I tifflm EBBS mwbbBKHBb— VKB9H HafiEffifi mm I HSU m So WJm Z£k M3B&KJX tcTjcc cccj LCCifi: r c<3s5 cOTOSS sxc: 43C33r Cjr<« csGcr *- Cat: m c sz5dsD^ <ysc_c:«f3 cere ccs cm cc ^ C3CS CtJC"^ cor ccjtjl 47 abib^ VffFEB 2 1940 * PROCEEDINGSXs.'fc OP THE Biological Society of Washington VOLUME 50 1937 WASHINGTON PRINTED FOR THE SOCIETY COMMITTEE ON PUBLICATIONS HERBERT FRIEDMANN, Chairman REMINGTON KELLOGG F. C. LINCOLN E. P. KILLIP J. S. WADE PUBLICATION NOTE By a change in the By-Laws of the Biological Society of Washington, effective March 27, 1926, the fiscal year now begins in May, and the offi- cers will henceforth hold office from May to May. This, however, will make no change in the volumes of the Proceedings, which will continue to coincide with the calendar year. In order to furnish desired informa- tion, the title page of the current volume and the list of newly elected officers and committees will hereafter be published soon after the annual election in May. OF H. L. & J. B. McQueen, Inc. Washington, D. C. OFFICERS AND COUNCIL OF THE BIOLOGICAL SOCIETY OF WASHINGTON (FOR 1937-1938) (ELECTED MAY 15, 1937) OFFICERS President H. C. FULLER Vice-Presidents (In the order of election) C. W. STILES WM. B. BELL T. H. KEARNEY E. P. WALKER Recording Secretary S. F. BLAKE Corresponding Secretary J. S. WADE Treasurer F. C. LINCOLN COUNCIL Elected Members A. A. DOOLITTLE J. E. SHILLINGER I. N. HOFFMAN A. L. NELSON J. E. BENEDICT, JR. Ex-Presidents V. BAILEY H. H. T. JACKSON PAUL BARTSCH C. HART MERRIAM C. E. CHAMBLISS H. C. OBERHOLSER E. A. GOLDMAN T. S. PALMER W. P. HAY S. A. ROHWER A. D. HOPKINS H. M. SMITH L. O. HOWARD L. STEJNEGER A. WETMORE STANDING COMMITTEES—1937-1938 Committee on Communications J. E. Shillinger, Chairman H. C. Bryant E. G. Holt W. L. Schmitt C. COTTAM Phoebe Knappen F. Thone Committee on Zoological Nomenclature H. C. Oberholser, Chairman Paul Bartsch H. H. T. Jackson Austin H. Clark S. A. Rohwer Committee on Publications Herbert Friedmann, Chairman Remington Kellogg F. C. Lincoln E. P. Killip J. S. Wade Trustees of Permanent Funds T. S. Palmer (1936-1938), Chairman H. C. Oberholser (1937-1939) M. B. Waite (1937-1939) (uTT EX-PRESIDENTS OF THE BIOLOGICAL SOCIETY OF WASHINGTON Theodore N. Gill, 1881, 1882 Charles A. White, 1883, 1884 G. Brown Goode, 1885, 1886 William H. Dall, 1887, 1888 Lester F. Ward, 1889, 1890 C. Hart Merriam, 1891, 1892 C. V. Riley, 1893, 1894 *Geo. M. Sternberg, 1895, 1896 L. O. Howard, 1897, 1898 Frederick V. Coville, 1899, 1900 F. A. Lucas, 1901, 1902 B. W. Evermann, 1903, 1904 F. H. Knowlton, 1905, 1906 L. Stejneger, 1907, 1908 T. S. Palmer, 1909, 1910 David White, 1911 E. W. Nelson, 1912, 1913 Paul Bartsch, 1914, 1915 W. P. Hay, 1916, 1917 J. N. Rose, 1918 Hugh M. Smith, 1919 A. D. Hopkins, 1920 N. Hollister, 1921 Vernon Bailey, 1922 A. S. Hitchcock, 1923 J. W. Gidley, 1924 S. A. Rohwer, 1925 H. C. Oberholser, 1926-1927 E. A. Goldman, 1927-1929 Alexander Wetmore, 1929-1931 H. H. T. Jackson, 1931-1933 C. E. Chambliss, 1933-1935 Deceased. (iv) TABLE OF CONTENTS. Officers and Committees for 1937 iii-iv Proceedings for 1937 ix-xiii A New Genus of Tyrant-Flycatchers, by Pierce Brodkorb.... 1 New and Noteworthy Northwestern Plants. Part 7, by Harold St. John. - 3-5 The Southern Races of the Great Ant-Shrike, Taraba major, by Pierce Brodkorb 7-8 The Status of Hyla evittata Miller, by Emmett Reid Dunn. 9-10 Notes on Some Colombian Reptiles, by Emmett Reid Dunn 11-13 A New Species of Spathacanthus from Guatemala, by E. D. Leonard 15-16 Notes on Astragalus (Tournef.) L., by Ivar Tidestrom 17-21 General Notes 23 Critical Remarks on the Long-billed Marsh Wren, by W. E. Clyde Todd. A Race of the Derby Flycatcher from Northwestern Mexico, by A. J. van Rossem 25-26 The Ferruginous Pigmy Owl of Northwestern Mexico and Arizona, by A. J. van Rossem.. 27-28 A New Mountain Sheep from Lower California, by E. A. Goldman 29-32 Additions to the Avifauna of Paraguay, by Pierce Brodkorb 33-34 Studies in American Spiders: The Genus Aigola Chamberlin, by C. R. Crosby 35-42 New Species of Hylid Frogs from Mexico with Comments on the Rare Hyla bistincta Cope, by Edward H. Taylor 43-54 Five New North American Zonitids, by J. P. E. Morrison 55-60 Three New Birds from the Malaysian Subregion, by J. H. Riley.... 61-62 New Races of the Genus Otus from Northwestern Mexico, by Robert T. Moore... 63-68 Revisional Note on the Didine Birds of Reunion, by the Marquess Hachisuka.. 69-71 A New Race of Dactylortyx from Honduras, by H. B. Conover.. 73-74 A New Kangaroo Rat from Southwestern Arizona, by E. A. Goldman 75-76 The Distribution of Flying Squirrels in Western British Columbia with the Description of a New Race, by Ian McTaggart Cowan.. 77-82 A New Subspecies of the Lizard Genus Sceloporus from Texas, by HobartM. Smith™ 83-86 Preliminary List of the Butterflies of Virginia, by Austin H. Clark and Leila F. Clark... 87-91 New Plants from Oregon, by Morton E. Peck 93-94 v vi Proceedings of the Biological Society of Washington. Four New Birds from Northwestern Mexico, by Robert T. Moore.. 95-102 Two New Owls from Sinaloa, Mexico, by Robert T. Moore 103-106 A New Bat Falcon from Sonora, by A. J. van Rossem and the Marquess Hachisuka 107 The Blue-gray Gnatcatcher of Southern Sonora, by A. J. van Rossem and the Marquess Hachisuka 109-110 A New Ant-like Thrips from Florida, by J. Douglas Hood 111-113 Notes on the Nomenclature of the Trochidae, by Harald A. Render...... 115-116 Descriptions of Two New Passerine Birds from the Western United States, by Harry C. Oberholser 117-119 Some New Species and Varieties of Oregon Plants, by Morton E. Peck... 121-123 A New Snake from Southeastern China, by J. Linsley Gressitt 125-128 New N. A. Leafhoppers Belonging to Parabolocratus and Related Genera, by E. D. Ball 129-132 Two New Pocket Gophers of the Thomomys bottae Group, by E. A. Goldman 133-135 Natural History of Plummers Island, Maryland. VI. Reptiles and Amphibians, by M. K. Brady...... 137-139 A New Neotenic Salamander from Texas, by S. C. Bishop and Margaret R. Wright 141-143 On the Flightless Heron of Rodriguez, by the Marquess Hachisuka 145-149 New Race of Chubbia jamesoni from Colombia, by Robert T. Moore 151-152 Four New Rodents from Monterey County, California, by Jack C. von Bloeker, Jr...... 153-157 The Yellow-green Vireo of Northwestern Mexico, by A. J. van Rossem and the Marquess Hachisuka 159-160 The Tiger-Bittern of Northwestern Mexico, by A. J. van Rossem and the Marquess Hachisuka 161-162 Concerning the Genus Leptobyrsa Stal (Hemiptera), by C. J. Drake and M. E. Poor 163-165 New Species of Mites of the Subfamily Trombiculinae, with a Key to the New World Larvae of the Akamushi Group of the Genus Trombicula, by H. E. Ewing 167-173 Critical Remarks on Crypturellus variegatus and its Allies, by W. E. Clyde Todd 175-178 A New Species of Dryopteris, Subgenus Eudryopteris, from Guatemala, by William R. Maxon and C. V. Morton 179-180 Description of a Race of Perognathus parvus from Arizona, by SethB. Benson 181-182 Two New Swifts of the Genus Chaetura, by W. E. Clyde Todd.... 183-184 The Pigeons of the Columba plumbea Group, by W. E. Clyde Todd 185-190 A New Race of Tinamus major from Brazil, by H. B. Conover.... 191-192 General Notes... 193 A Correction, by Jack C. von Bloeker, Jr. Contents. vii A New Woodpecker of the Genus Piculus from Sonora, by A. J. van Rossem and the Marquess Hachisuka 195-196 A Northern Race of Tityra semifasciata, by A. J. van Rossem and the Marquess Hachisuka 197 A Race of Verreaux's Dove from Sonora, by A. J. van Rossem and the Marquess Hachisuka 199-200 New Races of Myadestes, Spizella, and Turdus from Northwestern Mexico, by Robert T. Moore 201-205 A New Indian Paint-brush from Mount Rainier, by Francis W. Pennell and George Neville Jones 207-209 Extinct Chough from Rodriguez, by the Marquess Hachisuka 211-213 A New Race of Peromyscus maniculatus from British Columbia, by Ian McTaggart Cowan 215-216 A New Race of Yuhina flavicoUis, from the Mountains of North Siam, by H. G. Deignan.... 217-218 Description of a New Chickadee From the Eastern United States, by Harry C. Oberholser 219-220 Four New Mammals from Utah, by E. A. Goldman 221-225 A New Race of the Spotted Tinamou, Nothura maculosa, from the Paraguayan Chaco, by H. B. Conover 227-229 Index 231-239 The Committee on Publications declares that each paper of this volume was distributed on the date indicated on its initial page. The contents, minutes of meetings, and index for 1937 (pp. v-xiii; 231-239) were issued on February 18, 1938. The title page and lists of officers and committees for 1937-1938 (pp. i-iv) were issued on June 22, 1937. PLATES. Plate I, facing page 40. Aigola crassimana Aigola filicata Aigola flava Aigola flavescens Aigola rectangulata Aigola recurvata Aigola rotunda Plate II, facing page 52. Hyla erythromma Hyla pinorum Hyla robertmertensi Plate III, back of Plate II. Hyla bistincta Plate IV, facing page 60. Gastrodonta saludensis Paravitrea reesei Retinella columna Retinella floridana Retinella virginica Vol.