Belongs within: Thraupidae.
The Geospizini, Darwin’s finches, are a small clade of finch-like birds endemic to the Galápagos and Cocos Islands west of South America.
<==Geospizini [Geospizinae]
| i. s.: Cactospiza heliobatesW92
|--Certhidea Gould 1837LB15, RJ11 [Certhideinae]
| |--C. fusca Sclater & Salvin 1870RJ11
| | |--C. f. fuscaRJ11
| | |--C. f. becki Rothschild 1898RJ11
| | |--C. f. bifasciata Ridgway 1894RJ11
| | |--C. f. cinerascens Ridgway 1890RJ11
| | |--C. f. luteola Ridgway 1894RJ11
| | |--C. f. mentalis Ridgway 1894RJ11
| | `--C. f. ridgwayi Rothschild & Hartert 1899RJ11
| `--C. olivacea Gould 1837RJ11
`--+--Platyspiza Ridgway 1897LB15, RJ11
| `--P. crassirostris (Gould 1837) [=Camarhynchus crassirostris]RJ11
`--+--Pinaroloxias Sharpe 1885LB15, RJ11
| `--P. inornata (Gould 1843) [=Cactornis inornatus]RJ11
`--Geospiza Gould 1837LB15, RJ11
|--G. difficilis Sharpe 1888LB15, RJ11
| |--G. d. difficilisRJ11
| `--G. d. debilirostris Ridgway 1894RJ11
`--+--Camarhynchus Gould 1837LB15, RJ11
| |--+--C. parvulus (Gould 1837)LB15, RJ11 [=Geospiza parvulaRJ11]
| | | |--C. p. parvulusRJ11
| | | `--C. p. salvini Ridgway 1894RJ11
| | `--C. pauper Ridgway 1890LB15, RJ11
| `--+--C. psittacula Gould 1837LB15, RJ11
| | |--C. p. psittaculaRJ11
| | |--C. p. affinis Ridgway 1894RJ11
| | `--C. p. habeli Sclater & Salvin 1870RJ11
| `--+--C. heliobates (Snodgrass & Heller 1901)LB15, RJ11 [=Geospiza heliobatesRJ11]
| `--C. pallidus (Sclater & Salvin 1870)LB15, RJ11 [=Cactornis pallidaRJ11, Cactospiza pallidaJF06]
| |--C. p. pallidusRJ11
| |--C. p. productus Ridgway 1894RJ11
| `--C. p. striatipecta (Swarth 1931)RJ11
`--+--G. septentrionalis Rothschild & Hartert 1899LB15, RJ11 [=G. difficilis septentrionalisRJ11]
`--+--+--+--G. acutirostrisLB15
| | `--G. fortis Gould 1837LB15, RJ11 [incl. G. nebulosaRJ11]
| `--G. fuliginosa Gould 1837LB15, RJ11
`--+--+--G. conirostris Ridgway 1890LB15, RJ11
| | |--G. c. conirostrisRJ11
| | `--G. c. darwini Rothschild & Hartert 1899RJ11
| `--G. magnirostris Gould 1837LB15, RJ11
`--+--G. propinqua Ridgway 1894LB15, RJ11 [=G. conirostris propinquaRJ11]
`--G. scandens (Gould 1837)LB15, RJ11 [=Cactornis scandensRJ11]
|--G. s. scandensRJ11
|--G. s. abingdoni (Sclater & Salvin 1870)RJ11
|--G. s. intermedia Ridgway 1894RJ11
`--G. s. rothschildi Heller & Snodgrass 1901RJ11
*Type species of generic name indicated
References
[JF06] Jønsson, K. A., & J. Fjeldså. 2006. A phylogenetic supertree of oscine passerine birds. Zoologica Scripta 35: 149–186.
[LB15] Lamichhaney, S., J. Berglund, M. S. Almén, K. Maqbool, M. Grabherr, A. Martinez-Barrio, M. Promerová, C.-J. Rubin, C. Wang, N. Zamani, B. R. Grant, P. R. Grant, M. T. Webster & L. Andersson. 2015. Evolution of Darwin’s finches and their beaks revealed by genome sequencing. Nature 518: 371–375.
[RJ11] Rising, J. D., A. Jaramillo, J. L. Copete, P. G. Ryan & S. C. Madge. 2011. Family Emberizidae (buntings and New World sparrows). In: Hoyo, J. del, A. Elliott & D. A. Christie (eds) Handbook of the Birds of the World vol. 16. Tanagers to New World Blackbirds pp. 428–683. Lynx Edicions: Barcelona.
[W92] Wilson, E. O. 1992. The Diversity of Life. Harvard University Press: Belknap (USA).