About Cassida denticollis Suffrian, 1844
Like all species in the genus Cassida, Cassida denticollis Suffrian, 1844 has a head that is completely covered by the pronotum, and wide elytral margins. Adult individuals of this species measure between 5.1 and 7.0 mm in total body length. Their body is primarily green, with distinct brownish-red areas surrounding the scutellum. A clear, distinct tooth is present on the rear edge of the pronotum, and the front edges of the elytra bear a row of small, strong, blunt teeth; this species gets its name from these diagnostic teeth. In terms of feeding ecology, Cassida denticollis feeds on plants belonging to the family Asteraceae. Documented host plants include Achillea millefolium, Artemisia absinthium, Artemisia campestris, and multiple species in the genus Tanacetum, specifically Tanacetum corymbosum and common tansy.
