426 



2. Last segment of rostrum fairly long 3. 



2a. Last segment of rostrum subannuliform, conspicuously 



short . 6. 



3. Head strongly carinate longitudinally in the middle 



I . Phacfliiciira, gen. nov. 



3a. Head not carinate medianly 4. 



4. Lateral carinate of the head narrow and acute, sensory 

 organs less conspicuous ; pronotum not extending lateral- 

 ly farther than the antennae, not so far as the tegulae 5. 



^a. Lateral carinae broader and flattened, sensory organs con- 

 -spicuous. pronotum extending laterally much farther than 



the antennae, farther than the tegulae 



' 4. Phacioccphaliis, gen. nov. 



5. Lateral carinae of irons (ventr'ally) parallel; vertex linear, 

 widening- out triangularly laterally 2. Nisia Melichar. 



5a. Lateral carinae narrowing basally (ventrally) ; vertex 

 linear entirely 3. Suva, gen. nov. 



6. Pronotum laterally foliaceous, sinuate, recurved, laterally 



almost enclosing antennae. Vertex triangular 



5. Basileoccphalns, gen. nov. 



fia. Pronotum more or less normal, vertex truncate apically. . 

 6. Thyroccphahis, gen. nov. 



7. Antennae more than three times as long as wide 8. 



7a. Antennae not twice as long as wide 10. 



8. Antennae more or less flattened, with very conspicuous 

 sensory organs 9. 



8a. Antennae subcylindric, sensory organs indistinct 



9. Hcronax, gen. nov. 



9. Head strongly elongate, curved and recurved, subascen- 

 dant, length greater than that of nota,7. Siveseyia, gen. nov. 



9a. Head foliaceous but not longer than nota, not recurved. . . 

 8. PJiaiifastnafoccra, gen. nov. 



10. Head wider than pronotum. . . . 10. Fliiladclphcia, gen. nov. 



loa. Head narrower than pronotum t r. 



T I . Tegmina elongate, narrow, nearly three times as long as 



wide II. Sardis, gen. nov. 



1 la. Tegmina not more than twice as long as wide 12. 



12. Lateral margins of irons practicallv contiguous between 

 the eyes 13. 



T2a. Lateral margins of frons not nearly contiguous between 

 the eves 14. 



13. ^^ertex extending far l>eyond the eves. . t2. KaJia. gen. nov. 



