Centridini

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Hymenopterida
Ordo: Hymenoptera
Subordo: Apocrita
Superfamilia: Apoidea

Familia:Apidae
Subfamilia: Apinae
Tribus: Centridini
Genera (2): Centris – Epicharis
Name

Centridini Moure, 1945
References

Martins, A.C., Melo, G.A.R. & Renner, S.S. 2014. The corbiculate bees arose from New World oil-collecting bees: Implications for the origin of pollen baskets. Molecular Phylogenetics and Evolution 80: 88–94. DOI: 10.1016/j.ympev.2014.07.003 Reference page. [Indicates paraphyly of Centridini]
Moure, J.S. 1945: Apoidea da Coleção do Conde Amadeu Barbiellini. II. (Hym. Apoidea). Rev. Entomol. (Rio J.) 16(3): 394–414.
Catálogo electrónico de los organismos presentes en Colombia

The Centridini are a tribe of large apid bees, many of which possess adaptations for carrying floral oils rather than (or in addition to) pollen or nectar. The floral oils are often gathered from plants of the family Malpighiaceae, though other plants may be visited. The oil-collecting species typically have "combs" composed of closely spaced, flattened, blunt bristles on the margins of the first tarsal segments of the front and middle legs; others may have velvety "pads" to absorb the oils. They also commonly gather plant resins for use in nest cell construction. They have a tiny pterostigma in the forewing, the female scopa is very bushy, and the first flagellomere of the antenna is often longer than the scape.

Centris are commonly encountered bees in American deserts, and are active at very high ambient temperatures when many other species are in hiding. They can often be seen in large numbers on palo verde blossoms. A common example in Arizona is Centris pallida.[1]
References

Michener, Charles Duncan (2000-01-01). The Bees of the World. JHU Press. ISBN 9780801861338.

C. D. Michener (2000) The Bees of the World, Johns Hopkins University Press.