Two striking brassy metallic bands on forewing. Typically these two bands are separated, however the form tutti has the two vertical brassy bands on the forewing joined forming an H-shape.
The separate banded and H-shape banded forms are both the same species.
A controversial species named Diachrysia stenochrysis also has the two vertical brassy bands on the forewing joined forming a “H-shape”. It is suggested that the join needs to be at least 3 millimetres wide for it to be considered D stenochrysis. The species has not been clearly distinguished externally and genitally from D chrysitis.
Please note: Diachrysia stenochrysis has not been proven to occur in the UK.
Recorded in 67 (91%) of 74 10k Squares.
First Recorded in 1834.
Last Recorded in 2021.