Bruner: South American Crickets. 367 



23. Rhipipteryx marginipennis sp. nov. 



Related to R. mexicana and its allies, but with the pale markings 

 on the disc of the pronotum similar to those of bridlei, marginata, and 

 rividaria. 



Head of moderate size, the eyes with, or without, pale border on the 

 surrounding portions of the face. Antennae with the basal and three 

 apical segments black, the second to the seventh segments largely 

 pallid. Pronotum entirely and broadly pale-bordered, the disc 

 furnished with two narrow anteriorly divergent lines. Middle femora 

 pale-bordered below; the hind pair similarly bordered both above and 

 below; the genicular area of the latter, except the lobes, which are 

 largely black, tinged with dull ferruginous; the anterior tibiae and 

 the ape.x of the front femur tinged with fusco-ferruginous; hind meta- 

 tarsus about as long as the tibial claws, gently acuminate. Tegmina 

 and folded wings with their dorsal edge conspicuously pale-margined. 

 Abdomen black, without pale margins on the apex of the segments. 

 Tip of the abdomen rather simple. 



Length of body of both male and female, including wings, 8 mm. 



Habitat. — The collection contains two specimens, a male and a 

 female, respectively, bearing the labels "Chapada, Nov." and "Chap- 

 ada, April." There is also an immature specimen at hand which I 

 am inclined to place here. It has the hind femora largely ferruginous 

 and lacks the divergent pale lines on the disc of the pronotum. This 

 latter specimen bears the label "Chapada, Matto Grosso, H. H. 

 Smith, Ace. 2966." 



24. Rhipipteryx pulicaria Saussure. 



Rhipipteryx pulicaria Saussure, Biol. Cent.-Amer., I (1896), p. 215, pi. 11, fig. 24; 



KiRBY, Syn. Cat. Orth., II (1906), p. 13. 

 R. pulicaria var. peruviana Saussure, /. c, p. 216; Kirby, I. c, p. 13. 



There are at least seventy-five specimens of what seems to be 

 Saussure's R. pulicaria. This material comes from a number of 

 localities in Brazil, Bolivia, and even from the Island of Trinidad. 

 There is quite a wide range of variation among these specimens so far 

 as color is concerned, as well as some in size. Specimens coming from 

 Chapada and Corumba, Brazil, were taken during nearly every month 

 of the year by H. H. Smith; some were collected at Puerto Suarez, 

 Bolivia, by J. Steinbach, while others bear the label "Jacore, Minas 

 Geraes, Brazil, Dec. li, 1907," and were collected by Haseman. The 



