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Show 1870.] MR. o. SALVIN ON THE BIRDS OF VERAGUA. 181 ix. p. 92). Arce obtained several specimens, in some of which cross markings on the under parts are almost obsolete. 6. THRYOTHORUS SEMIBADIUS, sp. n. Supra intense castaneus, fronte et capitis lateribus albis, plumis singulis nigro marginatis: alis et cauda nigris extus badio transfasciatis, tectricibus alarum minoribus albo transvittatis: subtus albus, a pectore usque ad caudam nigro transfasciatus, gula pure alba, hypochondriis postice castaneo lavatis: rostro corneo mandibula pallidiore ; pedibus nigricantibus : long, tota 5'3 poll, angl., alee 2*6, caudee 2*0, rostri a rictu 0*9, tarsi 0*9. Fern. Omnino mari similis. Hab. Bugaba (Arce?). Obs. Species distincta, T. nigricapillo Scl. forsan affinis, sed pileo nigro carens. This species belongs to the section Thryophilus, Baird, having an open and not operculated nostril. It has no very near allies, but somewhat resembles T. nigricapillus and T. castaneus, Lawr., both of which, however, are black-headed species, and have the under parts less densely and regularly marked. Arce has forwarded us both sexes of this Wren from the district of Chiriqui. 7. THRYOTHORUS MODESTUS, Cab. J. f. Orn. 1860, p. 409. Bugaba. Specimens from this locality resemble the Panama race (Baird, Rev. Am. B. p. 131). Thryothorus rufalbus. Calovevora; Chitra ; Castillo. Thryothorus rutilus. Boqueti; Calovevora ; Bugaba. This species, though common in Veragua, has not yet been met with in Costa Rica. Henicorhina leucosticta. Boqueti de Chitra ; Cordillera del Chucu. 8. HENICORHINA LEUCOPHRYS (Tsch.). Heterorhina leucophrys, Baird, Rev. A m . B. p. 118. Calovevora ; Chitra ; Cordillera del Chucu ; Mina de Chorcha. Prof. Baird (I. c.) recognizes two races of this form ; but after a close examination of our series of specimens, which includes examples from Bogota, I confess I do not think he has established his case. In all the differential characters brought forward I find variation in different individuals, so that the nine specimens before me, if separated, cannot be grouped in a definite manner. It is true, I may not have the species called by Baird H. leucophrys; but a single Costa- Rica skin, and several from Veragua, seem to agree very well with his description. Our Guatemalan specimens are darker on the head than others from Bogota ; the Veraguan examples are variable in this respect, as also in the amount of dark striations on the throat. |
