l''ALC(JXIl)/E — TIJS l''AU;o\S. 285 



little less pure wliite licni'alh, thi' lower |)art,s lieiiig very apiirfcialily tiiiifed with ruloiis 

 ))ostL'ri(iily. 



IIaii. Plains of the rnitcd .Stalo, liom Minnesota to Texas (Devil's Kiver, .M. S. J.). 



Viir. Iiicniiniiii!4( Uinn^VAT. 

 8T, LUCAS R£D TAIL. 



'•Bull!) hnrmUn var. Iiirnsnnii.i, liiiKiWAV," Coi'ks, Kky, 1872, 21ti (iimlcf //. hnmilis). 



f--\ CiiAlt. Aihill. (ieneral appeanuiee ol' llie uminal pluiua^e of var. aihinis, Imt ijie 

 upper imrts more luiilonnly blaekisli, and the upper tail-eoverts and tail nnilonii rulons. 

 the latter without a trace of a blaek har. Heiiealh nearly uniform reddish oeliraceous, or 

 lijrht rufous, the usual aliilominal bell merely indieateil by a lew ineoiispieuous spols; no 

 trace of transverse bars on tiie lower parts /■'"„/,(/,•? (\J,,. u;,!)2."), ("api. Si. Lucas. Sept. 

 lo, 18')!); J. Xautusj. Winj.', lO.iH); tail, !)..">(); tarsu.s, .'i.OO: middle tiie. I.IJO. Wini;- 

 fornnda '>, 4, 3, 2 - (i - 7 - S - !), 1 , 1 (t. 



YdHiiij. Not distin,!,'uishable, by positive eharactor.s, from that of var. cidurus. 



Had. Peninsula of Lower California. 



All adult specimens from tlic iieiiinsula of Lower C'liliforiiia a,i,'ivo with 

 that described aliove, in the ]iectiliar fciitnres which I consider its characttM- 

 izine; a well-niarked local race. The jarseiit i'orni is most nearly related, in 

 its adult dress, to tiie var. kridcri of the i)lains, in its unbarred tail and ini- 

 macidate lower plumaoe, but ditl'ers from this in iniving the upjier ]iarts 

 nearly black instead of alnuist white, the tijjper tail-eoverts deep riilbus, like 

 the tail, instetid of white, and the lower ])arts rufous in.stead of wliite ; in 

 the rufous lower pluma<fe and very diirk upper parts, it closely re.sendiles 

 var. cosiaricensin^ of Central America and Southern Mexico, but the latter has 



1 Biitco horcalis, var. costaricensh, Riikjwav. Jliifm borcalh (all citations fioni Central 

 Amorioa). 



Sp. Ciiak. Arfvf/ (No. 30,400, Costa Rica ; Dr. A. von Frantzius\. l|ca,l, neck, and upper 

 parts continuous, iinvariegatod brownish-black ; whole throat white, with a few cnncatc spots 

 of l)lac;k ; black of the neck nicctinf,' narrowly across the juuuhini ; pectoral area innnaculat<' pure 

 white ; upjier ]iart of abdomen with an inipert'cct belt of distinct narrow lanceolate strips dI' black ; 

 whole posterior lower jiarts fine |)inkish ochraccous, unvariegatcd ; tibiae deepest, incliiniig to 

 delicati^ ochracoous-rufous ; njiper tail-coverts ininiaculate rufous. Tail as in var. hnindis. Wing, 

 Ki.OO ; tail, 9.00 ; tarsus, 3,20 ; middle toe, 1.80. Bill vtry high, abruptly (uuvcd. Wing- 

 formula, 4, .1, 3, 6, 2 ; tirst, sliortest. 



This very cuiious variety is that which depaits furthest from the true Imirnlh ; not only the 

 details, but in a measure the pattern, of coloration, being greatly modified. The pcilcctly con- 

 tinuous pure browinsh-black of the whole head and neck, .sharply contrasted with the white throat - 

 patch, arc features which distinguish it from every other variety of this grou]i ; while the ilccp 

 nifous tibire, and almost utter absence of transverse bais l)eneatli, are also very distinctive char- 

 acters. 



The second of the two Costa Rican specimens before me (No. 33,.')07 ; .1. Carnii(d) dilfers from 

 the typo in having the white of the pectoral area clouded l)y av encroachment of the blacki.sh of 

 the neck ; and across the abdomen is a deep wa.sh of the same. The tail-feathers exhibit indica- 

 tions of spots along the shafts, as in var. cnhirii.s; wliile the upper tail-coveris have a very few 

 bars of blackish. 



Younij (37,338, Trcs Marias Islands, .January ; Col. A. .F. Grayson). Similar to the adult 



