JAMES A. G. REHN 
349 
common with other material from the eastern coastal region of 
Brazil (Espirito Santo and Rio de Janeiro) they have the fastig- 
ium narrower in both sexes than in the Paraguayan individuals. 
The species is known to range northward as far as Pard, Brazil, 
southward to Santa Catharina, Brazil and westward to northern 
Argentina. 
Abracris caernleipennis (Bruner) 
1900. Jodacris (?) caeruleipennis Bruner, Second Rep. Merchants Loc. Invest. 
Comm. Buenes Aires, p. 68. [Asuncion, Paraguay; Territory of Formosa, 
Argentina.] 
Tijuca. April 9 to 11, 1913. (IMalcolm Burr.) One male, 
one female. 
These specimens are quite pale in general coloration, in this 
respect resembling a pair from Chapada, iNIatta Grosso, Brazil, 
now before us, but in the case of the Tijuca pair this may be due 
to specimens having been immersed in alcohol, which, however, 
was not the case with the Chapada pair. This species is the 
most variable and perplexing member of the genus, having caused 
some confusion in our studies of the material of this genus in the 
past.® 
The species is known from as far north as the state of Pard, 
Brazil, and south to the Misiones and province of Formosa, 
Argentina, west to southern Bolivia. 
Sitalces volxemi Stil 
1878. S[italces] volxemi StS,l, Bihang K. Svenska Vet. Akad. Handl., v, no. 
9, p. 16. [Brazil.] 
Petropolis. April 12 to 14, 1913. (INIalcohn Burr.) One 
female. 
* As we have shown elsewhere (Trans. Amer. Entom. Soc., xlii, p. 294, 
(1916) the following records of signatipes made by us refer to caeruleipennis: 
Proc. Acad. Nat. Sci. Phila., 1907, p. 185 (Sapucay, Paraguay) [part]; Ibid., 
1908, p. 17 (Sao Paulo, Brazil); Proc. U. S. Nat. Mus., xx.xvi, p. 149 (part; 
Chapada, Brazil material); Proc. Acad. Nat. Sci. Phila., 1913, p. 339 (Mi- 
siones, Argentina); Ibid., 1915, p. 285 (Misiones, Argentina). The closely 
related A. conspersipennis Bruner (Biol. Cent. -Amer., Orth., ii, p. 281, (1908)), 
from Chapada, Brazil, we have not recognized in the collections in hand. It 
is described as having the interocular space about as wide as the frontal costa 
in both sexes (Ann. Carneg. Mus., viii, p. 110, (1911)), a condition we have 
never seen. 
TRANS. AM. ENT. SOC., XLIII. 
