396 BIRDS OF BRITISH GUIANA. 



inaroins : shafts of tail-feathers dark and conirastiiio- with the rest 

 of the tail ; fore-neck and breast bright pale yellow; abdomen white 

 with a tinge of pale grey on the flanks ; sides of body yellow ; 

 thighs and under tail-coverts j)ale lemon-yellow ; axillaries, under 

 wing-coverts, and inner margins of quills below bright sul])hur- 

 yellow ; remainder of quill-lining hair-brown. 



Total length 107 mm., exposed culmen 11, wing 53, tail 45, 

 tarsus 18. 



Adult female. Similar to the adult male. Wing 43 mm., tail 42. 



The type described is in the Mc( 'onnell collection and was 

 collected on the Abary River, July I'.HJG, and the female on the 

 Bonasika River, 1911. 



Breedinri-seanon. Unknown in British Guiana. 



Nest. Unrecorded in I>ritish Guiana. 



J'^g(js. Undescribed from British Guiana. 



Range in British Gxiana. kiujjenaani River, Bartica, Bonasika 

 River, Abary River (^McConnell collection) ; Annai, Quonga 

 ( Whitebj). 



E.dralimital Range. Surinam {Penard). 



Habits. Unrecorded in British Guiana. 



507. Pachysylvia muscicapina. 

 Guiana Wood-bird. 



Hylophihis nwscicapinus Sclater ct Salvin, Xoraencl. Av. Neotrop. 



p. 156, 1873 (Oyapoc, Cayenne) ; Gadow, Cat. B. Brit. Mus. viii. 



p. 308, 1883 (Bartica Grove) ; Salvin, Ibis, 1885, p. 204 (Bartica 



Grove). 

 ? Pachysylvia ferrv.qineifrons Beebe, Our Search for a Wilderness, 



p. 322, 1910 (Aremu River). 

 Pacliysylvia muscicapina Brabourne & Chubb, B. S. Amer. i. p. 349, 



no. 3574, 1912 ; Beebe, Tropical Wild Life in British Guiana, 



p. 136, 1917 (Bartica Grove). 



Adult. Back, w'ings, and tail yellowi?-h green; inner webs of 

 flight-(juills hair-brown with whitish margins; crown of head and 

 nape dark ash-grey ; base of forehead, sides of face, throat, and 

 fore-neck pale fawn-colour ; lower breast and sides of body pale 

 ash-grey, inclining to white on the middle of the abdomen ; under 

 tail-coverts, axillaries, and under wing-coverts lemon-yellow; 

 untler surface of flight-quills hair-brown with pale edgings ; 

 lower aspect of tail dull yellow. 



