4′. Foveoles of the vertex, either superior (but not forming the apex of the vertex), or lateral, or inferior, or quite obsolete.
5. Foveoles superior, open behind. Prosternum irregularly swollen, rarely mucronate. Tribe 8. Pamphagides. (Fig. 184, Xiphocera asina.)
5′. Foveoles lateral or inferior, closed behind or (usually) entirely obsolete. Prosternum distinctly mucronate or tuberculate. Tribe 9. Acridiides. (Fig. 84, Acridium peregrinum; Fig. 176, Caloptenus spretus.)
CHAPTER XIII
ORTHOPTERA CONTINUED—LOCUSTIDAE, GREEN GRASSHOPPERS, KATYDIDS
Fam. VII. Locustidae—Green Grasshoppers.
Orthoptera, with very long delicate antennae composed of many more than thirty joints; hind legs longer than the others, thicker at the base. Tarsi with four joints. Front tibiae usually provided with tympanal organs placed below the knee; stridulating apparatus of males, when present, situate on the basal part of the tegmina. Females usually with an elongate exserted ovipositor, formed by the apposition of six pieces. Wingless forms numerous.
Fig. 187.—Cyrtophyllus crepitans, male. West Indies.
An unfortunate confusion has long existed as to the term Locustidae, and has resulted in the application of the name to a group of Insects that contains none of the locusts of ordinary language. Some entomologists therefore use the term Phasgonuridea for this family, but the great majority prefer the term Locustidae.