614 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



Subfamily TETTIG-IIST^:. 



The grouse locusts are especially numerous in the Tropics, but on 

 account of their small size and inconspicuous colors are rarel}^ collected 

 except by specialists. A few are at hand and others have been reported 

 upon as coming- from Paraguaj'. The two forms herewith described 

 as new are characterized by Dr. J. L. Hancock, to whom they were 

 submitted for study. 



TABLE FOR DETERMINATION OF GENERA. 



a. Front thighs more or less carinated above; front margin of pronotum in middle 

 not advanced upon the back of head. 

 h. Body, even of the female, quite slender, the apex of pronotum greatly extended 



beyond the tip of hind femora Nephele Bolivar 



bh. Body in both sexes obese, the apex of pronotum not at all or but little extended 



beyond the tip of hind fenior Apotettix Hancock, Paratettix Bolivar 



aa. Front thighs not compressed , rather broadly and distinctly grooved; front margin 

 of pronotum in middle angulate or more or less advanced upon the occiput. 

 h. Vertex in front terminating in oblique carinee; frontal costa rather broadly 



sulcate Tettigidea Scudder 



bb. Vertex in front not carinate; frontal costa very narrowly sulcate. 



Batrachidea Serville 

 NEPHELE Bolivar. 



NEPHELE ASMODiEUS (Serville). 



Tetrix asmodxus Serville, Hist. Nat. Orthopt., 1839, p. 760. 

 Nephele asmodseus Bolivar, Essai Tettigidse, 1887, p. 79. 



Habitat. — This insect is credited to Asuncion, Paraguay, by Bolivar." 



NEPHELE GRACILIS Bruner. 



This insect, according to Doctor Hancock, belongs to the genus Para- 

 tettix and comes near to P. cauiJata,s (Saussure). It occurs at Asuncion. 



APOTETTIX Hancock. 



The representatives of this genus fall between Tettix and Paratettix. 

 They diflfer chiefly in the structure of the vertex and in having the first 

 joint of the hind tarsi decidedly longer than the third. The following 

 description was drawn up by Dr. J. L. Hancock, to whom the species 

 is to be credited: 



APOTETTIX BRUNERI, new species (Hancock). 



Characters. — Male, bod}^ scabrus subtuberculate; .loderately robust; 

 ferrugineous, with the tibijc more or less lighth' bianulate with fus- 

 cous, tjirsal apices of the same color. Head well crowded under the 

 pronotum to the eyes, not at all elevated or exserted. Vertex short, 

 nearly twice the breadth of one of the eyes; median carina distinct, little 



"Boll. Mus. Zool. A nat. Torino, XV, 1900, No. 377, p. 3. 



