Cassida rubiginosa Müller, O.F., 1776

Taxonomy: Polyphaga > Chrysomeloidea > Chrysomelidae > Cassida > Cassida rubiginosa

Common name: 

Thistle Tortoise Beetle


Cassida rubiginosa
Cassida rubiginosa
Cassida rubiginosa


Size: 6-8mm
Basic colour: Green or yellowish-green.
Pattern colour: Elytra sometimes with a small dark triangular spot around the scutellum, also usually a small dark spot near the suture.
Number of spots: See 'pattern colour'.
Pronotoum: As basic colour
Leg colour: As basic colour
Confusion species: Cassida vibex


Status: Common and widespread.
Habitat: Various
Host plant: Various Asteraceae, including thistles and many others.
Overwintering: Adults hibernate in tussocks and moss.
Food: Leaves of host plants - adults usually on the underside, larvae usually on the upper side; adults may also feed on pollen of buttercups and ox-eye daisies.
Other notes: Almost circular looking from above.

Distribution (may take a minute to appear)