7′. Margins of the scrobes of the antennae not prominent.
8. Posterior tibiae furnished above on each side with apical spines, or with a single spine on the side.
9. Posterior tibiae either furnished with apical spines on each side, or only on the inner side. Tribe 6. Conocephalides. (Fig. 189, Copiophora cornuta.)
9′. Posterior tibiae furnished above with an apical spine placed only on the outer side. Tribe 7. Tympanophorides.
8′. Posterior tibiae without apical spines. Tribe 8. Sagides.
6′. Anterior tibiae furnished with an apical spine on the inner side.[[258]]
7. The first joint of the posterior tarsi destitute of a free sole-lobe. Tribe 9. Locustides.
7′. The first joint of the posterior tarsi furnished with a free sole-lobe. Tribe 10. Decticides.
3′. Antennae more distant from the summit of the occiput than from the labrum, inserted either beneath the eyes or on their inferior border. Tegmina and wings greatly abbreviate, scale-like; when tegmina are present they are furnished in each sex with a tympanum.
4. Third joint of the posterior tarsi shorter than the second. Both anterior and posterior tibiae furnished on each side with a spine. Tribe 11. Callimenides.