LIST OF PARAG UA YAN LOCUSTS— BR UNER. ()49 



prominent, narrowed above, gently sulcate and more (female) or less 

 (male) strongl}' punctate; face quite strongly punctate, cheeks some- 

 what rugose; antenniv with the joints of ))asal half somewhat depressed. 

 Pronotum strongly crested, the median carina smooth, plainly cut l)y 

 all three of the transverse sulci; lateral carina also cut b}^ the sulci, 

 in some specimens fainth' crenulate; disk granulose, and on the hind 

 lobe provided on each side with four or live tine ridges parallel to lat- 

 eral margins; lateral lobes profusely punctate; hind and front margins 

 both acute, the hind lobe nearly twice as long as the front one. Teg- 

 mina profusely veined on basal, less so on apical half, extending beyond 

 the tip of hind femora and abdomen in the two sexes; hind femora 

 moderately robust, the superior carina plainl}^ serrate, genicular lobes 

 subacute, not greatlv elongated. Last ventral segment of male abdo- 

 men cuneate, the middle strongl}^ carinate. 



General color dark ferruginous to brown, in some individuals largeh" 

 green on occiput, disk of pronotum and the anterior and posterior 

 fields of the tegmina; disk of latter more or less strongly marked with 

 large brown or fuscous patches as in dtscoideuK. Principal longitudi- 

 nal veins basal half of tegmina black conspersed with yellow or testa- 

 ceous. The characteristic color feature of the tegmina is, however, 

 the narrow pale stripe between the median and subcostal veins, and 

 which has suggested the specific name. Hind femora granulose, the 

 carina more or less strongly conspersed with black on the serrations. 

 Hind tibia3 with the spines black tipped. 



Length of body, male, 32, female, 40-42; of pronotum, male, 13, 

 female, 15.5-17; of tegmina, male, 26, female, 34; of hind femora, 

 male, 18, female, 23-24 mm. 



Ti/j)e.—Csit No. 9733 U.S.N.M. 



Huhitat. — Several specimens of both sexes at Sapucay, Paraguay, 

 by W. T. Foster. 



ALCAMENES Stal. 



• TABLE FOR DETERMINATION OF SPECIES. 



a. Pronotum with the median carina tectiformly elevated. Tlie iio^terior lobe much 

 longer than the anterior one. 

 h. Anterior and middle sulci of the pronotum ob.solete above. Tegmina twice 



maculate. Hind tibite 12-13 spined in outer row granulatufi Stal 



bb. Anterior and middle sulci of the jjronotum strongly impressed, cutting the 

 crest. Tegmina immaculate. Hind tibiae 10-11 spined in outer row. 



cristatus, new species 

 aa. Pronotum with the median carina only moderately elevated. The posterior 

 lobe shorter than the anterior one. 

 b. Body slender. The posterior sulcus of the pronotum a little more prominent 

 than the others. Posterior margin obtuse. The hind femora slender. 



brevicollis Stal 

 bb. Body heavy. The posterior sulcus of the pronotum strongly inqiressed. Pos- 

 terior margin a right angle. The hind femora tumid at the base. 



clarazianus IMctet and Saussare 



