Brunf.r : South American TETRiGiDiE. 117 



western parts of Argentina. Xo specimens seem to be at hand among 

 the II. 11. Smith collection now being studied. 



Allotettix chipmani Hniner. 



AUoteltix chipmani Bruner, Journ. N. V. Ent. Soc, XIV, 1906, 146. — Hancock, 

 Genera Insectorum, fasc. 48, 1906, 48. 



Habitat. — Trinidad Island, West Indies and British Guiana, South 



America. 



Allotettix cayennensis Bolivar. 



Paratettix cayennensis Bolivar, Ann. Soc. Ent. Belg., XXXI, 1887, 273. 

 Allotettix cayennensis Hancock, Genera Insectorum, fasc. 48, 1906, 48. 



Habitat. — Originally described from Cayenne, French Guiana. There 

 are several specimens at hand which were taken at Santarem, Brazil. 

 They were collected in the month of August. Carnegie Museum, Pitts- 

 burgh. 



Allotettix chapadensis sp. nov. 



This insect seems to be most closely related to A. cayennensis oi Bolivar, 

 from which it diders most notably in the form of the middle femora, which 

 are somewhat clypeate or foliaceous in the present species. 



Head small, the summit depressed, tricarinate, coarsely granulate; 

 fastigium not advanced in front of the eyes, the lateral carinse only moder- 

 ately prominent, abruptly bent to the rear and following the inner edge 

 of the eyes to their middle; frontal costa quite abruptly prominent be- 

 tween the antenna?, its sides rather widely divergent and profoundly 

 sulcate; posterior ocelli situated just below the middle and the antennae 

 below the lower edge of the eyes. Pronotum lengthily caudate, the sur- 

 face closely granulose and provided on the disk between the somewhat 

 angulate humeri with a few irregular rugosities, the surface back of this 

 and between tho apical half of the tegmina gently depressed; median 

 carina slender but prominent, anteriorly elevated between the transverse 

 sulci, very low^ just in advance of the humeri, viewed laterally gently 

 undulate; posterior lateral edges widely rounded and little turned out. 

 Tegmina of moderate size, elongate oval, the surface rather evenly and 

 coarsely punctate. Anterior femora normal, middle femora with the 

 upper and lower carina? somewhat clypeate, more or less undulate, not 

 much more than twice as long as their extreme width ; hind femora normal, 

 the tibiic irregularly spined, the first joint of the tarsi a little longer than 

 the third. 



General color dull fuscous, becoming a little paler at sides of pronotum. 



