VIREONID.'E — THE VIREOS. 373 



1. L. Bolitarius. Spurious pi-imiry exposed. Throat and orbital ring wliite. 



a. Si)urious primary well developed, — .(10 or more long, .10 broad. 



Nape and side of neck plumbeous; iipper tail-eoverUs olive-green. 

 Crissum tinged with yellow, but none on side of throat, nor aeross 

 breast. Win};, ;?.0.') ; tail, 2.40 ; bill, from nostril, .27 ; tarsus, .C(). Hub. 

 Eastern Province of fniled Stal"s, straggling westward to the I'acilie 

 Coast, esi)eeially in its migration southward into Mexico, where it pene- 

 trates in winter as far as (iuatemala vai: solilari ux. 



Ab-n-o continuous olive-l..,)wn ; below ochraeeous-white, with a butl'y 

 thige across breast, and deeply olivaceous along sides. Crissum tinged 

 with yellow. Wing, 2.80; tail, 2.15 ; bill, 30 ; tarsus, CO. Hab. I'acilie 

 Province of Uiiited States, straggling in aulunui eastward into the 

 Middle Province var. cassiiii. 



Above continuous ashy-plumbeous. Beneath pure white, ashy along 

 sides, and very slightly so across breast. A'ing, ;{.2o ; tail, '.iltO ; bill, 

 .30 ; tarsus, .GO. Hab. Middle Province of United States, co.^th, in win- 

 ter, through Western .Mexico to Colir.ia .... var. ^j^M wtc H .V. 

 6. Spurious primary very minute, — about .30 long by .O-l wide. 



Nape and side of neck olive-preen; upper tail-eovertvS plumbeous. 

 Crissum not tinged with yellow, but sides of the throat ami aeross the 

 breast are. Wing, 3.10 ; tail, 2.20; bill, .20; tarsus, .04. Hab. Coban, 

 Vera Cruz, Guatemala ; resuUnit? \iiv. propimj ii as ' 



2. It. flavifrons. Spurious primary concealeil. Throat and orbital ring yellow. 



Anterior half of body olive-green above, lemon-yt^llow below ; pos- 

 terior hall plumbeous-ash above, while below. Wing, 3.00 ; tail, 1.00 ; 

 bill, .32 ; tarsus, .70. Hah. Eastern Province of Uuited States, south, 

 in winter, to Costa Rica, and very rare in Cuba. 



Lanivireo solitarius, 1>aird. 



BLVE-HEASED VIBEO. 



Muscicapa solitaria, WiLS. Am. Orn. II, 1810, ll;i, pi. xvii, fig. (i. Virto mUtnriH.% Vieill. 

 — Aim. I. — Cassin, Sc. — Sci..vrKii, P. 'A. S. Ks.-,ti, 'JlkStCordnvii) ; 18.'>i), ;i()y(.\iilaprt); 

 375 (Oaxaca?). — Sci.atku & Sai.vin, Ibis, ISliO, 31 ((Jiiati'iiiala). — Caii. .lour. Ill, 

 408 (Cuba). — GuNDLAill, Cab. Jour. 1801, 324 (I'uba ; very rare). -"SAMina.s, Birds 

 N. Eng. 277. Vireo (Laniciiro) sol. IJaiimi, liirds N. .Vui. 18;")8, 32S). Viirosijh-ia 

 (Lanivireo) soUttiria, BAiltl), Itev. Am. 15. 1S04, 347. 



Sp. Cmak. (No. 300 J.) Above olive-green, including upper tail-coverts; the top 

 and sides of head and nape ashj^-pluudn'oiis ; siiles of the neck phunbeous-olive. Broad 

 liue from nostrils to and around eye, involving the whole lower eyelid, white. A loral lino 



' Vifcosylvia propinqnn, Uaiiu), TJi'v. 18()."i, p. 348. This ai)p('ars to be mrrdy a ptMiiiaiient 

 resident race of nolitariua, which itsi'lf visits (iunlcnmla only in winter. Closely ri'siMubling the 

 latter, it dillers essentially in the respects jioinled out above. The ililleienee in <'oloration is 

 jirodueed by a shifting, as it were, toward the head of th(^ yellow and olive, leaving the ujiper 

 tail-coverts clear ash, and the lower pure white, and eneroacliing upon the a.sh anteriorly to thn 

 orown ami ear-eoverts, and the white alongside of the throat. In the V. plnmbcus these tints 

 are simply almost entindy removed, leaving eh'ar ash and pure white, with a tinge, however, of 

 olive on the riunp and of yellow on the sides. In /'. oissiui the tints ari^ darkened and biowued 

 by the peculiar iidhienec of the region whei-c found, there being neither clear ash, nor olivo-groeu, 

 uor pure yellow or white, iu the pluniiigo. 



