158 BIRDS OF BRITISH GUIANA. 



Genus EUSCAETHMUS Wied. 



Huscarthmus Wied, Beitr. Naturg. Bras. iii. p. 45, 1831. Type 

 -B. nidipendulus Wied. 



Fig. 63. — Hvscarthmm nidipendulus. 



The species included in this genus are small birds with pro- 

 portionately long bills, long tails, and long tarsi. The bill is 

 pointed and hooked at the tip o£ the upper mandible, the width at 

 the base is about half the length of the exposed culmen. The 

 wing is almost square, the second and third primaries longest and 

 equal, the first about equal in length to the innermost secondary. 

 The tail is square at the tip and about three-quarters the length 

 of the wing. Coloration : male and female similar. 



453. Euscarthmus russatus. 



RuDDT Tody-Tyeant. 



Euscarthmus russatus Salvin & Godman, Ibis, 1884, p. 445 (Roraima) ; 

 Salvin, Ibis, 1885, p. 292 (Roraima, 5000 to 6000 ft.) ; Sclater, 

 Cat. B. Biit. Mus. xiv. p. 82, pi. ix. fig. 1, 1888 (Roraima) ; Bra- 

 bom-ne & Chubb, B. S. Amer. i. p. 276, no. 2811, 1912. 



Adult. Back, wings, and tail olive-green; upper wing-coverts 

 margined with pale rufous which forms a double wing-bar ; outer 

 aspect of flight-quills yellowish green, the inner webs dark brown 

 with pale edgings ; tail brown with olive-green margins to the 

 feathers and indistinct blackish bars; crown of head and nape 

 blackish brown ; base of forehead, sides of face, throat, and breast 

 pale rufous, becoming much paler and inclining to whitish on 

 the middle of the abdomen ; sides of the body dusky olive-green ; 

 thighs, under tail-coverts, and under wing-coverts pale rufous; 

 ax.illaries lemon-yellow; under surface of quills pale brown with 

 paler inner margins ; lower aspect of tail also pale brown. 



