Naming
This species is very similar to Canthophorus dubius. A certain identification requires dissection.References:
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Down shielding
Canthophorus impressus
Canthophorus impressus can reach a length of 6–8 millimeters (0.24–0.31 in) and a width of 3.5–4.5 millimeters (0.14–0.18 in).
The body of these shieldbugs is oval, black or dark blue, sometimes metallic green or bright violet. The margins to the pronotum and corium of the hemielytra are white. Antennae are black with the second segment smaller than third. The legs are black. The membrane of the hemielytra is whitish and connexivum shows white bands.
The body of these shieldbugs is oval, black or dark blue, sometimes metallic green or bright violet. The margins to the pronotum and corium of the hemielytra are white. Antennae are black with the second segment smaller than third. The legs are black. The membrane of the hemielytra is whitish and connexivum shows white bands.
