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Adaina montanus
''Adaina montanus'' is a moth of the Pterophoridae family. It is found in North America, including south-eastern Canada and the north-eastern United States.〔(Bug Guide )〕
The wingspan is about 16 mm. The head is white and the antennae are faintly dotted above with brownish. The thorax, abdomen and legs are snow white, although the fore and middle legs are brownish on the inner side. The forewings are snow white, sprinkled with ferruginous-brown scales, especially on the outer half of the costa. A spot of these scales is found before the base of the fissure and runs obliquely to a darker spot on the costa, which is nearly connected by a dark shade with another brown costal spot near the apex. There is a dark-brown fine streak on the outer half of the costa of the second lobe extending through the fringe under the apex. All of the rest of the fringe is snow white. The hindwings are dusted with cinereous brown.〔(The pterophoridae of North America )〕
Adults have been recorded in July.
The larvae feed on ''Xanthium strumarium canadense'' and ''Symphyotrichum novi-belgii''. Young larvae are found on the underside of the leaves of their host plant. Later, they can also be found on the upperside. Young larvae eat out the parenchyma, leaving the epidermis. First instar larvae are entirely white, except for the claws and mandibles. Later instars are pale green, although the eighth and ninth rings are yellow. When full-grown, the larvae are pale pea green, with a paler head and a dorsal stripe consisting of three white lines. The seventh, eighth and ninth rings yellow. Pupation takes place in a light green pupa, although some have a reddish stripe along the dorsal part of the abdomen.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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