Datos faunísticos de abejas de las provincias de Asturias y León (noroeste de España), con una especie aún no citada en la península ibérica (Hymenoptera, Apoidea, Anthophila).

Numerous new data on a total of 165 bee species from the Spanish provinces of Asturias and León are presented, including one (Nomada obtusifrons Nylander, 1848) that had not previously been reported from the Iberian Peninsula, with several first provincial records and information on the plants these species visit. Comments on the distribution range of the most remarkable species are also included. The paper is illustrated with field photographs of specimens in their natural environment, along with images taken through a binocular microscope showing the diagnostic details of some taxa that are either interesting or difficult to determine. [ABSTRACT FROM AUTHOR]