Our compost pile has a constant cloud of flies above it, which is not ideal, but is also not terrible. Our pit is more of a cool-composting operation than a hot pile that kills off the larvae of insects. We find Chinese beetle grubs and we feed them to the chickens or wild birds.
Yesterday, however, I witnessed something wholly new to me in the compost pit… and I’m pretty sure it’s terrible. Just under the top layer of foods and soil in our pit is a writhing mass of large maggots- they are similar-looking to mealworms, except they have a more elliptical body shape than the usual worm. Once brought up into the sunlight, they move like maggots, their little searching ends wriggling themselves back into the earth, shoving dirt to either side.
I’m pretty sure the thousands (yes, thousands) that are in our pile are the harbinger of a major flying insect explosion in a matter of days or weeks. HELP! We stuck a chicken on them yesterday, and I went out to find her HIDING in the house part of the chicken tractor, rather than eating them. I think THEY would eat HER if she were standing in the compost pit.
Can anyone identify what type of larvae this is?

June 24, 2010 at 11:11 am
it looks like black soldier fly pupae. according to BugGuide as quoted by whatsthatbug: ““larvae compete with house flies in manure, compost piles, etc., and may thus be beneficial. Adults are harmless and not known to carry any human disease.”
http://www.whatsthatbug.com/2010/02/16/black-soldier-fly-pupa/
June 24, 2010 at 12:24 pm
Yikes, not sure what this is. In our compost pile we have a lot of fruit flies and earthwigs. We keep our compost in a bin and have been adding a lot of browns to even out the compost. It was looking so moist. What do you put in your compost?? Is it just veggie food scraps? If so, those bugs shouldn’t be anything harmful.
September 6, 2010 at 6:01 am
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