Tag Archives: robber flies

The Predator and the Scavenger

I found a robber fly, possibly Laphria thoracica flavicollis (as identified on Bugguide) today while I was chasing butterflies.  It had captured a small colorful bug as its prey. The activity had already attracted a scavenger.  Note the much smaller fly taking advantage … Continue reading

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Green-eyed Lady

I just got back from a work trip to Camp Ripley in central Minnesota.  I took the opportunity to visit some local wild areas there after work.  There is a SNA site called The Ripley Esker.  I was mainly chasing … Continue reading

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Life Cycle of a Robber Fly

This is a robber fly, probably an Efferia species.  It seems to be ovipositing (laying eggs) on the head of a pale purple cone flower. What happens after that is open to some speculation.  Scientists are not sure how the … Continue reading

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Another Cool Bug

I came across this robber fly while I was road-hunting for butterflies tonight. Probably a female Efferia alibarbis.  

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Robber Flies are Pretty Impressive

I have always found robber flies to be impressive.  There are two small species around my place that are very common and I have photographed them a lot.  There are some others that are larger and not very common, and I … Continue reading

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More Yummy Meals

There is another small robberfly–3 or 4 mm long, which seems to be fairly common.  I do confess that I never noticed them before last year, however.  It is Holocephala.  There three very similar species in the Eastern U. S., … Continue reading

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Bugs for Breakfast

Cerotainia is an effective predator. It seems to prefer perching on the tips of leaves that have long narrow points. Although they are not large there are a lot of them and they are pretty good at capturing prey.  

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A Tiny Robber Fly Returns

There is a tiny robber fly that is quite common around here.  I never noticed it until a few years ago.  Now I see them everywhere. This is Cerotainia albipilosa. Funny how you can go a long time never noticing … Continue reading

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Another Robber Fly

I saw this robber fly at the Bugguide gathering.  I don’t know the name of it, but it is a female, as evidenced by its long, pointed abdomen.

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Bugguide Gathering

There is a web site out there called bugguide.  There is a three day event going on called the Bugguide Gathering.  I have been attending it and I enjoy it a lot. Here is a photo I took today and posted.  … Continue reading

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