312 NORTH AMERICAN BIRDS. 



TyrnnnidcB in the structure of the bill, etc., and in the habit of capturing 

 insects more or less on the winj,', though they are more restless in their 

 movements, seeking their jM-ey among ti(;es or in bushes, rapidly changing 

 their place, instuad of occupying a perch and returning to it after pursuing 

 an insect through the air. The yellow or orange crown found in many spe- 

 cies also can-ies out the analogy ; but the sti'ctly Oschie characters of the 

 tarsal scutelliu and the nine primaries will serve to distinguish them. 



The Settqjhaghm have their greatest development in Middle and South 

 America, no less than nine genera and subgenera being on record, of which 

 only two extend into the United States. Of one of these, Sctojjhaf/n, we 

 have only a single species of the many described ; the other, Mijiodiodes, 

 has no members other than those found in the United States. 



The following diagnosis is prepared to distinguish our genera from the 

 South American : — 



A. "Wings pointed , the fir.st quill lonjrer than the fifth; the third as long a.s or 

 longer than the fourth. Tail nearly even, or slightly rounded (the difl'ercnce of the 

 leathers less than .20) ; the feathers broad and firm ; the outer webs of e.xterior 

 leathers narrow at base, but widening to nearly double the width near the end. 



1. Bill from gape nearly as long as .skull, broad at base and much depressed; 

 rictal bristles reaching half-way from nostrils to tip. Culmen and commi.s- 

 sne nearly straight. Wings equal to the tail. Tarsi long; toes short; mid- 

 dle too without claw, about half the tarsus Setophw/a. 



2. Bill from gape nearly as long as skull, broad at base, but deep and more 

 sylvicoline ; rictal bristles reaching but little beyond nostrils. Culmen and 

 conunissure straight to the tip. Wings longer than the almost even tail. 

 Middle toe without claw, three; fifths the tarsus .... Mijiodioclvs. 

 ',). Bill from gape much shorter than head, wide at base, but compressed 



and high ; the culmen and commissure much curved from base, scarcely 



notchei; at tiii; rictaj bristles ri inching nearly Ualf-way from n(*»rils rfp tip. ♦ 



Wings about equal to the almost even tail. Middle toe without (.'law, about 



three fifths the rather short tarsus CanlelUna. 



B. Wings rounded ; the first (|uill shortci- than in the preceding section ; alwa3-s 

 less than the fifth. South American genera." 



Se\eral species of ScfojiJuif/iiw have, on not very well established grounds, 

 been assigned to the southern borders of the United States. They are as 

 i'ellows : — 



CardelUna rubra, B.uiin, Rev. Am. Birds, ISfi'). 204. (Sefophaga rxhrn, Pwainsox.) 

 PiiiKx kiicfifi.i, (iiRAVU, Birds Texas. Ilnb. Mexico. Rich carmine-red. Wing and 

 tail-feathers brown. Ear-coverts silvery white. Length, 4.70 ; wing, 2.40; tail, 2.55. 



Basileuterus culicivoruB, Baihd, Rev. Am. Birds, 180.5, 24G. (Sylria culicivora, 

 LicuT.) J/H.sr(V((^w ft/wsiV,/, flntAtM), Texas Birds. ITah. Southern Mexico ; Guatemala 

 and Costa Rica. Top of head with two black stripes enclosing a median of yellow. 

 Back olivaceous- asli. Beneath entirely yellow. No rufous on side of head. Length, 

 4.00; wing, 2.40; tail, 2.25. 



> Genera Jhiiohnniii, Eidlili/pis, Myiolhli/pis, Basileuterus, Idiutes, and Ergaticus. All Middle 

 and South Amoriea. 



