Dec, '05] ENTOMOLOGICAL NEWS. 315 



Genus SGOLOCEPHALUS nov. gen. 

 This genus of locusts is at once characterized by the spike- 

 like prolongation of the vertex in front of the eyes, by the wide 

 parallel-sided tegmina, the large fan-shaped wings, and the 

 cylindrical strongly tubercled pronotum. It is further differ- 

 entiated by the long, heavj' antennae, the broadly concave 

 meso- and metasternum, and the long slender abdomen, all of 

 which characters are well shown in the accompanying dorsal 

 and lateral views of Scolocephalus mirabilis which is described 

 herewith. 



Scolocephalus mirabilis n. sp. ( Plate XI. ) 



Dark brownish olivaceous, varied on cheeks below the eyes, lower 

 portion of sides of pronotum and pleura with a rather wide testaceous 

 band. Inner face of hind femora deep blood-red. Tegmina dark 

 olive brown, the veinlets paler, and the surface faintly and irregularly 

 maculate with dull fuscous markings. Wings dark chrome yellow, the 

 apex somewhat infuscated. Hind tibiae internally and inner gena of 

 femora black, the outer face dirty olive brown. Pectus and venter yel- 

 lowish, the abdomen above, especially apically and at the apex of seg- 

 ments, dull olivaceous. Eyes aeneous. 



Head large, a trifle broader than the front edge of the cylindrical pro- 

 notum ; occiput moderately elongate, smooth ; vertex between the eyes 

 about as wide as the shortest diameter of one of them, and provided with 

 a transverse ridge composed of three coalescing tubercles, just in front 

 of this suddenly depressed and giving to the anterior part of the vertex 

 the appearance of being separated from the fastigium. The latter greatly 

 attenuate, rounded and nearly regularly tapering as shown in the illustra- 

 tions, the sides gently undulate or sinuous, and provided with two series 

 of small acute tubercles ; the extreme apex rounded. Frontal costa 

 linearly produced to the apex of fastigium, near the base furcate andsul- 

 cate to the ocellus, obsolete below this. Face from base of antennae to 

 clypeus short, the lateral carinae straight, gently diverging, considerably 

 longer than the cheeks below them. Pronotum cylindrical, rough as well 

 as punctate, without carinae, the anterior and posterior margins broadly 

 rounded and studded with large blunt tubercles as is also the most of the 

 intervening surface ; hind lobe about half as long as the anterior one. 

 Tegmina and wings considerably shorter than the abdomen, but a little 

 surpassing the tip of the hind femora, the former broad, with straight 

 veins, parallel edges and broadly rounded apex ; the latter short and 

 broad with few irregular veinlets. Hind femore elongate, but gently 

 inflated and only slightly attenuated apically, the pinnae on the outer face 

 somewhat irregular ; tibiae hairy, rather deep on basal, gently bowed 

 inwardly and more slender on apical half, outer edge seven spined, the 



