Keys for the identification of British Curculionidae (weevils)
A large family in the British fauna, well-covered by Morris in the Handbooks to the Identification of British Insects series.
The following keys may be used in conjunction with Morris's works. They are translated and adapted from German texts. Note that there are some gaps in my coverage - subfamilies Cossoninae and Scolytinae.
This is the access document. It keys out the other families of weevils as well as the Curculionidae and then takes the Curculionidae to subfamily. This document includes a detailed examination of the morphology, based on a dissection of Otiorhynchus sulcatus.
Family Curculionidae, key to British subfamilies.pdfSubfamily Bagoinae
The 21 British species in theis subfamily all belong to genus Bagous and are associated with wet habitats.
Subfamily Bagoinae, key to British species.pdfSubfamily Baridinae
Seven species in five genera are known from Britain.
Subfamily Baridinae key to British species.pdfSubfamily Ceutorhynchinae
Thirty genera have been recorded from Britain, including Ceutorhynchus with 30 species.
Subfamily Ceutorhynchinae, key to tribes and genera.pdfGenus Ceutorhynchus key to British species.pdfSubfamily Cossoninae
15 species are keyed here in 13 genera
Subfamily Cossoninae key to British species.pdfSubfamily Cryptorhynchinae
Six British species in five genera
Subfamily Cryptorhynchinae key to UK species.pdfSubfamily Curculioninae
A large group with 27 genera represented in Britain.
Subfamily Curculioninae key to genus and species.pdfSubfamily Entiminae
The short- or broad-nosed weevils. 29 genera occur in Britain including Phyllobius, Sitona and Otiorhynchus which are often encountered.
Subfamily Entiminae key to tribe, genus and some species.pdfSubfamily Entiminae, genus Otiorhynchus key to British species.pdfSubfamily Entiminae, genus Phyllobius key to British species.pdfSubfamily Entiminae, genus Sitona key to British species.pdfSubfamily Hyperinae
18 British species in two genera
Subfamily Hyperinae key to British species.pdfSubfamily Lixinae
There are 12 species on the British list, but five of these are based on very old records and are probably no longer present here. The key mentions them all.
Subfamily Lixinae, key to species.pdfSubfamily Mesoptilinae
two genera with 8 species on the British list
Subfamily Mesoptilinae key to British species.pdfSubfamily Molytinae
Representatives of ten genera have been found in Britain.
Subfamily Molytinae key to British genera and species.pdf