Cheilosia mutabilis explained

Cheilosia mutabilis is a European species of hoverfly. Like most Cheilosia it is black, and because of this may often be overlooked as a hoverfly. It is little recorded, and is considered rare and scarce throughout most of its range.^[1]

Notes and References

1. Book: Stubbs, Alan E. . Falk, Steven J.. 1983 . British Hoverflies: An Illustrated Identification Guide. 253, xvpp . British Entomological & Natural History Society.