Usually with a green abdomen and a dark band along posterior margin of the pterostigma.  The forewing veinn Cu2 is without hairs.  Some individuals lack the dark band.

• Distinguished from the two other British Stenopsocus species (S. immaculatus and S. lachlani) by dark band along posterior margin of pterostigma and fore wing vein Cu2 glabrous.
• S. stigmaticus more frequently has a green abdomen than the other European Stenopsocus species, S. immaculatus and S. lachlani (the green colour is caused by the dissolution of chlorophyll in the blood).

with dark band by pterostigma without dark band

• green abdomen
• dark band along posterior margin of pterostigma OR glabrous vein Cu2

Photographs should show wing venation and pterostigma.  Microscopic examination of wing may be needed for some poorly marked individuals

Has been found mainly on Hawthorn but also on other deciduous tree species.

May to November.

This is a rather infrequent species. Existing records indicate that S. stigmaticus is widespread in England though it is progressively more localised further north and is absent from Scotland. There are no records for Ireland.

Infrequent in Leicestershire and Rutland.