18 Annals of the Carnegie Museum. 



Maslax minuta Bolivar. An. Soc. Espan. Hist. Nat., X, p. 481 (1881). 

 Eumastax tenuis Burr, Essai sur les Eumastacides, pp. 44, 45 (1899); Ib., Gen. 



Ins., Fasc. 15, Orthop. Eumastac, p. 16 (1903)- 



Two females belonging to the genus Eumastax are referred to this 

 species, even though they are a little small, as compared with the 

 measurements given for it. They are from Buena Vista, eastern 

 Bolivia, where they were collected by J. Steinbach, C. IVI. Ace. No. 

 5573- 



26. Eumastax militaris (Gerstsecker) ? 



Maslax militaris GersT/ECKER, Mitth. Neu-Vorpomm. u. Riigen, XIX, and XX, 



p. 84 (1888); Karsch, Ent. Nachr., XV, p. 36 p. 36 (1889). 

 Eumastax militaris Burr, Essai sur les Eumastacides, pp. 44, 54 (1899); Ib., Gen. 



Ins., Fasc. 15, Orth. Eumast., p. 16 (1903)- 



Three female specimens taken in the month of May, 191 7, bear the 

 label "Mana River, Fr. Guiana." They were evidently collected 

 by S. M. Klages, and belong to C. M. Ace. No. 6008. A fourth 

 specimen, also a female, is from the Upper Rocana, N. Para, Brazil. 

 It was taken by the same collector in July, 191 8, C. M. Ace. No. 6175. 



These specimens are doubtfully referred to militaris, since they 

 come from a region rather widely removed from the habitat given 

 for the species. 



Genus Paramastax Burr. 



Parafnaslax Burr, An. Soc. Espail., Hist. Nat., XXVIII, pp. 90, 94, 268 (1899); 

 Ib., Gen. Ins., Fasc. 15, Orth. Eumastac, pp. ij, 16 (1903); Bruner, Biol. 

 Cent. Amer., Orth., II, pp. 20, 23 (1901); Saussure, Rev. Suisse Zool., XI, p. 

 91 (1903); KiRBY, Syn. Cat. Orth., Ill, p. 77 (1910). 



This is one of the larger genera of the family the species of which 

 are wholly confined to tropical America and chiefly to South America. 

 At least nine species have thus far been recognized, and a tenth is 

 now added. They are all more or less gaudily colored, and may be 

 separated by the accompanying synoptical table based on the males. 

 It is a modification of the keys given by Burr and Saussure: 



Synopsis of the Species of Paramastax. 



A. Cerci of males forked. 



b. Anterior and middle legs black. Wings cinnamon-hrown. . gaudens Burr. 

 bb. Anterior and middle legs rufous. 



c. Wings a'neous or brassy, shining. 



d. Hind femora rufous towards the apex vicina Burr. 



dd. Hind femora with their apex infuscate, not rufous. 



magna Giglio-Tos. 



