216 BRAZILIAN ORTHOPTERA 



the collections of the Academy of Natural Sciences of Philadel- 

 phia. The first set and greater portion of the Stanford material 

 has been placed in the collections of the same Academy, while a 

 smaller set will be retained by Stanford University. 



In the present paper are treated one hundred and twenty-five 

 species, belonging to eighty-five genera, of which seventeen 

 species and two genera are described as new. The total number 

 of specimens examined in this connection is three hundred and 

 seventy-five. 



DERMAPTERA 

 Pygidicranidae 



Pygidicrana V-nigrum (Serville) 



1831. Pygidicrana V-nigrum Serville, Ann. Sci. Nat. xxii, p. 31. [Brazil.] 

 Natal, Rio Grande do Norte. (Mann.) One imperfect 

 immature specimen. 

 This individual has lost the apex of its abdomen, so the sex is 

 uncertain. 



Pyragropsis- brunnea (Burr) 



1909. Pyragra brunnea Burr, Ann. and Mag. Nat. Hist., (8), iii, p. 254. [Fon- 

 teboa, Brazil (nee Peru); Iguapo, Peru.] 



• Para, Para. (Mann.) Two females. 

 Porto Velho, Rio Madeira. One immature female. 



The immature female has lateral series of small yellowish spots 

 on the dorsal segments of the abdomen, such as are mentioned by 

 Borelli as occurring occasionally in P. paragumjensis. The Para 

 record is the most eastern for the species. 



Pyragropsis emarginata new species (Plate XIV, fig. 1.) 



Type. — -cf ; Manaos, Amazonas, Brazil. (Stanford Brazilian 

 Expedition; Mann and Baker.) [Acad. Nat. Sci. Phila., Type 

 no. 5233.] 



This very striking species is clearly a member of the genus 

 Pyragropsis^ agreeing with the original description of the genus 

 in every important character but one, namely, the emargination 

 of the margin of the penultimate ventral abdominal segment. 



* For remarks on the genus see Burr, Ann. K.-K. Naturhist. Hofmus. Wien,. 

 xxvi, p. 334, (1912). 



3 Boll. Mus. Zool. Anat. Comp. Univ. Torino, xxiii, no. 594, p. 2, (1908). 



