1874.] '259 [Scudder. 



uniformly covered above with dusky blotches, the femora with three 

 equally distinct and equally distant dark blotches on the upper half of 

 the outer surface, and in having six preapical spines on the inner 

 hinder edge of the hind tibise; but I have in my collection specimens 

 from the upper Amazons, departing quite as widely from my previous 

 description in the marking, and which have but four preapical spines 

 on the edge of the hind femora. 1 ?, Peruvian Maranon. 



3. Platydactylus bicolor Scudd. 2 tf, Eastern slope of the 

 Peruvian Andes. 



4. Eneoptera sp. 



A single male from the eastern slope of the Peruvian Andes, ap- 

 pears to be an undescribed species, but is too imperfect for de- 

 scription. 



LOCUSTARI.E. 



5. The pupa of an unknown insect belonging to a new genus of 

 Locustarians, allied to Steirodon, with a flat hexagonal pronotal disc, 

 its side lobate with crenulated edges, and deeply notched behind the 

 middle third, was obtained on the eastern slope of the Peruvian 

 Andes. 



Steirodonopis nov. gen. 



Head large, as broad as the prothorax; the eyes prominent and 

 widely separated; front and vertex separated by a prominent broken 

 ridge between the eyes, of which the antennal sockets form a part; 

 vertex a little convex, the fastigium reaching just as far forward as 

 the antennal sockets, with a slightly impressed longitudinal sulcation; 

 it is scarcely longer than broad, tapers a little and meets at tip an 

 upturned projection of the front, consisting of a pair of lenticular 

 lobes, at the base of and between which is an ocellus, the others 

 occupying the sides of the fastigium of the vertex. Antennas very 

 slender. Prothorax slightly concave, longer than broad, the lateral 

 carinas very prominent, parallel, the front margin a little concave, 

 the hind margin convex to a greater degree. Elytra nearly four 

 times as long as broad, subfusiforin, tapering from the middle of the 

 basal third, the point rounded off, the principal veins running sub- 

 parallel to the hind border, with the neuration generally resembling 

 that of Phylloptera. Wings long and comparatively slender, pointed, 

 surpassing the elytra, and therefore furnished with a coriaceous tip. 

 Legs rather short and strongly compressed, notably the tibiae, which 



