262 BRAZILIAN ORTHOPTERA 



Measurements (in millimeters) 



cf 9 



(allotype) (type) 



Length of body, Abdomen imperfect. 30.8 (slightly shrunken) 



Length of pronotum, 8.9 10 . 3 



Greatest width of pronotum, 3.6 4.7 



Length of tegmen, 30.8 16.3 



Greatest width of tegmen, 8 (approximately) 11.6 



Length of cephahc femur, 9 11.6 



In addition to the type and allotype we have before us a topo- 

 typic immature female. This individual, although but half 

 grown, shows clearly the specific peculiarities. 



MIOPTERYGINAE 

 Pseudomiopteryx guyanensis Chopard 



1911. P[seudomiopteryz] guyanensis Chopard, Ann. Soc. Entom. France, 

 Ixxx, p. 324, figs. [Saint Jean and Saint Laurent du Maroni, French Guiana.] 



Para, Pard. (W. M. Mann.) One female. 



We have compared this specimen with a cotypic pair from Saint 

 Jean and Saint Laurent in the Hebard Collection. The Para 

 individual is appreciably smaller than the cotypic female, but in 

 character is fully typical of the species. When compared with 

 the male sex of the allied M. infuscata Saussure and Zehntner, 

 from Costa Rica, Chopard's species is seen to differ in the male 

 sex in the facial shield being less strongly transverse and the 

 dorsal margin of the same more angulate, in the tubercles of the 

 dorsum of the pronotum being blunter, in the smaller and more 

 irregular reticulations of the tegmina and in the shorter and more 

 decidedly transverse supra-anal plate. 



The present record extends the range of the species to the 

 southeastward. 



Thesprotia species 



Porto Velho, Rio Madeira. (Mann and Baker.) One 



female. 

 Madeira-Mamore Railroad Camp 39, Rio Madeira. (Mann 

 and Baker.) One male. 

 The male of this pair has lost the greater portion of the abdo- 

 men and its determination is accordingly very difficult, which, 

 however, the acquisition in future of more material from the 

 Guianas and eastern Brazil may make easier, by giving us topo- 

 types of cei-tain of the little known species of the older authors, 

 described from these regions. 



