"barn spider"的定义和意义

What is a "barn spider"?

A barn spider, also known as Araneus cavaticus, is a species of orb-weaving spider that typically resides in barns, sheds, and other structures. It is recognized for its large size, brownish coloration, and intricate circular webs. The barn spider is adept at capturing flying insects that become entangled in its web, making it a valuable predator for controlling pest populations. Despite its intimidating appearance, the barn spider is generally harmless to humans and plays an important role in maintaining ecosystem balance.