Bruner: South American Acridoidea. 19 



Habitat. The single female at hand, the type, comes from Para, 

 Brazil, where it was collected during the month of April. 



In general the color of this insect is dirty testaceous varied with 

 brown, very similar in pattern to dark-colored specimens of 0. 

 punctata De Geer, recalling that insect, save in the more robust and 



deeper body. 



22. Orphulella compacta sp. nov. 



Most marly related to the 0. grossa described above, but differing 

 from that insect in the shorter tegmina and wings, the somewhat 

 Battened antenna! joints, the remarkably slender apical third of the 

 hind femora, and the very strongly impressed triangular lateral /oveolae 

 of the vertex, which are a little longer than the basal width. Size of 

 insect medium. General color dull wood-brown varied with testaceous 

 bands and Hecks. Head not especially large, equal in width to the 

 anterior edge of the pronotum and a little higher than it. The vertex 

 gently depressed, not quite as long as the distance between the eyes, 

 its antero-lateral walls moderately heavy, and meeting at the fastigium 

 in a right angle, the disk quite deeply sulcate in advance of the upper 

 extremity of the eyes; the latter fairly prominent, a little longer than 

 the anterior edge of the cheeks below them. Frontal costa with the 

 lateral margins evenly divergent below, sulcate, and sparsely punctulate 

 throughout. Antennae slender, the basal joints somewhat flattened, 

 but not transversely enlarged, about as long as the combined length 

 of head and pronotum. Latter with the two sections about equal 

 in length, gently constricted on the sides at middle; lateral carina- 

 evenly arcuate in advance of the principal transverse sulcus and also 

 severed by the middle sulcus about equally distant at the hind and 

 front margins of this lobe; lateral lobes a little higher than long; hind 

 margin of disk obtusangulate. Tegmina of moderate width, their 

 apex rounded and only reaching the tip of the abdomen; hind femora 

 robust at base, but very slender on apical third, reaching tip of wings 

 and abdomen. Hind tibiae nine-spined externally. Meso- and meta- 

 sternal lobes and interspace as described for 0. crassa. 



Length of body, 9 , 19 mm., of pronotum, 3.6 mm., of tegmina, 14 

 mm., of hind femora, 11 mm. 



Habitat. — The type, and only specimen at hand, bears the labels 

 " Rio de Janeiro " and " Oct." ; it was collected by H. H. Smith, and is 

 contained in the Carnegie Museum. 



The color of this insect as mentioned above is dull wood-brown 



