Jan., 1920 A NEW OTOCORTS FROM CALIFORNIA 35 
smaller bill, and in the male has the nape darker, more cinnamomeous, the other upper 
parts more ochraceous, less grayish, and somewhat darker, as well as the yellow of the 
lower parts of a more buffy shade. The female, too, has the upper parts darker, more 
ochraceous tawny, and the yellow below more buffy than the same sex of Otocoris al- 
pestris strigata. In fact, this Sierra Nevada race looks really most like Otocoris alpes- 
tris strigata, from the breeding range of which, however, Otocoris alpestris merrilli 
completely isolates it in northern California and southern Oregon. Since Otocoris al- 
pestris sierrae and Otocoris alpestris strigata are so much alike, some California win- 
ter individuals of the former have doubtless passed as the latter, but specimens record- 
ed by the writer from Red Bluff and San Francisco, California (Proc. U. S. Nat. Mus., 
xxIv, June 9, 1902, p. 839), aretrue Otocoris alpestris strigata. There is in this new race 
the individual variation usual in the forms of Otocoris alpestris. Three breeding speci- 
mens from Milton, California, are intermediate between Otocoris alpestris actia and the 
present form, but though larger than the former and with a somewhat darker, more cin- 
namomeous nape, they are almost the same in color above and have no yellow on the 
posterior lower parts; so that they are, without much doubt, referable to Otocoris alpes- 
tris actia. 
The present new race apparently does not breed in the Sacramento Valley, al- 
though it occurs there with seeming regularity in winter. 
Detailed measurements of the specimens of Otocoris alpestris sierrae examined 
are given below. : 
MEASUREMENTS OF SPECIMENS OF OTOCORIS ALPESTRIS SIERRAE, 
ALL FROM CALIFORNIA 
% = Dn e. 
Museum and No. iSex Locality Date Collector a) SY| 3 lBO 
& la/ ek] @ lose 
2 la|mel a lees 
U.S.N.M.203534|— Head of Pine Creek, | June 13,)A. S. Bunnell [100 (67/11 |21 [11.8 
Lassen Co. ! 1906 
Pes NeW 203533|=—- 6 Head of Pine Creek, | June 13,/A. S. Bunnell | 96 (65/11 |21.8/11 
i Lassen Co. 1906 
U.S.N.M.203532)- @ Head of Pine Creek, | June 13,)A. S. Bunnell |101.5)71|10.8/20 |12.2 
Lassen Co. 1906 
U.S.N.M.166666}— 4 Donner July 8, |W. K. Fisher | 94.5/65)12.2/21 11.8 
1900 
U-S.N.M. 163961) — 4 Bald Mt., Shasta Co. | Sept. 11,);W. H. Osgoodj101 (66/12 [22 [11.5 
1898 
U.S.N.M. 80477) @ Yuba Co. Feb. ..,/L. Belding 101 (69/10.9/20.8|11 
1877 
U.S.N.M. 124408} 2% | Gridley Jan. 25, |L. Belding 103.5|72111_ |22.5]12.2 
1891 
J.E. Thayer 4231 & Enterprise, Butte Co.| Feb, 5, |G. F. Bren- [105 |71/10 [21 [11.8 
1897 ninger 
U.S.N.M.163962)> [92 ] Bald Mt., Shasta Co. | Sept. 11,)W. H. Osgood] 95 |68/i1 |21 [11.2 
1898 
U.S.N.M. 106999)‘ 2’? [2 ]} Summit Aug. 16,|L. Belding 89 |../10 (20 [11.2 
1885 
U.S.N.M. 98419) - @ Red Bluff Dec. 19,/C. H. Town- | 94 (64) 9.5/20 [11.5 
1883 send 
1 Type. 
Washington, D. C., September 26, 1919. 
