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Brachycaudus helichrysi : ウィキペディア英語版 | Brachycaudus helichrysi
''Brachycaudus helichrysi'' is a species of aphid first described by the German naturalist Johann Heinrich Kaltenbach in 1843.〔(【引用サイトリンク】title=''Brachycaudus helichrysi'' (Kaltenbach, 1843) )〕 Its common names include leaf curl plum aphid,〔(【引用サイトリンク】title=UC IPM - Leaf Curl Plum Aphid )〕 and leaf-curling plum aphid, and it is a serious pest of plum and damson trees. ==Description== The viviparous wingless females have an oval or pear-shaped body and grow to a length of up to . Early in the season they are brownish but later they are yellowish-green. The antennae are pale green and short, about half the length of the body. There is no dark, shining patch on the dorsal surface of the abdomen, a fact which distinguishes it from the otherwise similar thistle aphid (''Brachycaudus cardui''). The cauda (tail-like elongation) is bluntly rounded, the legs are pale except for the extremities, and the cornicles are pale-coloured, short and flanged.〔 Winged females range from in length and have a blackish head with longer antennae, blackish thorax and a green abdomen with dark spots on the third to sixth segments. The overwintering eggs are black.〔
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「Brachycaudus helichrysi」の詳細全文を読む
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