请输入您要查询的英文单词:

 

单词 Aphididae
释义

Aphididae

plural noun

Aphid·​i·​dae
əˈfidəˌdē,
āˈ-,
aˈ-
: a large family of Homoptera comprising small soft-bodied plant lice that are usually somewhat pear-shaped with wings if present held vertically over the back when at rest, well-developed antennae, and a pair of prominent wax-secreting cornicles on the posterior part of the abdomen from which the covering of white waxy filaments typical of many species is produced and that have a complex life cycle in which resistant fertilized eggs produced in the fall hatch out parthenogenetic females in the spring that give birth to repeated generations of winged or wingless parthenogenetic females on the same or other kinds of host plants, finally producing a generation of winged males and winged or wingless females that mate and produce the fertilized eggs

Word History

Etymology

New Latin, from Aphid-, Aphis, type genus + -idae

随便看

 

英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/24 14:56:48