8. Dysonia (?) lamellipes sp. nov.
There is also an additional species of katydid at hand, which appears to belong to the genus Dysonia. It is represented by a single female nymph also taken by J. Steinbach during November in the "Province del Sara, Bolivia," at an elevation of 350 meters above sea-level. It differs from the images of the various described forms to such an extent that it very likely represents a new form. In color this nymph is largely brunneo-ferruginous somewhat varied with grayish testaceous. It has the disc of the pronotum smooth and flat, save that the surface is very finely transversely aciculated, with the hind lobe much ampliated, while the lateral lobes are nearly perpendicular and joined to the disc by sharp carinae which are sinuose. The hind femora are provided internally on their apical third with a single large, flattened, horizontally directed, lobe-like plate the hind margin of which is bidentate; externally there is a similar, but smaller, lobe and two or three spines. The anterior and middle femora are each armed below on the front margin with three or four spines, the apical one of which is larger and tooth-like. Hind tibiae simply spined. Antennae distantly and narrowly fusco-annulate. Intermediate abdominal segments above and at the sides each provided near their hind margin with five prominent denticles.
Judging from the small size of this nymph the insect when grown must be smaller than is usually the case for the genus. Length of body 9.5 mm., of hind femora, which are slender, 11.5 mm.
I would suggest the name Dysonia lamellipes as a suitable name for this insect. It is in the Carnegie Museum.
