Twelve species of weevils, with the exception of 2 species of Procas associated with wetland or riparian habitats. They are found by examination (or by extraction) of floating and emergent vegetation (usually monocotyledonous), pitfall trapping or at M.V. light in suitable habitats. The north american Stenopelnus rufinasus Gyllenhal. was first discovered in Britain from the Norfolk Broads in 1921 (Jansen, 1921) and is now found sporadically over southern England and southern Wales. It is common where found, on water fern. Around 2.5mm with rostrum short, around 1.5 times longer than broad.

Our species are included in two tribes; Erirhinini (11spp.) and Stenopelnini (1sp.). In the Erirhinini the rostrum is long, at least four times longer than wide, and parallel or subparallel. The scrobes are placed laterally and not visible from above. Tarsi with 2 claws. Pronotum without deep pores or tubercles, front margin not raised or bordered. Elytra smooth, without raised interstices or outstanding setae. Front femora not toothed. Front tibia with small tooth on inner edge apically (must sometimes be looked for very carefully), outer edge of front tibia not produced or toothed. Tarsi pseudotetramerous, third segment deeply divided and strongly lobed. Tarsi with 2 claws, free (not connate), not toothed at base or appendiculate.

The most recent work for the identification of British species is Morris.

Jansen, D.E., 1921 Ent. Mon. Mag. 57:225-226



Notaris acridulus

Notaris scirpi

Thryogenes fiorii