Sept., 1904.] Caudell : Orthoptera from Paraguay. 183 



Ischnoptera brasiliensis Brunner. 



Ischnoptera brasiliensis Brunn., Nouv. Syst. Blatt., 130, 1865. 



Ischtiop'era brasiliensis Giglio-Tos, Boll. Mus. Torino, xv, No. 377, 2, 1900. 



Seven males, February, September and October. 



This species is very closely allied to /. uhleriana Sauss. , and may 

 be but a form of that species. The females of all the species of this 

 genus are apparently much scarcer than the males. 

 Ischnoptera vilis Saussure. 

 Ischnoptera vilis Sauss., Rev. Mag. Zool., xxi, II2, 1869. 



Six males, December to May. 

 Blattella borellii Giglio-Tos. 



Phyllodromia borellii Giglio-Tos, Boll. Mus. Torino, ix No. 184, 2, 1894. 



One male, March. 



This imperfect specimen, lacking the body and most of the legs, 

 seems to agree fairly well with the description of this species except 

 that the femora are black and the elytra measure bat 7.5 mm. in 

 length. 



Blattella conspersa Brunner. 

 Phyllodro7nis conspersa Brunn., Nouv. Syst. Blatt., 106, 1865. 



One male, no date. 



This species is somewhat smaller than B. brunneriana, which has 

 been recorded from Paraguay. These two species may prove to be 

 the same. 



Blattella germanica Linnasus. 



Blatta gerina)iica Linn., Syst. Nat., ed. xii, ii, 688, 1766. 

 Phyllodromia germanica Brunn., Nouv. Syst. Blatt., 90, fig. 7, 1865. 

 Blattella germanica Caudell, Proc. Ent. Soc. Wash., v, 234, 1903. 

 PhyUodromia bivitfa'a Serv., Orth., loS, 1S39. 



Two males, October ; one female, February. 



Some orthopterists consider bivittata Serv. as distinct from german- 

 ica Linn, but from a study of specimens from the United States, Porto 

 Rico, Mexico and South America, I find the venation of the wings 

 offers no constant character for their separation. 



This species has been mentioned from Paraguay in several papers. 

 Nyctibora confusa Giglio-Tos. 

 Nyctibora confusa Giglio-Tos, Boll. Mus. Torino, xii. No. 302, 8, 1897. 



One female February. 



This species was recorded by Giglio-Tos in various papers on the 

 Orthoptera of Paraguay under the name M. holosericea Burm. 



