Bruner: South American Crickets. 387 



gg. Rostrum of the front variable, the anterior ocellus located 

 on its apex above. Tegmina of the males membra- 

 nous, provided with a tympanum. Legs greatly- 

 elongate. 

 h. Posterior tibia> with two internal spurs almost equal in 

 length. Lateral lobes of the pronotum broadly 

 rounded. Head rounded, the rostrum turned down 

 in front. Female apterous. . Dyscophogryllus Rehn. 

 hh. Posterior tibiae with the upper internal spur much 

 shorter than the median. Lateral lobes of the pro- 

 notum more angulate. Front narrowly rostrate. 

 Female apterous. Tegmina of male abbreviated, 

 discoidal. Pronotum arched, the lateral lobes an- 

 gulated. Posterior femora elongate. 



Amphiacusla Saussure, 

 ff. Anterior tibia? provided with a single auditory opening and this 

 on the inner side. 

 g. Upper inner spur of the hind tibiae shorter than the 



middle one Endacusta Brunner. 



gg. Upper inner spur of the hind tibiae longer than the middle 



one Endecous Saussure. 



dd. Anterior tibiae without auditory openings. Legs very long, spider- 

 like. Anterior femora not serrulate. 

 e. LTpper internal spur of the hind tibiae of equal length with, or 

 longer than, the median. Tegmina of the male minute, the 

 tympanum rudimentary. Female apterous. 



Phalangopsis Serville. 

 ee. Upper internal spur of the hind tibiae shorter than the middle one. 



Arachnomimiis Saussure. 



A. A. Pronotum somewhat elongate, its lateral lobes narrowing anteriorly, the 



lower margin ascending towards the front Cophus Saussure. 



Genus Laranda Walker. 

 Laranda Walker, Cat. Derm. Salt. B. M., I (1869), p. 88; Kirby, Syn. Cat. Orth. 



II (1906), p. 64. 

 Larandus Saussure, Mem. Soc. Geneve, XXV (1878), p. 409. 



The members of the present genus, so far as we know, are confined 

 to tropical American regions where they live on the ground among 

 fallen leaves and other dead and decaying vegetation. They are 

 moderately large insects, with characters such as are indicated in the 

 synopsis of genera given on a preceding page. Only a comparatively 

 few species are known. 



50. Laranda tibialis Walker. 



Laranda tibialis Walker, Cat. Derm. Salt. I (1869), p. 89; Kirby, /. c. (1906), p 67. 

 Gryllomor pha tibialis Saussure, Miss. Mex., Orth. (1874), p. 431. 



