FAMILY MUSCICAPID^. 283 



( Tarsus booted, adult with red throat, young spotted . . Erithacus 



9 j Tarsus in front with large scutes, never red on throat, 



*- adult and young without spots Herbivocula 



f Outer rectrices chestnut-red at base, or brownish-chestnut 



2Q-[ throughout Luscinia 



Outer rectrices without chestnut or brownish-chestnut 11 



( Tail rounded or graduated 12 



square 14 



lU Tail 



t First primary much longer than primarj'-coverts . . Lusciniola 



" \. First primary shorter or not longer than primary-coverts 1 3 



f Rictal bristles obvious Acrocephalus 



I Rictal bristles obsolete Locitstella 



f Rictal bristles obvious 15 



14{ 



*■ Rictal bristles obsolete Sylvia 



f Tarsus generally weaker and under 20 mm. . . . Miiscicapa 



^^ Tarsus stronger and over 20 mm. . . . .16 



f Upper tail-coverts conspicuously white .... (Enanthe 



^ Upper tail-coverts not white Saxicola 



Genus MUSCICAPA Biiss. 



MusciCAPA Brisson, Orn., I., p. 32 (17G0 — Type by tautonymy : 

 " Muscicapa," i.e., M. striata ; c/. Orn., II., p. 357). 



Bill wide at base, wider than half the length of the exposed 

 culmen. Rictal bristles conspicnous. Plumage soft and full. 

 1st primary in all British species longer than primary -co verts but 

 considerably shorter than half the length of the 2nd, 3rd and 4tli 

 longest. Tail square or slightly eraarginated, rectrices 12. Feet 

 weak, tarsus short. Sexes alike or different, young in first plumage 

 spotted. Numerous species in all parts of Old World, but genus 

 very differently limited, even British species sometimes divided into 

 three or four genera, e.g., " Butalis " {=Muscic<ij>a s.s.), Hedymela 

 or Ficedula (for hypolenca), Alseoyiax (for latirostris), Sijyhia 



Key to species of genus Muscicapa. 



( Uppsr-parts spotted with buff . . Juveniles of all species 



'- Upper-parts not spotted with buff 2 



f Crown with blackish spots . . . il/. sfna/a, ad. and juv , p. 284 



~ ^ Crown luiiform, unspotted . . 3 



( Crown black, white patch on forehead 4 

 I Crown brown or brownish-grev . 5 



