ON BRAZILIAN GRASSHOPPERS OF THE SUBFAMILIES PYRGOMORPHIN^ AND LOCUSTIN^ (ACRIDIN^ OF AUTHORS). By James A. G. Rehn, Of the Academy of Natural Sciences of Philadelphia. The following study is based upon a series of one hundred and ninety-two specimens of Brazilian Pyrgomorphinae and Locustinge belonging chiefly to the collection of the United States National Museum. Fifty-three species are treated in the paper, of which sev-enteen are new, four new genera also being described in these pages. Of the series studied by far the greater portion is from the collec-tions made by Mr. H. H. Smith in the State of Matto Grosso and at Rio de Janeiro, while a smaller series, taken by Mr. A. Koebele in northeastern Brazil in the States of Pernambuco and Bahia, is even proportionately more interesting. My acknowledgments are due the authorities of the National Museum for their kindness in permitting me to examine the museum material. My thanks are here given also to Mr. Morgan Hebard, from whose collection was received for study a portion of the series here treated. SublaiTiily PYRGOMCORPIIIN^E. Genus ALGETE Bolivar. 1905. Algete Bolivar, Boletm Real Soc. Esp. Hist. Nat., V, p. 213. Type. — A. hrunneri Bolivar. ALGETE BRUNNERI Bolivar. 1905. Algete hrunneri Bolivar, Boletin Real Soc. Esp. Hist. Nat., V, p. 214. [Pernambuco, Brazil.] Bonito, Pernambuco, Brazil, January 27, 1883. (A. Koebele.) [U.S.N.M.] One mature male, one immature female. The above listed specimens clearly belong to this very distinct form. One individual is labeled ''on cotton." Proceedings U. S, National Museum, Vol. XXXVI— No. 1661. 109
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