Catocala of Prince Edward Island

Catocala concumbens, posed scan on poplar bark by Bill Oehlke,
Montague, Prince Edward Island, August 22, 2002

There are not too many species indigenous to Prince Edward Island so identification is easy, except in the cases of blandula and crataegi.

The following table divides all North American Catocala species into twenty one different groups. Moths are grouped according to hindwing colour bands (yellow, orange, salmon, red, pink, black or white) and wingspan measurements (small = 35-55mm, medium = 55-75 mm and large = 75mm plus).

There is some overlap regarding size. Generally if a species exceeds the upper limits of one group, I have placed it in the group with the larger span. There is also subjective interpretation of colour. What is orange to me, may be yellow or salmon to another, etc..

Wingspan refers to the distance from wing tip to wing tip when the moths are spread with the inner margin of the forewing perpendicular to the body.

Those found on Prince Edward Island are located in their respective groupings.