Revision of the Eucerini (Hymenoptera: Apidae) of the Luis Óscar Aguado Martín collection with new records for the Iberian Peninsula

We revised 664 specimens of Eucerini preserved in the private collection of Luis Óscar Aguado Martín, documenting 46 species from Spain, Portugal, and the Canary Islands. The study provides several regional first records and notable range extensions.

The first confirmed Iberian records of Eucera (Eucera) curvitarsis Mocsáry, 1879 and Eucera (Eucera) dafnii Dorchin, 2019 represent remarkable westward extensions of their previously known European distributions. The presence of Eucera vulpes in northeastern Iberia is confirmed and its known distribution expanded. In addition, the examination of a specimen labelled as the holotype of Eucera (Synhalonia) asensioi Tkalců in litt. demonstrates that it corresponds to Eucera tricincta Erichson, 1835; the unpublished name is therefore unavailable and should be excluded from Iberian faunal lists.