POLIOL.EIMA. — HERPSILOCHMUS. 37 



latter and pale buff margins on the inner webs, the innermost 

 secondary quills black with largo fulvous spots at the tips, the 

 spots decreasing in size on the outer secondaries ; upper tail- 

 coverts and tail black with rufous-buff tips to the feathers, under 

 surface of tail similar ; flanks, abdomen, and under tail-coverts 

 chestnut ; under wing-coverts dusky. 



Total length 87 mm., exposed culmeu 14, wing 52, tail 29, 

 tarsus 19. 



Adult female. Differs from the adult male in the absence of the 

 dark slate-grey on the head, hind-neck, upper back, throat, sides 

 of the face, and breast, re]daced by dusky-brown, which is paler on 

 the breast and becoming whitish on the throat. Wing 49 mm. 



The male described was collected by Mr. McConnell on the 

 Lower Mazaruni River during his expedition to Mount Roraima 

 in 1898; the female was collected on the Makauria River. 



Breeding-season. Unknown in British Guiana. 



Sest. Unrecorded in British Guiana. 



Eggs, Undescribed from British Guiana. 



Range in British Guiana. Mount Roraima, Bartica, Kamakabra 

 River, Makauria River, Lower Mazaruni River, Arawai River 

 {McConnell collection) ; Kamakusa, Bartica {Whiteit/). 



Extraliniital Range. Surinam (Fenard), Cayenne {Vieillot). 



Habits. According to Schomburgk (Reis. Guian. iii. p. 688) this 

 bird inhabits the outskirts of woods. It procures its food, which 

 consists of insects, on the ground among the leaves under the 

 bushes. 



Genus HERPSILOCHMUS Cab. 



U^rpsilochmus Cabanis, Arcliiv fiir Naturi;. xiii. pt. i. p. 224, 1847. 

 Type //. i>ilt'alH)i (Liclit. ). 



Fig. 18. — Herpsilochmus pileatus. 



The species on which tins genus was founded has a somewhat 

 long bill, in proportion to its general size, which is hooked at the 

 tip. The wing is rounded, the fourth primary slightly longest. 

 The tail is also rounded and graduated, the outermost feather on 



