136 Annals of the Carnegie Museum. 



Length of body, cf, 9-5 mm., 9, 12 mm.; of pronotum, cf, 9 mm., 9, 

 II. 5 mm.; of hind femora, cf, 6 mm., 9, 7 mm.; length to tip of wings, 

 cT, 12.5 mm., 9, 14.75 i'""''- 



Habitat. — A considerable series of both sexes taken at Chapada, Brazil, 

 during the months of April, May and June, H. H. Smith collector. Car 

 negie Museum, Pittsburgh. 



Tettigidea multicostata Bolivar. 



Tetligidea multicostata Bolivar, Ann. Soc. Ent. Belg., XXXI, 1887, 299. — Bruner, 

 Locusts of Argentina, 1900, 17; Proc. U. S. Nat. Mus., XXX, 1906, 616. — 

 Hancock, Genera Insectorum, fasc. 48, 1906, 68. 



Habitat. — Brazil, Paraguay, Bolivia, and northern Argentina. Cor- 

 umba, Brazil, and Paraguay. Carnegie Museum, Pittsburgh. 



While this insect is quite widely distributed over several South American 

 countries it does not appear to vary much in pronotal length or size. On 

 the other hand it is quite markedly variable in the prominence of the 

 supplemental longitudinal carinas of the disk of the pronotum and in its 

 coloration. 



Tettigidea corrugata sp. nov. 



A large, robust species with coarse hind femora and abbreviated pro- 

 notum and wings in which there are present on the disk of the former a 

 number of supplemental, longitudinal carina, and where the median carina 

 is very prominent, coarse, and evenly arcuate. 



Head very deeply sunken into the front edge of the pronotum, the 

 occiput being completely hidden by the strongly angulate anterior portion 

 of its dorsum; eyes rather small, not prominent; vertex well advanced in 

 front of the eyes, the lateral or transverse carinse coarse and prominent; 

 frontal costa also coarse and prominent, narrowly sulcate but with heavy 

 lateral walls, originating above opposite the middle of the eyes in a fairly 

 deep sulcus between two coarse longitudinal granulated ridges. Antennae 

 filiform, of moderate length. Pronotum abbreviated tectate, granulose, 

 the median carina prominent, coarse, arcuate, lateral carinae scarcely 

 interrupted, sinuose '"n advance of the shoulders, the disk provided with 

 rather prominent supplemental carinae which are present even in advance 

 of the transverse sulci; anterior edge forming nearly a right angle and 

 ending in a prominent spine that projects slightly beyond the upper part 

 of the frontal costa. Hind femora robust, rugose, extending a trifle 

 beyond the tip of the ovipositor, the valves of which are rather long and 

 slender. Tegmina small, elongate, unicolorous. 



