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What's this fly doing?

Started 8 months ago | Questions thread
OP pubserv Contributing Member • Posts: 520
Re: What's this fly doing?

I was afraid of that. Thanks!

macrouser wrote:

It looks like it is eating some kind of feces, maybe from an insect or caterpillar. They have to liquefy there food first by disgorging some digestive juice and then they can suck it up.

Some flies have teeth or a piercing mouth part to break the skin to let blood out.

You got a good photo at lest.

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