...Notes from the Field

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Interesting Nature Facts #158 – Tachinid Flies

by | Jun 2, 2021

While tachinid flies at first might look like large housefly, they have a very different lifestyle. These large spiky flies enjoy a plant-based diet, feeding on nectar from flowers and other botanical treats. But when it comes to laying eggs, it gets much darker and predatory. In North America, most tachinid flies lay their eggs on caterpillars, and upon hatching the maggots eat the the caterpillar alive from the inside, typically emerging as adults after the caterpillar has already made its cocoon.

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Interesting Nature Facts is a series about the flora, fauna and places that make North America so amazing. Posts include nature photos that are short & sweet, and all about the native and naturalized wildlife that is all around us with just one or two interesting nature facts that you might not know about. If you want to find out even more, simply click on the image or links above!

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