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Photo#1331264
Egg-laying robber #2 - Promachus vertebratus - female

Egg-laying robber #2 - Promachus vertebratus - Female
Manikowski Prairie, Clinton County, Iowa, USA
September 16, 2014
Ovipositing (apparently), first on a developing seedhead of one plant, then on the more mature seedhead of another.

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I would love to know more about the life cycle of such flies from here on out...that is, what exactly happens when the eggs hatch? Do the larvae stay on the plant for long, or drop to the ground? What do the larvae eat? Is there an advantage to hiding eggs high up in plant stalks?

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Egg-laying robber #2 - Promachus vertebratus - female Egg-laying robber #2 - Promachus vertebratus - female Egg-laying robber #2 - Promachus vertebratus - female

Moved
Moved from Robber Flies.

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