About Psilothrix viridicoerulea (Geoffroy, 1785)
Adults of Psilothrix viridicoerulea reach a body length of 4.8–6.6 millimetres (0.19–0.26 inches). This beetle has a brilliant metallic bluish-green color. Its body is fairly long and narrow. The head is slightly longer than it is wide, with a flat face, large round eyes, and short green-metallic hairy antennae made up of eleven short articles that protrude inwards. The pronotum and elytra have thick, deep, strong punctures, and are covered in black erect hairs. The elytra are very elongated, and square-shaped at the base. The legs are long, slender, greenish, and hairy. The pygidium, which is the last tergite of males, has a small but deep V-shaped notch. This species is fairly similar in appearance to Psilothrix aureola. This beetle is mainly found across most of Europe, including Belgium, the Netherlands, Denmark, Italy, Spain, Portugal, Greece, Croatia, France, Germany, Ireland, Latvia, Malta, North Macedonia, Slovenia, Sweden and Switzerland, and also in the Near East. Additional localized populations exist in England, mostly along the southern coastline. During the summer, these beetles are quite common in meadows, pastures, and grasslands, and can be seen on a variety of flowers.