2(;4 



bent apical portion much shorter and the spatulate apex slightly- 

 larger. 



Leniitli ;jiuin. ; teginen 4.4111111. 



ITab. Telok ^\ycr, Borneo. 



(2) B. incertus sp. nov. {$) 



The color and marking of this species is nearly the same as certus 

 but the male genitalia differs as follows: Ventral emargination not 

 so deep, median process broader, the spines at the sides of emargina- 

 tion broader and shorter, the lateral edges project as broad angles, the 

 right much longer and more acute than the left; anal segment long, 

 anus about third from base, the apex pointed, turned downward 

 slightly and swollen; styles not so flat as in certus, the apical portion 

 shorter and turned in an opposite plane to the base, the apical por- 

 tion on left side being pointed and curved, not spatulate. 



Length o.4mni. ; tegmen 5.2iiini. 



Hab. ^lowong, Borneo. 



(3) B. shnulans sp. nov. 



Color and marking as in certus but the hyaline spots larger. Ven- 

 tral edge of pygophor deeply emarginate, the median process thin and 

 spine-like, the sides roundly produced, forming a continuous curve 

 with the sides of emargination without any spines on edge; anal 

 segment large, anus near base, beyond anus broadened and flattened, 

 the apex drawn out and slightly spatulate, turned downward and 

 split down the middle, forming two contiguous processes; styles broad, 

 flat, apical portion curved slightly outward, rounded at apex, a round 

 emargination on inner edge near base. 



Length 3inm. ; teginen 5mm. 



Hab. ]\rowong, Borneo and Malay Peninsula. 



(4) 5. magnus sp. nov. (59) 



Clypeus, back of genae below eyes, scutellum, middle of pronotum 

 and all of abdomen brown, rest of body and legs yellow; tegmina 

 brown with white hyaline areas, costa and first branch of subcosta 

 red, other veins brown; the hyaline areas are a patch over basal 

 area, cut up by the brown veins, and nine or ten spots in the disk, 

 the spot in second radial cell continued as a fine hair-streak to near 

 apex; wings fuscous brown, veins dark with the darker color spread- 

 ing into the cells. 



Male pygophor slightly compressed laterally, medio-ventral edge 

 produced into an angular plate, the basal half narrowing slightly, the 

 apical half more acutely; lateral edges obtusely angularly produced; 



