Bruner : South American Acridotdea. '_'."> 



</. General color brunneo-testaceous, immaculate, or with fainl 

 dots on tegmina. 



<-. Larger (d". 20-23 mm.). 



f. Tegmina pale testaceous, unspotted. [Paraguay and Ar- 

 gentina.] australis Brunei . 



ff. Tegmina with faint Fuscous dots along dorsal edge. [Conm 



Brazil.] genu ulata sp. nov. 



ee. Smaller (15.5-16 mm.). Tegmina faintly maculate with fuscous. 



[Chapada, Brazil.] minor sp. nov. 



dil. Color variable, frequently both vittate and maculate. 



c. Insect often more or less markedly longitudinally striped with 

 green. 

 /. Smaller. General color pallid testaceous or greenish. Teg- 

 mina often provided with a subcostal pale line, or the 

 dorsum with lateral green stripes reaching from the eyes 

 to the middle of the tegmina. The latter as long as the 

 abdomen. [Paraguay and Southern Brazil.] 



viltala Giglio-Tos. 

 ff. Larger. General color dark wood-brown or fuscous. 



g. Tegmina provided (9) with a dirty white subcostal line. 

 Dorsum concolorous. [Corumba, Brazil.] 



corumbcB Bruner. 

 gg. Tegmina without the subcostal line. Dorsum often 

 entirely green. [Paraguay and Southern Brazil.] 



robusta Bruner. 

 Iih. General structure moderately graceful, even in the females. Chief color 

 usually more obscure, being brown or even fuscous. Tegmina of 

 females always extending beyond the tip of the abdomen. Abdomen 

 of male usually tinged above with orange or ferruginous. 

 c. Hind tibia 1 eleven- to thirteen-spined externally. 

 d. Prevailing colors brown. 



c. Hind tibiae twelve- to thirteen-spined externally. [British Guiana 



and Trinidad.] trinilalis Bruner. 



ee. Hind tibiae eleven- to twelve-spined externally. [Chapada. Brazil. 



chapadensis Rehn. 

 dd. Prevailing color olive-brown in male. Female not known. [Mexico, 



eastward.] auriventris Bruner. 



CC. Hind tibiae fifteen- to sixteen-spined in outer row. [West coast of Central 



Mexico.] elongata Bruner. 



A A. Median carina of the vertex less prominent. Last transverse sulcus of the 

 pronotum situated about the middle. 

 b. Hind tibiae provided with fifteen to nineteen spines in the outer row. 



C. Form of insect rather robust. Color variable. [Costa Rica, Central 



America.] costaricensis Bruner. 



cc. Form of insect slenderer. Color rather uniform. [Mexico, southward 

 into South America.] 



