May, 1921] A Revision of Dendroica 243 



Dendroica auduboni memorabilis, subsp. nov. 



Chars. Subsp. — Similar to Dendroica auduboni auduboni, but 

 larger; male with breast and jugulum nearly always more solidly and 

 extensively black; and sides of head also witli more of blackish. 



Description. — Type, adult male; No. 137415, U. S. National 

 Museum, Biological Survey Collection; Ward, Colorado, June 12, 1893; 

 J. A. Loring. Upper parts between neutral gray and slate gray, the 

 forehead and sides of crown thickly, the cervix sparinglv, the inter- 

 scapulum broadly, streaked with black; upper tail-coverts black, edged 

 with the gray of the back; center of crown gamboge yellow; rump 

 lemon chrome;. tail brownish black, narrowly margined exteriorly with 

 gray like that of the back or with whitish; wings rather light chaetura 

 black, the tips of the quills dark fuscous, the secondaries edged and 

 tipped with mouse gray, the primaries with pale gray or whitish; 

 superior wing-coverts black, the median series broadly tipped, the 

 greater series broadly tipped and margined externally with white, the 

 lesser coverts margined and tipped with the gray of the back; sides of 

 head and of neck gray like the back, the latter, together with the auricu- 

 lars, flecked with black; a spot in front of the eye and of the suborbital 

 region black ; upper and lower eyelids white ; throat and chin, gamboge 

 yellow; jugukmi and sides of breast, black, a little flecked laterally with 

 the gray of the back; a spot on each side of the breast lemon chrome; 

 remainder of lower parts white, the sides and flanks broadly streaked 

 with black; lining of wing white, the under wing-coverts mottled with 

 brownish black. 



Measurements. — Maler^ wing, 77.3-83.5 (average, 80.5) mm.; 

 tail, G0-G6.S ((33); exposed culmen, 9.5-11 (10.3); tarsus, 18-21 (19.0); 

 middle toe with claw, 10.3-13.2 (11.9). 



Female:^ wing, 72-78 (average, 74.5) mm.; tail, 55-61 (58.1); 

 exposed culmen, 9.5-11 (10.1); tarsus, 18-20 (19.2); middle toe with 

 claw, 11-12.2 (11.7). 



Type Locality. — Ward, Boulder County, Colorado. 



Geographic Distribution. — Central southern Canada, 

 western United States, Mexico, and Guatemala. Breeds 

 north to southwestern Saskatchewan and central Alberta; west 

 to eastern Washington, eastern Oregon, central Nevada, and 

 southeastern California; south to southeastern California, 

 central Arizona, southeastern Arizona, and central western 

 Texas; and east to central western Texas, central New Mexico, 

 central Colorado, northwestern Nebraska, eastern Wyoming, 

 western South Dakota, and central Montana. Winters north 

 to southern California, southern New Mexico, and south 



1 Fifteen specimens, from Arizona, New Mexico, Colorado, and Montana. 



2 Twelve specimens, from Arizona, New Mexico, Colorado, and Wyoming. 



