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Tiny wasp/fly, Phoenix AZ, 6-18-2019


Best Answer Manitobant , June 18 2019 - 6:21 PM

Ensign wasp. They're good to have as they parasitize cockroaches. Go to the full post


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#1 Offline Herdo - Posted June 18 2019 - 6:01 PM

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These tiny wasp/flies have been invading my house recently.  I usually find at least 1 every other day.

 

Here's a photo with a measurement (7mm) from head to end of gaster:

 

 

 

 

They are actually quite a bit larger than that due to their long legs and extremely long antennae.  Their antennae are actually longer than their body, as you can see here:

 

 

 

 

My initial guess was some sort of spider wasp, but I find it odd that I would be finding so many considering they are solitary creatures.



#2 Offline Manitobant - Posted June 18 2019 - 6:21 PM   Best Answer

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Ensign wasp. They're good to have as they parasitize cockroaches.
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#3 Offline Herdo - Posted June 18 2019 - 7:18 PM

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Ensign wasp. They're good to have as they parasitize cockroaches.

Excellent, thank you for the quick ID. I've already seen 3 cockroaches this year so I'm happy to let these guys hang around.

Now I feel bad about killing them, haha. I assumed they could sting, and didn't want my daughter getting hurt. I'll just release them outside from now on.

Edited by Herdo, June 18 2019 - 7:19 PM.

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#4 Offline Ant_Dude2908 - Posted June 19 2019 - 4:59 AM

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They can sting, but they won't sting people if you don't press one down against your arm. :lol:
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#5 Offline Herdo - Posted June 19 2019 - 1:26 PM

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They can sting, but they won't sting people if you don't press one down against your arm. :lol:



Ok, good to know.

Thank you.
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