the Tttriginx in the Oxford Universitij Museum. 895 



3. Pronotum elevated between the 

 shoulders, glbbose on each side 

 of summit, flattened, declivous 

 backwards ; body asperous, 

 viewed in front subquadrate ; 

 front margin truncate, tricarin- 

 ate, not or very little produced 



at the middle 



A. Posterior femora having the 

 sui)erior margin armed with 

 three acute trigonal sjjines . 

 A. A. Posterior femora having 

 the superior margin un- 

 dulate, the femoral and 

 genicular spines large, 



triangular 



2.2. Lateral lobes having the posterior 

 angles strongly laminate - ex- 

 panded, obliquely truncate, or 



erose-spiniform 



3.3. Pronotum depressed, median 

 carina cristulate-sinuate, dor- 

 sum posteriorly strongly fos- 

 sulate reticulate, between the 

 shoulders profoundly im- 

 pressed, apex of process often 

 angulate excised or abruptly 

 acute ; rami of frontal facial 

 scutellum only slightly separa- 

 ted, often angulate, protuberant 

 above antennal insertion . . 

 A. Lateral lobes of jironotuni 

 having the posterior angles 

 strongly laminate expanded, 

 erose - spiniform ; spines of 

 vertex elevated much above 



the eyes 



A.A. Lateral lobes having 

 the posterior angles 

 obliquely truncate, min- 

 utely serrulate . . . 



[tell A, nov. 

 II, genus Cladono- 



G. (jibbusa, Haan. 



C. beccarii, Bolivar. 



[nov. 

 Ill, genus Tettilobus, 



T. spinifrons, sp. nov. 



T. internqjtns, Bolivar 



