HANCOCK 55 



5. Median carina of pronotum strongly compressed, in 



profile strongly arcuate, translucent, punctulate; 

 posterior femora scarcely at all ampliate. 



compressus, Morse. 



6. Body larger; median carina of pronotum lower; pos- 



terior femora distinctly ampliate. cristatus, Morse. 



7. Pronotal process posteriorly extended beyond the 



knee of hind femora. carinatus, Brun. 



8. Body smaller; median carina of vertex in profile 



scarcely elevated above the eyes ; elytra not 

 strongly elongate. 



9. Pronotum between the shoulders strongly tectiform, 



between the carinas transversely subconcave; body 

 rugose, scabrous. f/oridaniis, sp. n. 



10. Median carina of pronotum longitudinally arcuate, 



between the shoulders transversely compresso- 

 cristate, between the carinae strongly concave; 

 body granulate, rugose. arcnatiis, sp. n. 



NOMOTETTIX PARVUS, MORSE. 



Plate II., Figs. 4-4a. 



Small, vertex projecting in advance of eyes about two- 

 thirds the length of an eye, the anterior margin obtuse angu- 

 late, its sides nearly straight, rounding shortly into sides of 

 crown, the mid-carina showing from above as a very small, 

 slightly projecting tooth; mid-carina low on the crown, dis- 

 appearing opposite the middle of the posterior half of the 

 eyes; profile rounded or round-angulate at top, deeply exca- 

 vate opposite eyes, subprotuberant o[)posite lower border of 

 eyes, the face more retreating than in cristatus; sides of crown 

 subparallel, slightly excavate opposite anterior portion of 

 eyes; mammillse of occiput scarcely distinct. Pronotum 

 sharply tectiform, the mid-carina lower and less arched longi- 

 tudinally than in cristatus ; anterior margin of dorsum project- 

 ing but little over the head, obtuse-angled, the sides straight 

 or very slightly excavate; surface scabrous. 



Length of body, /, 6.5-6.8 mm.; pronot., 5.5-6 mm.; 



