SYLVICOLIDJi — THE WARBLERS. 



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Basileuterus belli, Baird, Rev. Am. Birds, ISGf), 247. Musckapa belli, GmAUD, Texas 

 liinls. /Jail. Mexico ami GiuiteiiKjla. Top of head and face chestnut. A yellow super- 

 ciliary stripe bordered above by dusky. Back olive; beneath yellow. Length, 5.10; 

 win" 2.28 ; tail, 2.50. 



Gento MYIODIOCTES, Aud. 



Myiodiodes, .Audubon, Synopsis, ISSii, 4S. (Type, Motacilla mitrnta, Gm.) — Baikd, Birds 



N. Am. 1858, 291. 

 Wilsmiia, BoN.A.r. List. 18.38 (preoccupied in botany). 

 Myioctmms, Cabanis, Mus. Hein. 1850, 18. (Type, Motacilla mitrata.) 



G-EN. Char. Bill broad, depressed; the lateral outlines a little concave; the bristles 

 reaching not quite half-way from nostrils to tip. 

 Culmen and commissure nearly straight to near the 

 tip. Nostrils oval, with membrane above. Wings 

 pointed, rather longer than the nearly even but 

 slightly rounded tail ; first quill shorter than the 

 fourth, much longer than the fifth ; tlie second and 

 third quills longest. Tarsi rather lengthened, the 

 scutellar divisions rather indistinct; the middle toe 

 without claw, about three fifths the tarsus. 



Myiodioctes mitratiis. 



This genus is distinguished from Setophaga 

 mainly by stouter feet and longer toes ; short- 

 er and more even tail, narrower bill, etc. The species are decidedly mus- 

 cicapine in general appearance, as shown by the depressed bill with bristly 

 rictus. The type M. niitratus is very similar in character of bill to Dcn- 

 droica castanea, but the wings are much shorter ; the tail longer and more 

 graduated ; the legs and hind toe longer, and the first primary shorter than 

 the fourth (.15 of an inch less than the longest), not almost equal to the 

 longest. The species are plain olive or plumbeous above, and yellow be- 

 neath. They may be grouped as follows : — 



A> Tail with white patches on the inner feathers. 



1. M. mitratus. Head and neck black. Front, cheeks, and under parts 

 yellow. Back olive-green. Hub. Eastern Province of United States, south 

 to Panama and West Indies. 



2. M. minutus. Olive above ; yellowish beneath. Two white bands on 

 the wiii'-'^- Huh. Eastern United States. 



B. Tail witliout white patch on the outer feathers. 



3. M. pusillus. Crown black. Forehead, cheeks, and under parts yellow. 

 Back olive. 



Yellow of forehead without an orange tinge ; upper parts dull olive- 

 green ; pileum with very dull steel-ljlue lustre. Hah. Eastern Province 

 and Rockv Mountains of North America, south to Costa Rica. v.ir. pvsillux. 



Yellow of forehead with an orange cast ; upper parts bright yellowish- 

 green ; pileum with a bright steel-blue lustre. Rab. Pacific Province 

 of North America, from Sitka to Costa Rica . . . xar. pileolatn . 



4. M. canadensis. Streaks on the crown, stripes on sides of head and 

 neck, with pectoral collar of streaks, blank. Rest of under parts, aud line 

 to and around the eye, yellow. Back bluish. Rab. Eastern Province of 

 United States, south to Ecuador. 



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