摘要 : Observations of the provisionally-Near-Threatened (pNT) anthomyiid fly Leucophora sericea Robineau-Desvoidy at an aggregation of the mining bee Andrena flavipes Panzer on Weybourne beach, north Norfolk, were made in July and Augus... 展开 Observations of the provisionally-Near-Threatened (pNT) anthomyiid fly Leucophora sericea Robineau-Desvoidy at an aggregation of the mining bee Andrena flavipes Panzer on Weybourne beach, north Norfolk, were made in July and August 2021. This study followed on from the discovery of L. sericea by us, as the first Norfolk record of this species, at the same site in July 2020. The observations reported here provide strong evidence that this rare fly is a cleptoparasite of this common bee. 收起