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''Arge pagana'' is a sawfly in the family Argidae. It is known by the name "large rose sawfly" although the related species ''Arge ochropus'' is also known by this name ==Description== ''Arge pagana'' can reach a length of about 1 cm. Wings and veins on the wings are black, often with blue metallic sheen. Pronotum and legs are also black. Its most conspciuous feature is a large rounded yellow abdomen. It has a black head and thorax and the legs are largely black. Adults feed on nectar and pollen from ''Tanacetum vulgare'' and ''Heracleum sphondylium''. The eggs are laid on roses. Larvae appear on the first half of July and they acquire their full size at the end the same month. They reach about 25 mm and are pale green with black dots and a yellow head. These larvae are gregarious and live in colonies feeding on leaves of roses (''Rosa acicularis''). The pupal period is very short as the larva, buried from July 20 to 25, provides the perfect insect in the first days of August. During the year there may be two, rarely three generations of insects. Arge pagana 5 beentree.jpg|Larva Arge pagana 3 beentree.jpg|Scar on the shoot of rose after the deposit of eggs Large rose sawfly (Arge pagana stephensii).jpg|''A. p. stephensii'', Oxfordshire 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「Arge pagana」の詳細全文を読む スポンサード リンク
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