406 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Voir. 



[Genus OENITHION Hartl. 



Ornithion, Haetl., J. f. O. 1853, p. 35. (Type 0. inerme, Hartl., ibid., sp.n.) 

 Camvtostoma, SCL., P. Z. S. 1857, p. 203. (Type C. imherie, Scl., ibid., sp. n.) 

 Myiojpatis, Cab. & Heine, M. H. ii, 1859, p. 58. (Type Muscipeta incanescens, Maxim., 

 Beit, iii, p. 898.) 



In Ms "Note on the Genus OrnitMon of Hartlaub," in P. Z. S. 1873, pp. 576-578, 

 Dr. Sclater concludes that the species upon which the three generic names above cited 

 ■were respectively established may be "naturally located in the same genus, which is 

 remarkable amongst the Tyrannidss for its small short compressed bill, without any 

 trace of rictal bristles." At the same time. Dr. Sclater distinguishes four species of 

 the genus — inerme, pusillum, incanescens, and obsoletum — the two former being yellow- 

 bellied, the other two having the under parts whitish. 



With resiJect to the O. incanescens of his paper, however, it has later appeared that 

 the author was in error in uniting his Camptostoma imberbe of Mexico Avith the Bra- 

 zilian form earlier described by Maximilian. (See Lawr., Ibis, 1876, p. 497.) 



The acquisition of a specimen of 0. imberbe from Texas is one of the most interest- 

 ing of Mr. Seunett's results, as this discovery carries the range of the genus much 

 farther north than it was before sui^posed to extend. — E. C] 



80. Ornithion imberbe (Scl.). — Beardless Flycatcher. 



ICamptostoma imberbe, ScL., P. Z. S. 1857, p. 203, 2 figs. (S. Andreas Tuxtla, S. 



Mexico ; A. Salle).— Sci.., Ibis, 1859, p. 444, pi. 14, f. 1.— SCL., Cat. A. B. 



1862, p. 215.— Lawe., Mem. Bost. Soc. vol. ii, pt. iii, No. ii, 1874, p. 286 (Ma- 



zatlan, San Bias; A.J. Grayson). 

 Elainia (Camptostoma) imberbe. Gray, Hand-1. pt. i, 1869, 356, No. 5406. 

 " Ornithion incanescens," Scl., P. Z. S. 1873, -p. 577 (in part; confounded with 



0. incanescens of Brazil). 

 " Ornithion incanescens (Max.); Camptostoma imberbe (Scl.)," Lawr., Bull. U. S. 



Nat. Mus. No. 4, 1876, p. 28 (Tehuantepec, Sta. Efigenia; F. E. Sumiclirast). 

 " Ornithion incanescens," Coues, The Country of July 13, 1878, p. 184 (Rio 



Grande of Texas; G. B. Sennett. First introduced to U. S. fauna). 

 Hab. — Southern and Western Mexico to the Rio Grande of Texas (iSaZZe, Sumichrast, 

 Sennett). — E. C] 



Sp. Ch. — Upper parts and sides of head grayish-ash, tinged faintly with olive, 

 more conspicuously on rump ; crown-feathers tipped with light brown ; wings and tail 

 brown, edged with hoary white ; secondaries and coverts broadly tipped and edged 

 with fulvous-white, the latter forming two broad wing-bars ; edge of wing and under 

 wing-coverts light lemon-yellow; under parts ash, light on neck and chin, and very 

 light on belly; a dark band on jugulum and breast; a light lemon tinge from neck 

 down, and same very conspicuous on belly and under tail-coverts ; tail double-rounded ; 

 3d quill longesu ; 1st quill .20 from point of wing ; point of wing formed of 2d, 3d, 

 4th, and 5th quills, which are very nearly equal; 6th and 7th quills longer than 1st; 

 8th equal Isl ; secondaries .30 from point in closed wing ; under wings and tail light; 

 under shafts of rectrices white ; bill unnotched ; upper mandible much curved, brown ; 

 under mandible straight, pinkish-yellow, brown at tip ; commissure yellowish ; feet 

 black. — Length 4.50; extent 7.25; wing 2.12; tail 1.85; bill .28; tarsus .57 ; whole foot 

 1.00. Iris brown. 



I have little to say of the habits of this species. My single specimen 

 was shot on April 24 in a low bush distant fi?om woods. No others 

 were observed. It was an adult male in fine plumage, and its testes 

 showed the breeding season to be close at hand. Its diminutive size and 



