382 'I'he Philippine Journal of Science xsa 



ing the curve made by the internal margin of the tegmina, 

 sharply carinate above, two short lateral carinse at base; dorsal 

 carina percurrent from anterior base of pronotal horns to tip 

 of posterior process. Tegmina long, somewhat narrow; black, 

 opaque, deeply and regularly punctate, and sparingly pubescent 

 at base ; hyaline in middle ; costal area for two thirds the length 

 of the tegmen black and punctate ; apical fourth red with smoky 

 brown border; veins distinct, assuming the color of the part 

 of the tegmen traversed. Undersurf ace of body black ; abdomen 

 black with segments bordered with yellow. Legs fuscous- 

 ferruginous ; femora somewhat swollen ; tibiae slightly f oliaceous 

 and covered with fine spines; tarsi flavous and spined; claws 

 brown. Type, female. 



Length, 10.5 mm.; width between extremities of pronotal 

 horns, 8.6 mm. 



Mindanao, Iligan {Baker). 



The type specimen bears Baker's duplicate No. 3115. 



The male is smaller and darker and lacks much of the snowy 

 white pubescence on the front and sides of the pronotum. The 

 brown border on the tips of the tegmina is not so prominent. 



Length, 8 mm. ; width between tips of horns, 7 mm. 



I take pleasure in dedicating this very interesting species to 

 Professor C. F. Baker, through whose kindness I have been per- 

 mitted to examine most of the species recorded in this study. 



Genus SERTORIUS Stal 



Centrotus Fabr. (in part) . 



The standing of the genus Sertorius may be seriously ques- 

 tioned, but it is here included, pending further knowledge of the 

 group. As diagnosed by Stal, the characters may be stated as 

 follows: Posterior process present; tibise simple; underwings 

 with four apical areas; exterior discoidal cell of tegmina never 

 petiolate; posterior process touching scutellum; thorax strongly 

 elevated; horns present above lateral angles; longitudinal ridge 

 of thorax not elevated between lateral horns ; lateral horns never 

 compressed anteriorly and posteriorly; tegmina with five com- 

 plete apical areas; sides of scutellum distinctly prominent; eyes 

 slightly prominent; two interior longitudinal veins of corium 

 joining transverse veins before the middle." 



According to this description the genus differs from CenfrO' 

 typus Stal only by the presence of a cross vein at the base of the 

 tegmen, a structure which both Coding ^^ and Kirkaldy ^^ have 

 remarked as being of very doubtful value as a generic character. 



"Vide St&l, Hem. Afr. (1866), 4, 87. 



