Bruner: South American Acrid< \. L33 



Habitat. Specimens arc before me from both Chapada and San 



tarem, Brazil. The) were taken in April and September l>y II. II. 



Smith. 



184. Dichroplus brasiliensis Bruner. 



>plus brasiliensis Bruner, Proc. U. S. Nat. Mus., XXX. p. 682 1 1906). 



Iltihitnt. —Rio de Janeiro, Brazil, during the months of June to 



November inclusive (H. II. Smith). 



[85. Dichroplus robustulus (Stal). 



Uix robustulus Si v . I »bs. I (rthopt., III. p. 7 (1878). 

 Dichroplus robustulus Bruner, Proc. U. S. Nat. Mus., XXX. pp. 679, 683 1 



Habitat. — Chapada, Brazil, where it was taken in March and 



November by H. II. Smith. 



[86. Dichroplus olivaceus sp. nov. 



A medium-sized, but rather slender insect, reminding at first glance 

 of Atrachelacris unicolor Giglio-Tos in color and general appearance, 

 hut possessing the characters in main of a Dichroplus. Head and 

 pronotal characters similar to those of D. gracilis described in the 

 present paper. Moderately hirsute- throughout. 



lli, ul about as wide as the anterior edge of the pronotum, rather 

 smooth, impunctate; the eyes of medium size, not prominent, no 

 longer than the anterior margin of the cheeks below them, separated 

 on the vertex by a space fully one-half wider than the greatest width 

 of the frontal costa between the base of the antenna'-, fastigium 

 roundly depressed, very broadly and shallowly sulcate, decidedly 

 wider than long, the antero-lateral carina? arcuate and almost reaching 

 the eyes; frontal costa prominent, almost twice as broad between the 

 antennae as the diameter of the basal joint of the latter, a little nar- 

 rower at and below the ocellus, broadly, but not deeply, sulcate 

 throughout, continued to the clypeus; facial carime parallel. An- 

 tennae filiform (incomplete). Pronotum impunctate, gentl} expanded 

 on the hind lobe, the median carina faint, present only on the hind 

 lobe, the two lobes nearly equal in length, the hind margin slightly 

 obtusangulate, the immediate apex rounded. Tegmina and wings 

 somewhat surpassing the tip of hind femora and apex of abdomen, 

 sparsely veined and membranous beyond the basal one-fourth, the 

 discal field provided with a well defined intercalary vein. Anterior 

 and middle femora only gently inflated, the hind femora about normal. 



