It is native to a wide range of countries between mid and eastern Europe and lives alongside rivers and in meadows, it feeds on various plant members of the mint family.

[7] C. herbacea and Chrysolina graminis (tansy beetle) both have a mixture of fine and coarse punctures on the pronotal disk.

[6] Similar to other species of Chrysolina beetles, C. coerulans has cardiac glycosides (including xylose) in its defensive glands.

[10] It was originally published and described by German theologian and entomologist, Ludwig Gottlieb Scriba in 1791 in Journal für die Liebhaber der Entomologie, Volume 3 on page 286.

[3][6][14] Its distribution spans mid and eastern Europe,[5][10] including Cyprus,[15] Hungary,[16] France, Italy, Macedonia, Turkey.

[11] Then in 2009; Latvia,[17] and then in 2011; Austria, Belarus, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Estonia, Germany, Ireland, Liechtenstein, Poland, Romania, Slovakia, Slovenia, Switzerland, the Netherlands, and Ukraine.

[6] The 2009 source also mentions the range extending to Central Asia; the Caucasus, Iran, Iraq, Afghanistan, southern Urals, western China, northern and eastern India.

[4] RHS plant health principal scientist Andrew Halstead said as the bug was established on mainland Europe, "The detection of breeding adults in the UK could mean problems for gardeners who grow this herb," he said.

"[4] Main symptoms UK gardeners were asked to look for irregular holes in foliage and blue beetles on the leaves.