648 PROCEEDINGS OF TIfE NATIONAL MUSEUM. vol. xxx. 



Length of body, male, 28, female, 43; of pronotum, male, 9, female, 

 14: of tegmiria, male, 24, female, 81; of hind femora, male, 16.5, female, 

 24; of antennfp, male, 10, female, 14 mm. 



Ti/jM.— Cat. No. 9720, U.S.N.M. 



Habitat. — Sapuca}^, Paraguay, November to March, 9 males and S 

 females collected by W. T. Foster (coll. U. S. Nat. Mas.). It is also 

 represented by a single male each in the collection of the Philadelphia 

 Academy of Sciences and in the private one of the writer. 



TROPINOTUS SCABRIPES Stal. 



Tropidonotiis scahripes Stal, Obs. Orthopt., Ill, 1878, p. 19. 

 Tropinotus scabripes Briner, Ent. News, XVI, 1905, p. 215. 



Habitat. — Recorded from central Brazil in company with the fol- 

 lowing species. It is very evidentl}- also to l)e found in iiorthern 

 Paraguay, since the species of this genus seem to be I'ather widel}" dis- 

 tributed if suitable environment is to be had. 



TROPINOTUS L^VIPES Stal. 



Plate XXXVII, fig. 7. 



Tropidonotus lu'vipes SrAh, Obs. Orthopt., Ill, 1878, p. 20. 

 Tropinotus Ixvipes Bruner, Ent. News, XVI, 1905, p. 215. 



Habitat. — Four males and four females, Sapucav, Paraguay, col- 

 lected by W. T. Foster. 



This is by far the commonest species in Argentina and is found as 

 far south as Buenos Aires. 



TROPINOTUS GRACILIS Bruner. 



Tropinotus (jmcilis 'Brvher, Ent. News, XVI, 1905, p. 215. 

 This, the most slender of the known forms, will pro])iibly be found 

 in eastern Paraguay, as well as about Sao Paulo. Brazil, the locality 

 from which the t3'pe specimens were o])tain<Hl. 



TROPINOTUS LINEATUS, new species. 



A medium sized, rather robust insect, the general color of which is 

 dark ferruginous to brown. Pronotal crest smooth; the genicular 

 lobes of the hind femora not greatly elongate nor acute. Disk of the 

 tegmina very obscurely maculate with large brown patches distrib- 

 uted similarly to those in discoideus., and provided with a narrow sub- 

 costal testaceous line that reaches from the base to a little beyond the 

 middle. 



Head of medium size, nearly as wide above as below; the occiput pro- 

 vided with a well-defined longitudinal median carina which extends to 

 the fastigium of the vertex; vertex nearly (male) or quite (female) as 

 broad as the longest diameter of one of the eyes, fastigium a little less 

 tlmii a right angle, the walls pi'oniiiioiit: frontal costa only moderatel}' 



