^ -8 8 1 R'"(^WAY, Nexv Ge7tera atid Species of American Birds. 2 2^ 



hidden bj laterofrontal feathers. Coloration : Head and neck gray with 

 two broad stripes of chestnut on pileum and a narrow postocular stripe 

 of the same ; back grayish brown streaked with black ; lesser wing-coverts 

 dark chestnut; edge of wing yellow; under parts mostly white. 



Genus Pselliophorus.^ (Type, Tachyphonus tibialis Lawrence.) 



Related to Bnarrenton Bonaparte, but mandibular tomium without dis- 

 tinct subbasal tooth, feathers of forehead and lores stiff and erect, webs 

 of rectrices semi-decomposed terminally, and feathers of tibia; developed 

 into a conspicuous tuft entirel}' concealing the tibio-tarsal joint. 



Genus Lysurus. (Type, Buarremo7i crassirostris Cassin.) 



Similar to Arrcmon Vieillot, but nostril broader, more rounded, with 

 superior operculum much less developed; wing much more rounded 

 (first primary very much shorter than secondaries, the second about 

 equal to secondaries or but little longer) ; tail more rounded, almost 

 graduated, with the rectrices broad, though pointed at the tips, the webs 

 semi-decomposed terminally; middle toe relatively longer, the lateral 

 claw falling much short of base of middle claw. (Includes also Bnarre- 

 nton casianeiceps Sclater.) 



Genus Serinopsis. (Type, Fringilla arvensis Kittlitz.) 



Resembling Sicalis Boie, but bill relatively shorter and deeper at base, 

 more compressed terminally, with straighter outlines and more distinctly 

 ridged culmen ; wing much longer and more pointed and claws relatively 

 longer and more slender. 



Genus Heterospingus. (Type, Tachyphonus ?-Hbrifrons 

 Lawrence.) 



Similar to Tachyphoims Vieillot, but nasal fosste densely feathered, 

 concealing the nostrils; tail relatively much shorter, wing more pointed, 

 tarsus shorter (scarcely exceeding middle toe with claw), and sexes alike 

 in color or nearly so in pattern of coloration. 



Genus Mitrospingus. (Type, Tachyphonus cassini Lawrence.) 



Related to Eucometis Sclater, but bill much longer (nearly as long as 

 head), nostrils very different, wing more rounded, tarsus relatively 

 longer, claws stronger, occipital feathers very short (instead of the 

 reverse), and style of coloration very different. 



^ From ^€\\io<)>6pos ', ^tWiov = arniilla. 



