114 Annals of the Carnegie Museum. 



.4.1. General form rather slender. The antenna; slender, .long, and without 

 annulations of flavous. 

 b. Hind femora with a large testaceous patch externally near the base; antennae 

 much longer than head and pronotum combined, filiform. [Chapada, 



Brazil.] gracilicornis sp. nov. 



bb. Hind femora clouded externally with blackish; antennas but little longer 

 than head and pronotum combined, subensiform. [Para, Brazil.] 



aqualis Rehn. 



158. Leptomerinthoprora gracilicornis sp. nov. 



Below the medium in size, slender, and with filiform antennae, 

 which equal the hind femora in length. The latter with a conspicuous 

 large pale testaceous patch on upper half of outer face near base; 

 lower sulcus and inner face near base carmine. 



Head small, scarcely as wide as the anterior edge of the pronotum; 

 front gently retreating; eyes prominent, oval, the vertex narrow-, 

 less than the diameter of the comparatively slender antennae; fas- 

 tigium of medium size, about as broad as long, the antero-lateral 

 margins rounded, the disk rather widely and fairly deeply sulcate. 

 Frontal costa quite prominent between the antennas, where it is plane, 

 with a few coarse punctures, suddenly lowered before the ocellus, 

 where it is sulcate and narrowed to middle of front, when it again 

 widens and continues to the clypeus; lateral or facial carinas slender 

 and continuous, but little divergent below, spaces between costa and 

 lateral carinas occupied by an interrupted supplemental carina. 

 Pronotum without lateral carinas, rather evenly divergent posteriorly, 

 hind lobe closely and deeply punctulate, anterior lobe and face faintly 

 so; median carina moderately well developed throughout, interrupted 

 by all three of the transverse sulci; anterior margin roundly advanced 

 at middle upon the occiput, hind margin widely angulate. Tegmina 

 and wings abbreviated, about one-half the length of the abdomen, 

 the former a little overlapping above, the costal margin gently arcuate, 

 the veins moderately profuse, but not prominent, their apices rounded. 

 Abdomen slender, tapering; valves of the ovipositor short, slender, 

 of normal form. Anterior and middle femora slender, hind femora 

 robust at base, slender apically, the upper carina minutely serrate 

 basally, and terminating in a small triangular tooth on the apex; 

 hind tibias slender, somewhat sinuose, lengthily hirsute, seven-spined 

 externally, nine-spined internally. Interspace between the meso- 

 sternal lobes plainly wider than long, fully equalling in width the 



