How the Megarhyssa Wasp Lays Eggs Inside Trees
Автор: Nature Cam 5
Загружено: 2024-08-14
Просмотров: 224
My children were very excited to find "the weirdest bug they have ever seen!"
Megarhyssa macrurus, also known as the long-tailed giant ichneumonid wasp or long-tailed giant ichneumon wasp, is a species of large ichneumon wasp. It is a parasitoid, notable for its extremely long ovipositor which it uses to deposit an egg into a tunnel in dead wood bored by its host, the larva of a similarly large species of horntail.
The ovipositor looks like a single filament, but it comprises three filaments, the middle one of which is the actual ovipositor, capable of drilling into wood. This central filament also appears to be a single filament but is made of two parts, with a cutting edge at the tip. The two parts interlock and slide against each other.
Although very thin, the ovipositor is a tube and the egg being laid moves down a minute channel in its center. The outer two filaments are sheaths that protect the ovipositor; they arc out to the sides during egg-laying.
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