Agromyza nigrociliata Hendel

This widely distributed but minor pest of cereals and grasses has, on occasions, reached pest status on rye and wheat. The larval mines appear from early June onwards. They resemble those of Agromyza nigrella (above) but are usually broader and typically contain several larvae. Mined leaves become discoloured; heavy infestations of flag leaves on cereals are of most significance. Adults (wings 2.9-3.5 mm long) are mainly black with dark squamae. Larvae are whitish-yellow and the puparia dark reddish-brown.

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