Bruner: South American Acridoidea. 85 



liki- the others. Tegmina of moderate width, a little surpassing the 

 tip of the abdomen, their apex rounded. Hind femora normal, their 

 external genicular lobes scarcely acuminate^ hind tibiae gently ex- 

 panded apically, the outer margin six-spined, inner margin nine-spined. 

 Mesosternal lobes separated by a quadrate space decidedly wider than 

 long, about equal to one and one-half times the width of one of the 

 Valves of the ovipositor strong and longer than usual, the 

 apical hook long and strong; the lateral edges of the basal portion 

 four- or five-toothed, the outer one much the largest. 



General color brunneous above, very pale flavous below the dusky 



lateral lines and on the legs, possibly greenish yellow in life. Genicular 



; of hind femora and apical portion of hind tibiae infuscated. 



The dusky bands are dark piceous, almost jet-black next to the pallid 



lower parts, and gradually fading into the brownish upper parts. 



length of body, 9 , 22 mm., of pronotum, 4 mm., of tegmina, 19.5 

 mm., of hind femora, 11.75 mm. 



Habitat. — The only specimen at hand, the type, was collected by 

 II. II. Smith during November. It comes from Chapada, near 

 Cuyaba, Matto' Grosso, Brazil, and is in the collection of the Carnegie 

 M useum. 



123. Paracornops aquaticum Bruner. 

 Paracornops aquaticum Bruner, Proc. IT. S. Nat. Mus., XXX, pp. 662, 663 (1906). 



Habitat. — Specimens of this insect are at hand which bear the labels, 

 "Corumba, Brazil, lowlands." They were taken during the months 

 of February and March by H. H. Smith. 



The type specimen was taken by the writer at San Bernardino, 

 Paraguay, during the month of September. 



Genus EUMASTUSIA gen. nov. 

 Related to Oxybleptclla GlGLlO-Tos, but differing from that genus 

 chiefly in the emarginate pronotum and the greatly abbreviated 

 i na and wings. 



124. Eumastusia koebelei (Rehn). 

 Ma tusia koebelei Rehn, Proc. U. S. Nat. Mus.. XXXVI, pp. 142-144, figs., 26, 27 



(1909). 



Habitat. — Chapada, near Cuyaba, Matto Grosso, Brazil, I cf and 

 1 9 , August and September respectively (H. H. Smith). 



