Centris semilabrosa (Cockerell, 1910) nom. rev.

Hemisia semilabrosa Cockerell, 1910: 142.

Type data

This species was described based on a single female specimen collected by William F.H. Rosenberg in an undetermined locality in Ecuador. The holotype was examined and is currently housed at NHMUK bearing the following data label: [circular label with red-rimmed margin] Type [printed]\ Ecuador. Rosenberg. 99-104- [printed]\ Hemisia semilabrosa Ckll Type. [handwritten]\ B.M. TYPE HYM. [printed] 17B 911. [handwritten].

Type locality

Ecuador.

Comment

Centris triangulifera nom. rev., C. labrosa Friese, 1899 and C. terminata Smith, 1874 belong to a complex internal lineage of C. (Heterocentris), which apparently also includes some undescribed species from Central and South America. Unfortunately, a taxonomic revision of this subgenus is not currently available, so the real identity of these species is unclear. Centris labrosa and C. triangulifera are different species, but the type specimen of the latter is almost identical with that of C. semilabrosa, which was proposed as a junior synonym of C. terminata (see Moure et al. 2007). Considering the complexity of the problem, I propose to remove C. triangulifera (see below) from the synonymy of C. labrosa – a synonymy proposed by Snelling (1984), who apparently did not study the type specimens of the latter species – and C. semilabrosa from the synonymy of C. terminata, at least until a taxonomic revision of this group is made that allows to distinguish the limits between each of these species.