Paleoenvironmental-indicator
Guides
Blera
Wood Flies
Blera is a genus of hoverflies (Syrphidae) established by Billberg in 1820. The genus is primarily North American in distribution, with approximately three European species. One species, Blera fallax (pine hoverfly), has been the subject of conservation translocation efforts in Britain since 2018. A fossil species, Blera miocenica, has been described from Early Miocene deposits in the Czech Republic, representing the first known fossil record of the genus.