Amphigerontia bifasciata |
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Species account |
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A moderately large (c.4.5mm) barkfly. Uncommon in Britain and Ireland. |
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Forewing mainly colourless with an indistinct dark spot above the areola postica cell. If the radius vein near the spot is extended it is not continuous with vein c (cf. A. contaminata). |
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Female
The upper extension of the subgenital plate is short (cf. A. contaminata).
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Male
The lobe at the apex of the hypandrium is almost parallel sided (cf. A. contaminata).
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