738 



BULLETIN 50, UNITED STATP:S NATIONAL MUSEUM. 



EUTHLYPIS LACHRYMOSA TEPHRA Ridgway.' 

 WESTERN FAN TAILED WARBLER. 



Similar to K. I. hwlininiosa^ hut sides of head much lighter slate- 

 gray, the lores and anterior portion of su})orhital and malar regions 

 never blackish: upper ])arts lighter slate coloi-, the back, etc., nuich 

 more strongly tinged with olive; white supraloral spot averaging 

 larger; wing and tail averaging shorter. 



Adult maJ,'.^\j(t\\gih (skins), 131»-1()() (144.i>); wing, 69-75 (73.1); 

 tail, 65-71 (67.9); exposed culmen, 12-13 (12.4): tarsus, 23-24 (23.1); 

 middle toe, 13.5-14 (13.6)."' 



A< I > lit female. — Length (skins), 142; wnng, 68; tail, 66.5; expo.sed 

 culmen, 12.5; tarsus, 23; middle-toe, 13.'' 



Western Mexico, in States of Chihuahua (Hacienda de San Rafael), 

 Sinaloa (Sierra Madre, near Mazatlan), and Jalisi'o (Barranca Ibarra; 

 San Sel)astian). 



Eulhhjji'ix Idclu'i/mosa (not of C'abani.s) Lawrence, Mem. Bo.st.. Soc. N. H., ii, 

 1874, 270 (Mazatlan, Sinaloa; habits).— Jouy, Proc. U. B. Nat. Mns., xvi, 

 189:^, 777 (Barranca Ibarra, Jali.si'o; habits). 



Setopluuja litchri/uiona S.vlvin, Il)i8, 1878, .320, part (.Mazatlan). — Salvin and 

 GoDMAN, Biol. Centr.-Ani., Avt's, i, ISSl, 184, part (Mazatlan). 



Genus BASILEUTERUS Cabanis. 



Bmilentenoi^ Cabanis, in Wie^rinann's Archiv. fiir Naturg., iii, pt. i, 1847, Slf). 



(Type, Siflrid, rcrmirora Vieillot, =<SV/o/*/(ffr/(( (uiroritpilla Swainson. ) 

 Itfiotrx Baikd, Review Am. Birds, AjjHI, 18(i5, 2.S7, 247. (Type, Siiophni/n riifi- 



fniin^ Swainson. ) 



Similar to WiJxonhi., but wing relatively shorter and much more 

 rounded (ninth primary shorter than fourth instead of longer than 

 tifth), wing-tip shorter (less than half as long as tarsus instead of nuich 

 more), bill relatively longer, stouter, and less compressed terminall}', 

 and pileum three-striped (two lateral 1)lack stripes inclosing one of 

 chestnut, rufous, buti'y, or grayish) or wholly rufous, or else the 



iType, no. 151906, coll. U. S. Nat. Mus., Hacienda de San Rafael, Chihuahua, 

 May 10, 1888; M. Abbott Frazar; received from William Brewster. 

 '■^ Eight specimens. 

 ^ One specimen. 

 Adult males from different localities average, respectively, as follows: 



Locality. 



Two adult males from Chihuahua (Hacienda Smii Rafael).. 



Two adult males from Sinaloa (Mazatlan) 



Four adult males from Jalisco ( Barranca Ibarra and San 

 Sebastian) 



Middle 

 toe. 



13.7 

 13..') 



13.7 



■* " fJadiAevrffjos von (iaoiXEVi Jleiju/nn 



