70. LAWEENCIA. 233 



Above greyish, more or less suffused with olive ; wing-bauds and 

 external margins of outer secondaries whitish and usually well 

 shown ; tail dark grey, with the whole outer web of the external 

 rectrix distinctly pale dirty white : beneath pale greyish, darker ou 

 the breast and more or less suffused with fulvous ; upper mandible 

 dark, lower light ; feet blackish : whole length 55 inches, wing 2-8, 

 tail 2'5. Female similar. 



Hah. California, Arizona, and Mexico. 



The more or less clearly defined white outer web of the external 

 rectrix serves to identify this rather variable species. The type of 

 Mr. Lawrence's E. fulvvpectus agrees so nearly with some of my 

 Mexican skins from La Parada, that I do not venture to keep them 

 apart. 



a. cj ad. sk. West Humboldt Mts., U. S. A. Salvin-Godman Coll. 



(Ridgivay). 



b. c? ad. sk. Fort Bridger, Utah, U. S. A. Salvin-Godnian Coll. 



(Dre.vle?'). 



c. Ad. sk. Fort Yuma, Cal. (Mollhausen). Sclater Coll. 



d. Ad. sk. San Jose, California (Xantus). Sclater Coll. 



e. Ad. sk. Saticoy, California (J. G. C). Salvin-Godman Coll. 

 f,ff- J 2 ad. sk. Ciudad, Durango, Mexico (For- Salvin-Godman Coll. 



re?-), 



h. Ad. sk. Mexico. J. Gould, Esq. 



i. d ad. sk. La Parada, Mexico (Salle). Purchased. 



J. Ad. sk. La Parada (Salle). Sclater Coll. 



k-m. $ ad. sk. La Parada (Boueard). Sclater Coll. 



n. S ad. ; o. Villa de Elta, Mexico (Bou- Sclater Coll. 



Ad. sk. card), 



p. Ad. sk. Mexico. Sclater Coll. 



q, r. Jr. sk. Mexico. Sclater Coll. 



s. Ad. sk. Mexico (?). Salvin-Godman Coll. 



70. LAWRENCIA. 



Type. 



Lawrencia, Ridgiv. Auk, 1886, p. 382 L. nana. 



" Wings very much rounded ; the first quill shortest, the second 

 not longer than the secondaries ; fifth and sixth longest ; tarsus 

 long ; bill small, much depressed, triangular ; rictal bristles strong ; 

 tail nearly as long as the wing, slightly rounded." (Ridgway.) 



This monotype, from S. Domingo, is said by Mr. Eidgway to be 

 exceedingly different in structure from Empidonace. 



1. Lawrencia nana. 



Empidonax nanus, Laior. Ibis, 1 875, p. 380 ; Cory, Birds of Haiti and 



S. Domingo, p. 82 (1885). 

 Lawrencia nana, Ridgw. Auk, 1886, p. 383 ; id. Ibis, 1886, p. 461. 



Above olive, browner on rcmiges and rectrices, greyer on head ; 

 wing-coverts with two whitish bands ; lower parts whitish tinged 

 with sulphur-yellow. Length 4-4 inches. (Ridgway.) 



Hub. S. Domingo. 



