“蜘蛛类”用英语怎么说？

最意想不到的发现之一是我与一族蜘蛛类生物的相遇。One of the most unexpected surprises was my encounter with a race of arachnid creatures.蜘蛛类的相对丰盛度最高,为0.3465,瘿蚊科的相对丰盛度为0.2309, 二者在群落中所占比例较高.Arachnida and Cecidomyidae had a higher relative abundanc...