JAMES A. G. REHN 
335 
ON ORTHOPTERA FROM THE VICINITY OF RIO DE 
JANEIRO, BRAZIL 
BY JAMES A. G. REHN 
The interestinp; collection here discussed was made in April, 
1913, by Dr. iMalcolni Burr, the distinguished British Dermap- 
terist andOrthopterist,in the course of a brief stay in the neighbor- 
hood of Rio de Janeiro. Dr. Burr very kindly placed the collec- 
tion in our hands for study, permitting us to retain for the 
Academy collection the first set, while a second set will be for- 
warded to the Oxford Museum. The localities represented are: 
Tijuca, on the southwestern outskirts of the metropolis; Pet- 
ropolis, immediately over the crest of the neighboring Serra de 
Estrella to the northward, and the city of Rio itself, a very few 
specimens being so labelled. 
The particular interest which attaches to the collection is that 
it is from a region, which, although the metropolitan center of 
Brazil, has been neglected by entomologists in recent j^ears, so 
much so that certain species described from the localit}” by the 
older authors have been generally misidentified by subsequent 
workers. In proportion to its size, therefore, the present series 
has been of exceptional interest and great value. 
The collection comprises two hundred and eighty-seven speci- 
mens, representing forty species belonging to thirt 3 '-three genera, 
of which one genus and three species proved to be new. A ke,v 
to the species of the genus Symphyloxiphus, which was made 
possible largely by the present material, has been added. 
We wish to thank Dr. Burr for his kindness in permitting us to 
study this most important though limited series. 
BLATTIDAE 
PSEUDOMOPINAE 
Ischnoptera parvula Saussure 
1868. I[sch7ioptera] parvula Saussure, Revue et ^lagasin de Zoologie, 2e ser., 
xxi, p. 112. [Brazil.] 
Petropolis. April 12 to 14, 1913. Two females. 
TRAXS. AM. EXT. SOC., XLIII. 
