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Show 1876.] SPECIES OF BOLIVIAN BIRDS. 355 media, cum illo melius congruere videtur : habitus fere sicut O. fumigati, sed rostro breviore, et quoad colores corpore subtus ferrugineo primo visu distinguenda. Besides the Bolivian example, we have a specimen of this same species obtained by Mr. Whitely, at Paucartambo, in Peru, in January 1874. 10. OCHTHCECA PULCHELLA, sp. nov. Supra cinerea, dorso postico rufescente: loris et superciliis angustis citrino-Jlavis, fronte pileo concolori: alis et cauda fuscis, secundariorum marginibus externis et tectricum majorum et minorum apicibus dare rufis: subtus dilutius cinerea, ventre medio albicantiore, hypochondriis rufescentibus : rostro fusco, subtus ad basin albicante: pedibus nigris: long, tota 4*5, ala 2*4, caudae 2*0. Hab. Tilotilo, prov. Yungas, Bolivia. Obs. Species forma et ptilosi O. citrinifrontis, ex iEquatoria, sed fronte non flava et alis rufo bifasciatis distinguenda. 11. AN^RETES FLAVIROSTRIS, Sp. nOV. Supra cineraceo-olivaceus, fronte et lateribus capitis nigro striolatis,pilei plumis ad basin albis, crista tenui elongata nigra terminatis: alis nigris, secundariorum et tectricum alarium marginibus latis distincte albis : cauda nigra, rectricis utrinque extimee pogonio externo toto et ceterarum, nisi in mediis, apicibus angustis albis: subtus pallide citrino-jiavicans, gula et pectore toto albo et nigro confertim filammulato : rostro ad basin aurantiaco, ad apicem nigricante: pedibus nigris: long. tota 4*0, ala 2*1, cauda 2*2. Hab. Tilotilo, prov. Yungas, Bolivia. Obs. Species A. parulo proxima, sed flammulis pectoris latioribus, tectricum fasciis albis distinctis et rostro ad basin aurantiaco diversa. Sclater's collection contains a worn specimen of this species collected in Bolivia by Bridges, which has been hitherto referred to A. parulus. 12. LATHRIA UROPYGIALIS, sp. nov. (Plate XXXII.) Supra cinerea unicolor, alis caudaque obscurioribus; uropygio late castaneo : subtus dilutior, hypochondriis et ventre imo cum crisso castaneo-rufis: alarum remigibus primariis externis in mare valde acuminatis et extrorsum versis, in femina paulum acuminatis: rostro corneo, pedibus nigris: long, tota 10*5, ala 5*5, cauda 5*6. Hab. Tilotilo, ad alt. 8000 ped., Bolivia. Obs. Species remigum forma abnormali insignissima, crassitie et habitu generali L.fuscocinerea prsedita. The structure of the wing of this species is of so remarkable a character that it deserves a more lengthened notice. As will be seen by the figure, the inner web of the first primary of the male of L. uropygialis begins to be slightly attenuated at |
