876 Zoological Society : — 



PROCEEDINGS OF LEARNED SOCIETIES. 



ZOOLOGICAL SOCIETY. 



March 10, 1857.— Dr. Gray, F.R.S., in the Chair. 



Characters of some apparently New Species of American 

 Ant - Thrushes. By Philip Lutley Sclater, M.A., 

 F.L.S., &c. 



1. FORMICARIUS TRIVITTATUS. 



Supra fuscO'cinnamomeus, suhtus clariovy gula pallidiore : alls 

 caudaque nigris cinnamomeo tinctis, illarum tectricibus minori' 

 bus et majoribus fascia terminali et remigibus ipsis fascia me- 

 diali alba prceditis, itaque alis trifasciatis : oculorum ambitu 

 seminudo : rostro et pedibus nigris. 



Long, tota 7*0, alaB 3*4, caudse 2 '5. 



Hab, In ripis fl. Amazonum. 



Mus. Brit. 



The only individual of this species which I have yet seen is that 

 in the British Museum. It is easily recognizable among its conge- 

 ners by its thrice-banded wings. I am now acquainted with seven 

 birds which I consider to be probable members of this genus, viz. 

 — (1.) CAYANENSis, Bodd. PL Eul. 821 (colma, Gm. et Bodd., 

 tetemaj Jjicht. y fuscicapilla, Vieill., 7'ujiceps, Spix), ex Guiana et 

 Brasilia. (2.) analis (Lafr. et d'Orb.), Voy. d. 1 Am. Mer. Ois. 

 pi. 6*. f. 1, ex Bolivia, Cayenna et ins. Trinitatis. (3.) nigrifrons, 

 Gould, P. Z. S. 1855, p. 68, ex Nov. Grenada et fl. Amazon. (4.) 

 moniliger, Sclater, P. Z. S. 1856, p. 294, ex Mexico. (5.) tri- 

 vittatus. (6.) erythropterus, Gould, P. Z. S. 1855, p. 69. 

 (7.) NiGROMACULATus (Lafr. et d'Orb.), Voy. d. I'Am. Mer. pi. 6*. 

 f. 2, ex Bolivia et fl. Amazon sup. 



The last three birds have the space round the eyes more or less 

 denuded, and would form the subgenus Phlegopsis, Reichb., of which, 

 I believe, F. nigromaculatus is the type. In that very peculiar 

 member of this family Pyriglena nudiceps (Myiothera nudiceps, 

 Cassin, Pr. Ac. Sc. Phil. v. p. 106. pi. 6), this formation is developed 

 to a still greater extent, the whole top of the head being naked. 



2. Conopophaga castaneiceps. 



Conopophaga ardesiaca^ Tsch. Faun. Per. p. 179, et Sclater in 

 P. Z. S. 1855, p. 145, nee Lafr. et d'Orb. 



Supra olivascenti-brunnea ; pileo castaneoyfrontem versus Icetiore : 

 lateribus capitis et gula nigricanfi-cinereis : penicillum post- 

 oculari album : subtus cinereay abdomine medio albescentiore : 

 lateribus olivaceo indutis : mandibula superiore nigrUy inferiore 

 flavstty pedibus brunneis. 



Long, tota 4*4, alse 2*9, caudee 2-7. 



Hab. In Nova Grenada, Bogota et in Peruvia Orientali (Tsch,). 



Mus. Brit, et P. L. S. 



This is a typical Conopophagay with the characteristic white pencil 



