i-92 ) 

 ^(i. Formicarius ruficeps amazonicus Hellm. 



.Uyothera ruficfjis Sjiix, Ar. Unix. i. (18l'4) p. 72, tab. Ixxii. fig. 1 (Brasilia).] 



Fui-muaiiiis riipfpx uniusoiiii im Hellmayr. Dniith. M'/nbrr. \. (March 19112) p. 34 (Bcrba : Xatterer 

 coll. : Mus. Vindob.). 



One c? adnlt, May 3, 1004. No. '2102. Al. 8'.^ ; caiifl. aij ; rostr. 2ii mm. 



This .s])eciiiieti ditfer.s f'roiu a series of true /'. rtijiccps from S. Panlo and Baliia 

 only in its decidedly darker rufous pileum ; the other points of distinction do not hold 

 good. Against my former statement (/.r.) the back iu the Pani specimen is even more 

 greenish than in liirds from S.E. Brazil, and the wings are of ijuite the same colour 

 in both. Perhaps the nurthern form will turn out to be inseparable when a larger 

 series is available. 



As pointed out in my former article {Oni. Monbir. x. p. :54), the proper name 

 for the red-fronted species is /'. i-ujicepi (Spixj, of which I examined the type in the 

 Munich Museum. But the black-fronted species must bear the name Formicarius 

 colma Bodd. {Tabl. PL eiil. 1783. p. 44), based on D'Aubenton's PL 7U3. fig. 1, 

 which obviously represents the female of the Cayenne form. The female of 

 /'. colma has always the throat pure white, sharply defined against the sooty grey 

 breast ; in /•'. rujiceps the sexes are exactly alike, the throat Ijeing black like the 

 sides of the head in both. Only young birds have the throat white, freckled with 

 blackish. 



47. * Conopophaga roberti Hellm. 



Bull. Brit. Oni. CI. No. cxiv. (March 190.".) p. [,i. 



i ad. Top and sides of the head, throat and foreneck black ; postocular pencil 

 of elongated feathers silky white ; back and upper wing-coverts pale rufons-brown ; 

 quills dusky, outer webs and tertiaries pale rufous-brown, rather lighter than the 

 back ; tail rather more olive-brown. Sides of the body pale greyish with a slight 

 olivaceous brown admi.xture on the flanks ; middle of the breast and abdomen 

 white ; under tail-coverts whitish. Axillaries pale grey with white margins; under 

 wing-coverts whitish, those near the edge of the wing iilack. Inner edge of the 

 quills very indistinctly dirty greyish white; thighs dark grey with paler tips. 

 Upper mandible black, lower one whitish. Iris " bruu-noir," feet " gris-bleu clair." 

 Al. 71 i ; caud. 39 J ; rostr. 1.5 mm. 



Type : S ad. Igarapt^Assii (Para), 5U m., April 4, l'.)ii4. No. 2ii32. 



Mons. Robert sent only one male of this interesting species. Its nearest ally is 

 C.melanoyastra, but the latter is much larger,* with a considerably longer and heavier 

 bill ; the back and upper wing-coverts are deep chestnut, and tiie black of the throat 

 extends over the whole breast, only the abdomen and the flanks being dark grey. 

 G. aurita (Gm.) agrees in form and size with C. roherti, but differs at a glance in 

 having the top of the head rufous brown and the foreneck bright chestnut-rufons, 

 besides other differences. 



The type specimen has slight blackisii apical margins on some of the dorsal 

 feathers ; these markings, however, are nuu-li h'ss a]ipiirent than in the allied 

 C. aurita. 



* Two m:ile.s of C. melamnjiutra from liorba iu the Vienna Museum mea^iure ua follows : Al. SI— S2 ; 

 caud. 43 — 4i : rostr. 19— 2U mm. 



