4. Oxyprorella zebrata sp. nov.
Ferrugineo-testaceous, more or less mottled and streaked with fuscous and black. Body hirsute. Head a little wider than the anterior margin of the pronotum; eyes large, prominent, a little longer than wide, alternately streaked lengthwise with fuscous and testaceous; fastigium of the vertex depressed, sulcate, decidedly narrower than the first antennal joints; fastigium of the front prominent, white, almost reaching the upper end of the antennal scrobes. Antennae annulated with fuscous. Pronotum short, the disc flat above with prominent lateral carinae. Tegmina somewhat coriaceous, of moderate width, the apex obliquely truncate; anterior and posterior radials separated both near the base and apex, attingent between, the branch of the posterior one given off in advance of the middle, both of the forks running out at the apex. Anterior femora in front provided with a single large tooth-like spine near the apex; intermediate pair with two smaller spines; hind femora with several rather prominent spines; anterior and intermediate tibiae dilated near their base, the auditory apparatus wide open. Cerci heavy at base, rather long, arcuate, the apical half slender. Sub-genital plate rounded, sub-truncate at apex.
Front infuscated and marmorate with flavous or testaceous and rather closely punctate with fuscous dots from which eminate short pale hairs. Pronotum with the lateral carinae and hind border black. Tegmina with a few irregular scattered and five regular oblique fuscous blotches,—the latter on the apical half of the costal field. Exposed portion of wings also so marked. Anterior femora and tibiae basally striped in zebra fashion with black. Hind femora also showing dim bands of fuscous. Cerci for the most part black, the center ferruginous.
Length of body, male, 13 mm., of pronotum, 2.85 mm., of tegmina, 21.5 mm., width of same, 5 mm., length of wings, 26.5 mm., of hind femora 15 mm.
Habitat.—The type, a male, and only specimen at hand, bears the label "Province del Sara, Bolivia, 350 meters, J. Steinbach, November, 19I3."
The type is in the Carnegie Museum.
