88 
Eyes very prominent. 
Rostrum three-jointed, the two first joints short, the 
third very long. 
Tarsi three-jointed. 
Elytra and wings nervose, generally glassy, acutely de- 
flexed, the former longer than the abdomen. 
“© Head transverse, with the front elevated and striated 
transversely. Thorax with the first segment transversely li- 
near. Scutellum like the letter X, prominent. Abdomen tri- 
angular-conic. Feet short and approximate; anterior thighs 
thick, toothed.” —Latreille. 
The Tettigonie emit avery shrill sound, whence they are 
called by the French, chanteuses, or singers: they are sup- 
posed to be the cicadz of Virgil, which idea has caused 
some entomologists to retain that name to this genus; but 
this being a very doubtful point, the name given by Fa- 
bricius should not have been rejected. 
