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Stenopsocus stigmaticus

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Species account
Stenopsocus stigmaticus A moderately large (5-6mm) barkfly that often has a green abdomen. The species has not yet been recorded in Scotland or Ireland but is widespread in England and Wales.
Female subgenital plate Areola postica joined to median vein. Forewing without markings except for prominent dark line along the edge of the pterostigma cell.
Stenopsocus stigmaticus Specimens have been found that do not have the dark line on the edge of the pterostigma cell. These can be distinguished from S. immaculatus by the conspicuous widening of the pterostigma and the faint vein section.
Male sclerite Vein Cu2 glabrous i.e. with no short hairs (setae) along vein. (In contrast to S. immaculatus s.l. that does have setae).

 

Centre for Ecology and Hydrology Joint Nature Conservation Committee National Biodiversity Network