Tctriginae in the Oxford University Museum. 351 



simile, Bol. 



lobato-dentate ; wings covered 

 by the sides of pronotum ; length 

 of pronotum, ^ 12 mm. . . . 

 3. Pronotum behind at the apex 

 incised, crest highly arched- 

 cycloidal ; inferior margin of pos- 

 terior femora strongly denticulate, 

 inferior external carina bearing 

 denticles : length of pronotum, 



12 mm platycorys, Westw 



3.3. Pronotal apex obtuse-rounded, 

 margin barely undate or sub- 

 sinuate ; crest subreniform ; 

 frontal scutellum cristate pro- 

 duced, entire or very slightly 

 serrulate : vertex carina bearing 

 a median projecting denticle ; 

 posterior femoral carinae ven- 

 trally strongly quinquelobate, 

 inferior external carina trilobate ; 

 length of pronotum, <$ 10.5 mm.; 



9 11.5 mm 



4. Dorsal crest very highly compresso- 

 elevated, semicircular, margin 

 behind near the apex crenulate ; 

 length of pronotum, £ 13 mm. . 

 4.4. Dorsal crest very highly coni- 

 presso-elevated, semicircular, 

 but very little subangulate- 

 rounded above the middle ; 

 lateral carinae of frontal scu- 

 tellum minutely spinulose ; 

 length of pronotum, £ 11.5 

 mm. ; § 11.8 mm neavei, sp. nov. 



cristifrons, sp. nov. 



galeatwn, Karsch, 

 fuscnm, Bol. (larva) 1 



X. externum, sp. nov. (Plate XLIX. fig. 1.) 



(See preceding synoptical table.) Lateral carinae of frontal 

 scutellum minutely spinulose or denticulate. Pronotum highly 

 elevated and strongly compresso-foliaceous, crest very thinly trans- 

 lucent bearing radiating veins; superior margin forward of the 

 middle of dorsum regularly smoothly curvate, highly and roundly 

 elevated subangulate behind the middle and extended deflexed back- 

 ward substraight to the acute apex ; behind more than a third of 



