220 BRAZILIAN ORTHOPTERA 



The type locality (Mapiri [or Mapari]) is on the upper Beni, 

 a tributary of the Mamore-Madeira drainage, situated 68° W, 

 14° 40' S. The specimens recorded above are perfectly typical. 

 Spongovostox pygmaeus (Dohrn) 

 1864. P[salidophora] pygmaea Dohi'n, Ent. Zeit. Stettin, xxv, p. 421. [Rio 



de Janeiro, Brazil.] 



Madeira-Mamore R. R. Company Camp 41, Rio Madeira- 

 (Mann and Baker.) One male. 



This specimen differs in several respects from the original de- 

 scription of this variable species, to which, however, it clearly 

 belongs. The forceps have no distinct teeth on the internal 

 margin, but are denticulate for the greater portion of their length, 

 while the pale humeral maculation on the tegmina does not reach 

 the distal margin of the same, the pale area on the exposed por- 

 tion of the wings not being continuous with that on the tegmina. 

 The character of the forceps is as found in the synonymous (ac- 

 cording to Burr) Labia tricolor Kirby from Santarem, Brazil, 

 but the pygidium is as figured by Burr for the species.^ 



The previously known records in addition to those given above 

 are: Brazil (Burr), Peru (Burr). 



We have encountered some difficulty in using the notes and 

 figures made by Burr for the species of this genus.'' Two forms 

 as there treated do not agree with the original descriptions of 

 the species: ghilianii Dohrn being described originally as possess- 

 ing a male pygidium "longe productum, postice rotundatum," 

 while Burr informs us the same is "breit, mehr oder weniger 

 abgerundet, mit einem mikroskopischen Fortsatz an dem Ende"; 

 confusus Borelli was originally figured as having the male pygid- 

 ium nearly a third as long as the forceps, while Burr illustrates 

 this feature as not a tenth the length of the same; the forceps of 

 confusus, which were originally described and figured as being 

 straight for two-thirds of their length with their internal margin 

 armed with a tuberculariform dilation, are figured by Burr as 

 sinuate proximad with several denticulations of quite different 

 character on the internal margin. It appears to us that Dohrn 

 in describing ghilianii probably utilized the Pard specimen col- 

 lected by Ghiliani more than the material from Cayenne and 

 Venezuela, that from the latter locality, in the Vienna Museum, 



8 Ann. K. -K. Naturhist. Hofmus. Wien, xxvi, p. 335, fig. 7, (1912). 

 ' Ibid., pp. 335 to 337, figs. 7 to 16, (1912). 



