Bruner: South Ami-khan Acridoidea. 55 



Habitat. — Rehn's type came from Chapada, near Cuyaba, Matto 

 Grosso, Brazil (H. II. Smith). 



80. Elaeochlora hymenaea (Gerstaecker). 



Xiphoccra hymenaa Gerst.ecker, Stettin. Ent. Zrit., XXIV, p. 186 (1873). 

 Elaochlora longispina Pictet et Saussi re, Mitth. Schweiz. Ent., V, pp. 344, 345 

 (1887). 



Habitat. — A male specimen from Riode Janeiro, taken in September, 

 is placed here (H. H. Smith). 



81. Elaeochlora brevipennis sp. now 



This species, like Rehn's E. arcuata, belongs to the section of the 

 genus which contains trilineata, viridicata, humilis, and pulchclla. It 

 is most closely related to arcuata in the form of its tectate pronotal 

 carina. But it differs from that species in the more rugose pronotum, 

 the more robust hind femora, and the smaller eyes, as well as in the 

 shorter and less acuminate tegmina. Its color is wood-brown, fuscous, 

 and testaceous, the only tinge of green about it being on the outer 

 face of the hind femora. 



General form robust, the size medium; head fairly large, nearly as 

 wide as the front edge of the pronotum, the occiput viewed in profile 

 gently rounded, a little lower than the anterior middle of the pronotum ; 

 \ ertex wide, its width equal to the longest diameter of one of the eyes, 

 the fastigium with its front slightly ascendant, very gently sulcate, 

 about as long as its basal width, the lateral margins very gently 

 rounded. Frontal costa prominent above, sulcate throughout, its 

 walls evenly divergent below and reaching the base of the clypeus. 

 Antennae rather slender, as long as the head and pronotum combined, 

 composed of twenty-two or twenty-three segments. Eyes not very 

 large, but fairly prominent, about one-fourth shorter than the anterior 

 edge of the cheeks below them, nearly elliptical. Lateral ocelli small, 

 situated just in advance of the lower portion of the upper fourth of 

 the eyes on a lateral continuation of the fastigium of the vertex and 

 just back of its anterior carina. Pronotum very strongly rugose and 

 studded both on the disk and lateral lobes with large rounded tubercles, 

 slightly recalling the genus Helionotus, the median carina heavy, 

 strongly arched, and thrice severed by the three transverse sulci, the 

 posterior one most profound and situated plainly back of the middle; 

 hind margin slightly obtuse-angled, the margin studded with several 

 rounded tubercles; lateral carinse also strongly and numerously 



