white swallow-wort
vincetoxicum hirundinaria latin

Vincetoxicum hirundinaria (as A. vincetoxicum )

The larvae feed on Vincetoxicum hirundinaria, which contains toxic alkaloids and is unpalatable to most generalist herbivores.

Vincetoxicum (Vincetoxicum hirundinaria)

Vincetoxicum hirundinaria is a long-lived herbaceous perennial of the genus Vincetoxicum in the family Apocynaceae.

These bugs feed on plant juices, particularly milkweed (Vincetoxicum hirundinaria), Spring pheasant's eye (Adonis vernalis) and sometimes also on dandelions.