Castanozoster, Burns, Kevin J., Unitt, Philip & Mason, Nicholas A., 2016

Burns, Kevin J., Unitt, Philip & Mason, Nicholas A., 2016, A genus-level classification of the family Thraupidae (Class Aves: Order Passeriformes), Zootaxa 4088 (3), pp. 329-354 : 340

19. Castanozoster , new genus ( Fig. 3 )

Type species. Fringilla thoracica Nordmann, 1835 (currently Poospiza thoracica ).

Included species. Monospecific; includes only Castanozoster thoracicus , currently recognized as Poospiza thoracica . Because the name Castanzoster is masculine in gender and Poospiza is feminine, the ending of the adjectival specific epithet changes.

Diagnosis. This genus is diagnosed by the specific characters of Fringilla thoracica Nordmann, 1835 .

Etymology. The name is formed from the Greek καστανό (“chestnut,” both the nut and the color) and Greek ζωστήρ (“belt”), alluding to the bold chestnut band across the bird’s breast and down its flanks. Its gender is masculine.

Comments. Poospiza thoracica belongs to a clade of 14 other species representing six currently recognized genera in traditional classifications. Burns et al. (2014) did not find strong support for the placement of P. thoracica within this clade. Thus, unless a broad genus including all 14 of these species is recognized, a new generic name is needed for P. thoracica . Accordingly, we provide Castanozoster for this purpose.

Figures

FIGURE 3. Maximum clade credibility tree from the Bayesian analyses of Burns et al. (2014). Subfamilies Sporophilinae and Poospizinae shown. Labeling and format as in Fig. 1.