260 OETHOPTEEA. 



l. Inusia nana, sp. n. 



This is the smallest species of the genus so far as known, and may be recognized from its allies by its shorter 



and blunter tegmina. 

 Length of body, <3 18, $ 24 ; of pronotum, 6 3-25, $ 4-9; of tegmina, J 18, $ 21 ; of hind femora, 



6 11-5, $ 13-25 millim. 



Eab. Costa Rica, Limon [1 tf ] (M. A. Carriker), Pozo Azul [1 $ ] (L. M. Underwood). 

 [2. Inusia chipmani, Bruner. 



Inusia chipmani, Bruner, Journ. N. York Ent. Soc. xiv. p. 154 (1906). 



Eab. South America, British Guiana (coll. L. Bruner), Trinidad.] 



3. Inusia bicolor, sp. n. 



As indicated in the synoptic table of the species, the tegmina of this form are provided with three inter- 

 calaries, and the internal face of the apical portion of the hind femora is strongly marked with black or 

 dark brown. In general colour it is very similar to /. chipmani, which was quite fully described in the 

 paper on the " Orthoptera of the Island of Trinidad." 



Length of body, S 22, $ 27 ; of pronotum, S 4-35, $ 5-4 ; of tegmina, S 23, $ 26 ; of hind femora, 

 S 13, $ 15; of antennae, <? $, 10 millim. 



Eab. Mexico, Tampico in Tamaulipas (coll. III. St. Lab. Nat. Eist.), Venta de 

 Peregrino in Guerrero, Teapa in Tabasco (E. E. Smith), Valladolid in Yucatan 

 (Gaumer); Guatemala, Chacoj in Vera Paz (Champion), Los Amates (J. S. Eine); 

 Costa Eica, San Mateo (P. Biolley) ; Central America (Rev. Eeyde). 



The Costa Eican specimens are not quite typical, but are not sufficiently distinct to 

 be described as a separate species. The example from Vera Paz is very pale above, 

 with a narrow dark line on the sides of the pronotum, but is otherwise practically the 

 same as the type-form, which comes from Los Amates, Guatemala. 



4. Inusia inornatipes, sp. n. 



The present species, or form, is very similar to the preceding in size and general shape, but differs from it in 

 lacking the dusky markings on the inner face of the knees of the hind femora. 



Eab. Mexico, San Eafael in Vera Cruz (C. E. T. Townsend). 

 Several specimens. 



STENOPOLA, St&l. 



Stenopola, St&l, Eecens. Orthopt. i. p. 83 (1873) ; Syst. Acrid, i. p. 39 (1878); Giglio-Tos, Boll. 

 Mus. Zool. Anat. Comp. Torino, xiii. no. 311, p. 46 (1898). 



This is another of the South-American genera of locusts of the group that extends 

 northward to Central America and the West Indies. At least two species are probably 

 represented in " Biologia " territory, and they may be separated as follows : — 



