L. castaneus  chestnut-brown  < castanea  chestnut  < Gr. καστανον kastanon  chestnut; venter, ventris  belly.
● ex “Ferruginous-bellied Nuthatch” of Latham 1822 (syn. Sitta castanea).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 18 January 2019).