Bruner: South Ami khan Acridoidea. :;7 



( renus Si ik \n 1:1 r \ Scudder. 



Stirapltura Sci dder, in Wheeler, Ann. Rept. I'. S. Geol. and Geogr. sun,, \\ 

 m, nil Merid . is:<>. Append. .1.1. p. 290 1 1876). 



51. Stirapleura brunnea Rehn? 

 Stirapleura brunnea Rehn, I'm, . I. s. Nat. Mus., XXX, p. 390 (1906). 



Several specimens of a locust, which appears to be most closely 

 related to the presenl species, are before me. While these insects 

 .u'c quite variable in their coloration, and to some extent also in the 

 form and prominence of the lateral carina? of the pronotum, they might 

 all he included under a single species. Rehn's measurement of the 

 pronotal length of his types, however, is too great by .5 mm. for the 

 males and by .7 mm. for the females now at hand. Otherwise they 

 agree almost exactly. 



I had placed this insect aside under the manuscript name Pcllopedon 

 obscurum, and should a remeasurement of Rehn's types prove the 

 figures as given by him to be correct, I would then consider the two 

 form- distinct, and suggest the aUove name for these individuals. 

 The present form and the insect described by Rehn as Stereotettix 

 paralogistes are also rather closely related generically. 



Habitat. — Chapada, near Cuyaba, Matto Grosso, Brazil, May to 

 September (II. II. Smith). Numerous specimens of both sexes. Col- 

 lection of Carnegie Museum. 



Family LOCUSTIIXE [CEdipodidee]. 

 This family is very poorly represented in South America, and is 

 especially so in the present collection. 



Genus Cosloptekxa Stal. 

 Cceloptera Stal, Oefv. Vet.-Akad. Forh., XXX, no. 4, p. 53 (1873). 



Only a single species of this subaquatic (Edipodine genus is known, 

 notwithstanding its rather wide distribution. 



52. Coelopterna acuminata (De Geer). 

 Hum acuminatum De Geer, Mem. Ins., III. p. 501, pi. 42, fig. 10 (1773)- 

 Coelopterna acuminata Stal, Recens. Orthopt., I, p. 145 (1873). 

 ? Paulinia mucosa BLANCHARD, in D'Orbi.nny, Voy. Amer. Mcrid., VI, no. 2, p. 216, 



pi. 27, fig. 6 (1843). 

 Coelopterna stalli SCUDDER, Proc. Bost. Soc. Nat. Hist., XVII, p. 277 (1875). 

 Epacromia je/a(o Walker, Cat. Dermapt. Salt. Brit. Mus., Y, Suppl., p. 84(1871). 

 Coelopterna acuminata var. brevipennis (">i<;l 10-Tos, Boll. Mus Zool. Anat. Torino, 

 IX. no. 184, p. 7 (1894). 



