ATTICORA. — STELGIDOPTERYX, 



340 



The specimen from which the description is taken was collected 

 bj Mr. McConnell at Mount Roraima during his expedition in 

 October 1898. 



Adult male. Similar to the adult female. Wing 93 mm. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Mount lioraima (McConnell col- 

 lection) ; Mount Roraima ( Whiteli/). 



E,rtralimital Range. Venezuela, Brazil, Argentina. 



Habits. Unrecorded in British Guiana. 



Genus STELGIDOPTEEYX Baird. 



Btelgidopteryx Baird, Birds N. Amer. p. 312, 1858. Type ^S^. serripennis 

 (Audub.). 



Fig. 134:.— To show outer web 

 of tii'st primary. 



Fig. 133.— To illustrate the form 

 of the tail. 



This genus is chiefly distinguished by the serrations on the 

 outer web of the first or outer priiiiary-quill. The bill is de- 

 pressed, the width at the base of the forehead is about equal io tlie 

 length of the exposed culmen, and the nostrils are rounded and 

 exposed. The wing is pointed, the first or outer primary longest. 

 The tail is nearly square at the tip and about half the length of 

 the wing. The tarsus is about equal in length to the middle too 

 and claw. Coloration : male and female similar. 



