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Helcystogramma convolvuli
''Helcystogramma convolvuli'', the Sweet Potato Moth, Sweetpotato Webworm Moth, Sweetpotato Leaf Roller or Black leaf folder, is a moth of the Gelechiidae family. It is mainly found in Asia and Africa, but there are also records from Oceania, the Middle East, the Caribbean〔(CSL Pest risk analysis for Helcystogramma convolvuli )〕 and Florida.〔(mothphotographersgroup )〕 The species is also found on the Canary Islands and Madeira.
The wingspan is 13–15 mm. The forewings are dark tawny fuscous. The hindwings are brownish grey.〔(lepiforum.de )〕
The larvae feed on Convolvulaceae species, including ''Ipomoea batatas'', ''Convolvulus arvensis'', ''Merremia quinquefolia'' and ''Ipomoea aquatica''. First instar larvae create a tunnel of silk along the leaf vein and feeds underneath on the surface tissue. The second instar larvae move to the upper leaf surface and fold the leaf, feeding within the fold until the green tissues are consumed, when it moves to another leaf.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Helcystogramma convolvuli」の詳細全文を読む
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