Pomona College Journal of Entomology 483 



B. Excision of vertex very deep. Tliird antiniial segment slender, or at 



least distinctly less slender than seeond. 



Rhinopsylla Riley. 



BI5. Exeision of vertex not so deep. Tliird antennal segment very long and 

 almost as thick .at center .as jireceding segment. 



Bactericera Puton. 



AA. Cubital petiole distinctly present, variable in length. 



B. Fourth f ureal terminating above apex of wing; apex within second mar- 

 ginal cell. 

 C. Antenna' siiort; flagellum broadly compressed and densely pubescent. 

 Fourth furcal terminating far above apex of wing. 



Homotoma Guer. 



CC. Antenna' very long; fl.igellum very slender; third segment quite 



thick and densely pubescent. Fourth furcal not far above ape.x 



of wing. Posterior tibiae not spurred at base. Anterior ocellus 



in front. 



Freysuila Aleman. 

 BB. Fourth furcal terminating below apex of wing; apex between fourth furcal 

 and radius. 

 C. Wing broadly rounded at apex ; antennae short, very stout, glabrous ; ros- 

 trum ratiier short; radius sharply angulated midway. Anterior ocellus 

 in front. 



Epicarsa Crawf. 

 CC. Wing acutely angulated at apex ; rostrum long. 

 D. First marginal cell as large as second. 

 E. Pterostigma large, broad, short; radius short. Antenna? short. 



Macrohomotoma Kuway. 

 EE. Pterostigma long, narrow ; radius long. 



Tyora Walker. 

 DD. First marginal cell much smaller than second. Pterostigma long, or 

 wanting. Anterior ocellus usually above. Antennae usually long, 

 slender. 

 E. Dorsal plate of female genital segment with a prominent convexity near 

 apex and a tuft of long slender hairs thereon. Wings not more 

 than three times as long as broad ; fourth furcal strongly curved 

 downward. 

 F. Pterostigmal space wanting; radius very short; cubital petiole less 

 than one-third the length of discoidal subcosta. 



Mesohomotoma Kuway. 

 FF. Pterostigmal space present, open or closed; radius not very short; 

 cubital petiole at least half as long as discoidal subcosta. 



Carsidara Walker. 



EE. Dorsal plate of female genital segment without densely pubescent 



convexity caudad. Wings very slender, more than tlirec times as 



long as broad ; fourth furcal almost straight. Pterostigmal space 



quite large, open; cubital petiole longer than discoidal subcosta. 



Tenaphalara Kuway. 



