Phylogenomic-revision
Guides
Biastini
Biastini is a tribe of cleptoparasitic bees within the subfamily Nomadinae (family Apidae). Members are obligate cleptoparasites that exploit the nests of solitary bees, particularly oligolectic hosts. The tribe has undergone significant taxonomic revision, with recent phylogenomic studies establishing that Biastini is paraphyletic and should be synonymized under an expanded concept of Neolarrini. The tribe includes the enigmatic genus Schwarzia, which exhibits unusual morphological features and represents a transitional lineage.