mayfly & stonefly

The Creationには多くの動植物名が出てきますが、今日はその内の昆虫の名前を覚えたい。
The mountains of suouthern Appalachia compose the most ancient range in North America never blanketed by continental glaciers. Their forests are correspondingly the richest in biodiversity. In the upland streams swarm mayflies, stone flies and other delicate and ephemeral insets, with ancestral lines older than the Age of Reptiles.
まず "mayflies" を調べます。
・Oxford English Dictionary: A short-lived, slender insect with delicate, transparent wings and two or three long filaments on the tail. It lives close to water, where the chiefly herbivorous aquatic larvae develop. Order Ephemeroptera: several families and many species
・Collins English Dictionary: Also called: dayfly. any insect of the order Ephemeroptera (or Ephemerida). The short-lived adults, found near water, have long tail appendages and large transparent wings; the larvae are aquatic: Roads near to streams could damage the local mayfly これはカゲロウのようですね。
次に "stone flies" の説明を辞書でみます。辞書では "stone" と "fly" の二語ではなく "stonefly" の一語にしているのが大半です。
・Oxford English Dictionary: A slender insect with transparent membranous wings, the larvae of which live in clean running water. The adults are used as bait by fly fishermen. Order Plecoptera: many families
・Collins English Dictionary: any insect of the order Plecoptera, in which the larvae are aquatic, living beneath stones, and the adults have long antennae and two pairs of large wings and occur near water
これでは "stonefly" と余り区別が付きません。Wikipediaで写真を見ると羽の形がちょっと違うようです。英和辞典ではカワゲラとなっていました。