A new and distinctive species of Ceratina Latreille (Hymenoptera: Apidae) from Veracruz, Mexico

Ceratina Latreille is a cosmopolitan genus with around 380 described species, typically small in size and exhibiting primitive social structures; their habit of nesting in dry plant stems has earned them the common name of small carpenter bees. This work presents an addition to the diversity of the genus in Mexico, with the description of Ceratina valenzuelai sp. nov. from the cloud forest in centralVeracruz State. Only males are known, which are polymorphic, with some macrocephalic individuals, a rare trait among the New World Ceratina. Comments on its biology and taxonomic placement within the subgenus Ceratina (Calloceratina) are also included