BY REV. T. BLACKBURN. 491 



CC. Transverse carina of pronotum not having 



a median tooth tensix, Blackb. 



BB. Clypeal elevation furnished with a median 



angular projection taurus, Westw. 



Group 



11. 



Second Subgroup (species having, in both sexes so far as known, an elongate 

 transverse carina on the pronotum behind the middle). 



Males. 

 A. Middle of transverse carina of pronotum projects 



as an angular process Kiehardsae, Blackb. 



AA. Transverse carina of pronotum not, or scarcely, 

 angular in middle. 

 B. One horn on each side of the retuse front of 

 pronotum, 



C. Two horns on front of clypeus. laticorne, xl/acZ. 



CC. A single horn on front of clypeus chelyum, Blackb. 



BB. Pronotum not having two horns. 

 C. An erect projection on front margin of pro- 

 notum Bainbridgei, Westw. 



CC. The projection on pronotum is erect and 



rises from centre of retuse area recticorne, Guer. 



ceo. The projection on pronotum is hori- 

 zontal and springs from middle of 

 front margin fissicorne, Bainb. 



Females. 



A. A single tubercle on front margin of pronotum... laticorne, Mad. 



AA. No tubercle on front margin of pronotum chelyum, Blackb. 



AAA. Two tubercles on (or close behind) front 

 margin of pronotum. 

 B. Frontal elevation with two approximate strong 

 tubercles placed one on each side of the 



middle line recticorne, Guer. 



BB. Frontal elevation scarcely indicated &ssicoxne, Bai7ib. 



Group iii. 

 A. Elytra normally striate. 



B. 9th elytral stria not materially different from 



10th gayndahensis. Mad. 



BB. 9th elytral stria very much abbreviated in 

 front. 



