Thamnurgus varipes Eichhoff, 1878
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.
Euphorbiaceae, narrowly monophagous
Euphorbia amygdaloides, characias.
distribution within Europe
Balachowsky (1949a), Mandelshtam, Petrov & Korotyaev (2012a), Nikulina, Mandelshtam, Petrov, ao (2015a), Roskam (2019a), Schedl (1980b, 2010a), Stevanonić (1998a).