( 288 ) 



and the same species. I may remark that in a large series of the allied C. iiiffrexcens 

 (Cab. & Heine) the same variation is to be observed. There might be perhaps 

 some uncertainty about the application of the name C. cinerascenit, for Mr. Sclater, 

 when describing tlio species, confounded it with the liird here called C. .vlatrri, 

 the S jr. from Chamicnrros belonging to that species. As ho, however, expressly, 

 states that /•'. ci nerascens differs from its Brazilian ally (= C. brn.vliroift itiilii) 

 " cumptcriitt iion alliig'' which cliaracter refers only to C. napcnxis, it becomes 

 evident that he regarded the Napo specimen as the type. Consequently the name 

 cinerascens is to be transferred to the species hitherto called ('. iiupt'nsits.' This 

 is very unfortunate, but I see no way to avoid this change of wrongly " established 

 nomenclature." 



The females, referred to above, are very uniform in coloration. There is never 

 any trace of a white shoulder-spot, and the wing-coverts are either uniform or show 

 only very slight buify-whitish margins on the greater series. One specimen from 

 Pebas (No. 2ii of the above list) agrees in every respect with the examples from 

 Eastern Ecuador, and is, no doubt, referable to C. cinerascens. 



b. C. sclateri nom, nov. 



Fijvmicivora cinerascens Sclater, P. Z. S. 18;i7. p. 131 part [excl. descr. et hab. " fl. Xapo "] ('■ in 



Peruvia orientali, Chamicurros " : (J jr.). 

 Cevcomacra chicrascens (nee Sclater 1857 !) Sclater, Cfit. Birch Brit. .lA«s. .xv. p. 204 part, (descr. et 



Bpecimens : 3 — j onhi). 

 C. caerulescens (nee Vieillot I) Petzeln, Oni. Brasil. ii. (18()8) p. 84. 



(?. Differs from that of the foregoing species in having a distinct white patch 

 on the shoulders, and the wing-coverts black, with sharj}ly defined wliite apical 

 spots or margins. The general colour, too, is darker, more schistaceous, espei'ially 

 on the lower surface. Tail-feathers with broad white tips varying in length from 

 5 — 9 mm. Graduation of tail 20 — 24 mm. 



Habitat. S.E. Peru: Iquitos (Hahnel) ; Chyavetas and U])])er Ucayali 

 (Bartlctt) ; Yurimaguas (Stolzmann) ; between Moyobamba and Xeberos (coll. 

 l^aimondi) ; Sarayacu (Bartlett) ; Chamicuros (Hauxwell) IT. Bra:il: Matto- 

 grosso ; Salto do Girao and Borba, on the Eio Madeira (Natterer) ; Cachoeira, near 

 Guyaba (Smith). S. Brazil : Igarape-Assii, near Panl (Robert). 



