92 Ridgway — New Species of Birds from Tropical Aim rim. 



Nyctibius maculosus sp. nov. 



Type from Ambato, Ecuador. No. 35,571, coll. Am. Mus. Nat. Hist.; 

 M. A. Vascomez, collector. 



Similar in size to N. griseus jamaicensis, but coloration very different; 

 general tone of coloration much darker, the under wing-coverts and 

 inner webs of primaries uniform sooty blackish, posterior under parts 

 spotted with black, and a large white or whitish area on middle wing- 

 coverts. 



Measurement* of type. — Length (skin), 340 mm. ; wing, 2(>5 ; tail, 185; 

 exposed culmen, 21.5; tarsus, 10.5; middle toe, 19. 



A specimen from Bogota, Colombia (no. 4:5*4, coll Am. .Mus. X. II.), 

 is evidently the same species, but may represent a different subspecies. 

 It differs in having the middle wing-covert area nearly pine white, and 

 the posterior under parts apparently white and with less heavy markings; 

 much of the plumage of the under parts is wanting, however. It 

 measures: Wing, 265; tail, 1ST; exposed culmen, 23; tarsus, 9.5; 

 middle toe, 19.5. 



