Key for the identification of British Chaoboridae

A relatively small family in the British fauna with only six species.  They are most noticed as the larvae, which are found in freshwater and have a ghostly, almost transparent appearance.  They are know as phantom larvae and the adults by association, phantom midges.  The adults resemble the non-biting midges.

The key below updates that in the Royal Entomological Society key by Freeman (1950).  It includes a detailed description of Chaoborus crystallinus and copies/translations of the original descriptions of the British species.


Family Chaoboridae, key to British species.pdf