Pieridae
Noun | 1. | Pieridae - arthropod family including cabbage butterflies; sulphur butterflies |
单词 | pieridae | |||
释义 | Pieridae
PieridaePieridae[pī′er·ə‚dē]Pieridaea family of insects of the suborder Heteroptera (Frenatae). They are diurnal butterflies. The wing spread is up to 8 cm. Most of the Pieridae species of moderate width are characterized by white or yellow coloring with black tracery. There are more than 500 species altogether; in the USSR there are approximately 80 species. Individual genera of Pieridae are generally associated with specific plant families: for example, the pierids (Pieris) with crucifers, and the sulfur butterfly (Colias) with legumes. Some members of the Pieridae family are harmful to agricultural crops and trees; these include the caterpillars of the cabbage butterfly, the Russian turnip butterfly, and the turnip butterfly, which sometimes devastate fields of cabbage, turnips, and other plants, and the caterpillar of the blackveined white butterfly, which harms seed-fruit and stone-fruit crops. Harmful Pieridae are exterminated by mechanical means (such as destroying the “winter nests” containing the blackveined white butterfly caterpillars) or by chemical means (such as sprinkling or dusting with intestinal-acting or contact insecticides). Pieridae
Synonyms for Pieridae
|
|||
随便看 |
|
英语词典包含2567994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。