An insect of the Diptera order, Syrphidae family (illustration). Adults are about 11 mm long. The thorax is shiny copper-black, the abdomen is yellow, and each segment has two black bands. Distributed throughout the country, adults can be seen around Tokyo from March to October, gathering on flowers to suck them. They overwinter as adults, and lay their first eggs in early spring, around March or April, with three eggs emerging by October. Adults feed on nectar, pollen, and aphid secretions. Eggs are laid on host plants where aphids are breeding, and hatch in about six days. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
双翅目ショクガバエ(ハナアブ)科の昆虫(イラスト)。成虫は体長約11mm。胸背は光沢ある銅黒色,腹部は黄色で各節に2本の黒帯がある。全国に分布し,東京付近では成虫は3月から10月ころまで見られ,花に集まり吸みつする。成虫で越冬し,第1回目の産卵は早春3~4月ころに行い,10月ころまでに3回発生する。成虫の食物は花みつ,花粉,アブラムシの分泌液などである。卵はアブラムシの繁殖した寄主植物に産みつけられ約6日で孵化(ふか)する。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
…1185-1318. Also known as the Sevuna dynasty. Bhi...
...Therefore, from then on, fortification techniq...
…A thin tube inserted into the stomach through th...
This waterfall is located in the Rokko Mountains ...
…After the Treaty of Nystad made Estonia a Russia...
Isospin is a physical quantity that describes the ...
… [Oldest rocks] West Greenland is a shield made ...
A general term for compounds formed by condensati...
…He was professor at the Universities of Caen, Na...
The former name of the southeastern part of Okaya...
It is a county-level city in the Ji'an prefec...
...Even in cases where the birth room was under o...
The Venetian style was popularized in Germany aro...
...an Islamic mystical monk who belongs to a tari...
...These photographs allowed people to become fam...