30 PROCEEDINGS OF THE ACADEMY OF [Feb., 



COCYTOTETTIX'^n. n. 



1900. Fenestra Bruner (not of Giglio-Tos), Ace. Gen. Spec. Locusts Argent., 

 pp. 22, 30." 



Included F. pulchripennis, intermedia and argentina Bruner, of 

 which the first may be considered the type. 



This genus is quite distinct from any other, but is nearer to the 

 North American Chloealtis than any South American type. The 

 Matto Grosso C. linearis " is rather aberrant in the slender form, 

 narrow tegmina, weaker carina and more hyaline wings. 



Cocytotettix pulchripennis (Bruner). 



1900. F[enestra] pulchripennis Bruner, Ace. Gen, Spec. Locusts Argent., 

 p. 30. [Argentina; open camp.] 



Carcarana, Santa Fe, Argentina. 2 cJ^d^. (Through L. Bruner, 

 A. N. S. P.) 



Cocytotettix intermedins (Bruner) 



1900. F[enestra] intermedia Bruner, Ace. Gen. Spec. Locusts Argent., p. 31. 

 [Carcarana, Argentina.] 



Carcarana, Santa Fe, Argentina. 2 (^(j, \ 9. (Through L. 

 Bruner, A. N. S. P.) 



The cJ* of this species superficially remind one of the males of the 

 certain species of the genus Syrbula. 



TOXOPTERUS Bolivar. 

 1890. Toxopterus Bolivar, Anales Soc. Espan. Hist. Xat., XIX, p. 313. 

 Type. — T. miniatus Bolivar. 



This genus is rather aberrant and isolated in position in consequence, 

 but its position is in the Orphulellse, and nearer to Cocytotettix than 

 any other genus. The structure of the antennae is similar to that of 

 Gomphocerus, but such resemblance is also found in Eritettix, which is a 

 member of the Amblytropidise, and are superficial and not of great 

 taxonomic value. 

 Toxopterus miniatus Bolivar. 



1890. Toxopterus miniatus Bolivar, Anales Soc. Espaii. Hist. Xat., XIX, p. 

 314. [Cumbase, Peru.] 



Sapucay, Paraguay. January 18, 1903. January 28, February 6- 

 25, March 2-10, 1905. 7 d'd', 13 9 9. (Foster, Hebard Coll.) 



12 -pj-jg genus Fenestra is invalid from Bruner {Ann. Mas. Civ. Stor. Nat. 

 Genova, XXXIII, p. 120, 1893), as he designates no named species for type or 

 included forms. Tlie first species named under the generic term Fenestra was 

 F. bohlsii GigUo-Tos (Zooi. Jahrb., Syst., VIII, p. 807, 1895), which, on a subse- 

 quent page (p. 32), I will show to be the species later named Dichroatettix viridi- 

 frons Bruner, and for which the generic name Fenestra must be used. 



13 Kui^vTo^, shrieking, tettie, grasshopper; in allusion to the loud stridulations . 

 1* Proc. U. S. Nat. Mus., XXX, p. 374. 



