Thamnurgus varipes Eichhoff, 1878

on Euphorbia

parasite

The female bores a vertical gallery of a few cm in the stem, and deposits some eggs. Also the larvae make galleries in the stem, that sometimes are recognisable from the outside by the greyish-blue colour of coagulated latex. Also pipation and hibernation takes place in the stem. The stem does not show a recognisable swelling but the leaves have turned limp.

host plants

Euphorbiaceae, narrowly monophagous

Euphorbia amygdaloides.

distribution within Europe

(PESI, 2019).

references

Balachowsky (1949a), Mandelshtam, Petrov & Korotyaev (2012a), Roskam (2019a), Schedl (2010a), Stevanonić (1998a).

mod 7.xii.2019