38 NORTH AMERICAN BIRDS. 



A. Crown plain rufous ; interscapulars without distinct black contres, and 

 tertinls without whitish border. JJIackish " bridle " conspicuous. Ucud of 

 wing fdpjcd with white. 



1. P. ruficeps. 



Above olivaceous-nsh, interscapulars with liroad streaks of dull 

 rufous, the shafts scarcely blackish. Crown bright rufous. \Vi"g, 

 2.40; tail, 2.70; bill, .21) from forehead, .20 deep; tarsus, .70; 

 middle toe without claw, .")"), Ilah. Calilbrnia (and Mexico in 



winter?) var. ruficeps. 



Darker, above brownish-iilumbeous, dorsal streaks scarcely rufous, 



anil with distinctly black shaft-streaks ; crown darker rufous. 



Wing, 2.40 ; tail, 2.fi0 ; l)ill, .34 and .2o ; tarsus, .77 ; middle tO(?, 



.57. Hah. Mexico (Orizaba; Oa.xac.a), in summer . var. hoiicardi} 



B« Crown streaked ; interscapulars with distinct black centres ; tertials 



sharply bordered terininally witli paler. "Bridle" obsolete; bend of wing 



edged with yellowish. 



2. P. eestivEiliB. Above unilbrmly marked with broad streaks or lon- 

 gitudinal blotches of deep rufous; ))Iack streaks confuicd to interscapu- 

 lars and ciown. Tail-feathers without darker shaft-stripe, and without 

 indications of darker bars ; the outer feathers without distinct white. 

 Black marks on upper tail-coverts inconspicuous, longitudinal. 



The bluish-ash, and chestnut-rufous streaks above sharply con- 

 trasted ; black dorsal streaks broad. Wing, 2.45; tail, 2.05 ; bill, 

 .30 and .30 ; tarsus, .73 ; middle toe, .GO, Ilah. Southi;rn States 

 from Florida and Georgia to Southern Illinois . . \i\v. amtiv alt k. 



The dull ash and light rufous streaks above not sharply defined ; 

 black dorsal stre.iks narrow. Wing, 2.05; tail, 3.00; bill, .32 an<l 

 .25 ; tarsus, .80 ; middle toe, .03. Hah. Southern border of the 

 Arizona region of Middle Province of United States . .var. arizonw. 



Markings badly defined as in the last, but the rufous streaks 

 darker (in summer plumage almost entirely lalack), with more black 

 on the crown. Wing, 2.55 ; tail, 2.05 ; bill, .32 and .25 ; tarsus, 

 .80; middle toe, .CO. Hah. Mexico (Orizaba ; Mirador, Colima). 



var. h otter ii .'■' 



3. P. cassini. Above marked evcT-ywhere with broad short streaks of 

 pale (not reddish) brown streaks, all black medially. Tail-feathers with 



• Zcmotrichia boucardi, Sci.ArEit, 1*. Z. .S. 1867, 1, J)l. i, La Puebia, Mex. (scarcely dcfuiablc 

 as distinct from riijurps). 



" Pcuctca botkrii, .Sci.ArEi!, Cut. Am. 15. 1862, 116 (Zomtrichia b. V. Z. S. 1857, 214), Ori- 

 zaba. Colurnicubui mcxkaiia. Lawk. Ann. N. Y. Lye. VIII, 1867, 474 (Colima). 



Tliis form (•.in scarcely be defined separately from wstivalia. The type of C. iruxkamis, 

 Lawu., is inidistinguishable from Orizaba speeimens. A specimen in the worn summer plumage 

 (44,752 9 1 Mirador, .Tuly) dilTers in having the streaks above almost wholly blnek, with scarcely 

 any rufous edge ; the crown is almost luiiforndy blackish. The feathers are very much worn, 

 however, and the specimen is without doubt n^l'errible to boUcri. 



The Peiicwa noloslida of Sci.ArKR (P. Z. S. 1868, 322) we have not seen ; it apjiears to differ 

 in some important respects from the forms diagnosed above, and may, jrassihly, be a good species. 

 Its place in our system ai)])ears to be with section " A," but it differs from ruficeps and boucardi 

 in the median stripe on the ci'own, aifd the black streaks in the rufous of the lateral portion, 

 the blacker streaks of the dorsal region, and some other less important points of coloration. The 

 size appears to be larger than in any of the forms given in our synopsis (whig, 2.70 ; tail, 3.00). 

 Hab. States of Puebia and Mexico, Mex. 



