xni LOCUSTIDAE 329 



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 1 1 . CALLIMENIDES. 



4'. Third joint of posterior tarsi longer than the second joint. 

 Anterior tibiae with no apical spine on the inner side, and 

 posterior tibiae with no apical spine on the outer side. 

 5. Antennae inserted at the edge of the eyes. Pronotum 

 unarmed. Tegmina present in each sex. Anterior tibiae 

 furnished on the outer side with an apical spine. Posterior 

 tibiae furnished beneath with four apical spines. Tribe 

 12. EPHIPPIGERIDES. 



5'. Antennae inserted distinctly below the eyes. Pronotum 

 spinous. Elytra in the females wanting. Anterior tibiae 

 without apical spine on either side. Posterior tibiae 

 beneath with two apical spines or with none. Tribe 13. 

 HETRODIDES. 



2'. Anterior tibiae without auditory cavities. Tegmina with no tym- 

 panum. Tribe 14. GRYLLACRIDES. (Fig. 201, Schizodactylus 

 monstrosus.) 



1'. Tarsi distinctly compressed (most of the species apterous.) Tribe 15. 

 STENOPELMATIDES. (Fig. 202, Anostostoma australasiae ; Fig. 197, 

 Dolichopoda palpata.) 



