— 471 — 



tum; tlie Vertex about as wide as the diameter of the first anten- 

 nal joint, smnoth, the fastigium gently depressed, a little longer 

 tliaii Wide, aeuminate and provided with a sliallow round pit in 

 front; the frontal costa prominent and roundly advanced between the 

 antennae, plane, about three-fifths as broad as the vertex, obliterated 

 from a point a trifle below the oeellus: the front strongly punctate, 

 viewed laterally somewhat oblique, the facial carinae présent but 

 inconsi)icuous, somewhat divergent below; palpi with the terminal 

 joint greatly flattened, elliptical, sulcate externally, pale bordered. 

 Antennae heavy, the joints for the most part somewhat flattened, 

 but not to such an extent as to give to these members an ensiform 

 appearance, about as long as the tegmina. Pronotum strongly and 

 closely punctured except on the disk of the anterior lobe and that 

 portion of the sides which is occupied by the yellow longitudmal 

 stripes where it is smooth, evenly divergent posteriorly; the disk of 

 the bind lobe greatly produced into a triangulär projection that rea- 

 ches the base of the first abdominal segment, its apex rather bro- 

 adly i'ounded; transverse sulci continuons, of raoderate depth; the 

 anterior edge margined, a little advanced and shallowly emarginate 

 at middle, the disk provided near the front edge with two small ob- 

 long nearly approximate sunken dusky maculations and just in ad- 

 vance of the last transverse sulcus by two similar but smaller widely 

 separated round spots. Tegmina about as long as the abdomen, cori- 

 aceous, closely veined, the anterior and posterior margins arcuate, 

 the apex roundly aeuminate. Wings shorter than the elytra, rather 

 broad and with the apex more or less truncate, the veinlets few 

 and irregulär. Hind femora shorter than the abdomen, rather robust, 

 the carinae serrate, the pinnae irregulär — in fact the entü-e upper, 

 lower and external surface is deeply and coarsely pitted and ridged, 

 ginng to the leg a very rugose appearance. Hind tibiae robust, 

 hirsute, eight-spined externally: the tarsi with the second joint about 

 one-half the lenght of the first. Prosternai spine broad at base, short, 

 roundly aeuminate; interspace between the mesosternal lobes about 

 as broad as long. 



Length of body, $ , 39 mm.; of pronotum, 1 1 .5 mm., of teg- 

 mina, 21 mm., of hind femora, 18 mm., of antennae about 20 mm. 



Hah. This locust comes from the same gênerai locality as most 

 of the collection here reported upon, i. e. the eastern slopes of the 

 Andes in north-eastern Peru. 



