Archanara neurica

A. neurica Hbn. (= edelsteni Tutt) (49 h).[Adults are predominantly light brown, with a pale fringe along the front edge of the thorax]. Forewing brownish fawn colour, hardly dusted with darker; no distinct dark streak along middle; edges of stigmata marked by pairs of black dots above and below, interrupted in cell; the upper half of each broader than the lower; (in arundineta this is not the case;) median vein marked with black and white scales; lower lobe of reniform not black, but some black scales above median vein on each side of it; inner and outer lines complete, the latter strongly lunulate-dentate ; a row of black marginal lunules; hindwing brownish grey, with dark outer line and terminal border; tips of shoulders white; underside without cellspots or other markings. Larva dull bluish green, with 3 faint pale grey dorsal lines and fine black tubercles; spiracles black; head black-brown; thoracic plate yellowish brown with darker edge and dots.[2] The wingspan is 26–29 mm.

Figs 1 larva after last moult on stem of reed

Adults are on wing in July and August in one generation in western Europe.[3]

The eggs overwinter and hatch into larvae that feed on common reed species,[4] including Phragmites communis and Phalaris arundinacea. They feed internally in the stems of their host plant.