Grypus equiseti (Fabricius, 1775)

horsetail weevil

on Equisetum

parasite

Larvae and pupae in the stems. For the oviposition a wound is gnawed in the wall of them stem, that later is covered with a white, soon hardening secretion.

host plants

Equisetaceae, monophagous

Equisetum arvense, palustre.

In the laboratory adult feeding also occurred on E. pratense, sylvaticum.

distribution within Europe

(PESI, 2019).

larva

See Cawthra.

synonyms

Grypidius equiseti.

references

Cawthra (1957a), Dieckmann (1986a), Poinar jr (2014a), Rheinheimer & Hassler (2010a).

mod 10.v.2019