclosed by a brown spot, second areole much 

 shorter and wider, third areole somewhat wider than the 

 second, very acute at inner end, with the cross-vein 



