Currently viewing the category: "Crabronid Wasps"
What's That Bug? does not endorse extermination
Sand Wasp

Sand Wasp

Subject:  Sand Wasps attracted to Mint
Location:  Mount Washington, Los Angeles, California
August 20, 2016
The mint is continuing to attract Honey Bees as well as Skippers, Marine Blues, Syrphid Flies and some gorgeous wasps, like this Sand Wasp in the genus
Bembix.  According to BugGuide, the habitat is “Usually sandy areas; nest holes are dug in the sand; best opportunity to observe individuals is on dunes or where vegetation is sparse.”  BugGuide continues:  “Females provision their nest with flies which the larvae feed on (a single developing larva may eat more than twenty flies)” and “Provisioning is progressive. The females provide a greater number of prey over subsequent days during larval growth. Adults are excellent diggers and can disappear below the surface of loose sand within seconds.”

Sand Wasp

Sand Wasp

Sand Wasp

Sand Wasp

What's That Bug? does not endorse extermination

Subject: Nice Cicada-killer wasp with prey
Location: Charlottesville, Virginia, US
August 11, 2016 3:38 pm
I actually have two of these in front of my door — one burrow is beneath a corner of my front walk, the other is apparently under a nearby holly tree. Here’s a pic I got of the former carrying a cicada
Signature: Dave H,

Cicada Killer with Prey

Cicada Killer with Prey

Dear Dave,
You don’t know how refreshing it is for us to receive an image of a Cicada Killer with its prey that we can tag with Food Chain as opposed to tagging it with Unnecessary Carnage since we receive so many images of dead Cicada Killers.  So many people have irrational fears about Cicada Killers, and we concur that they are large and quite formidable looking, but as the host to two underground broods, we would love to have you write back so we can verify to our readership that Cicada Killers are not aggressive toward humans.

A Facebook Comment from Wanda
In all my years of weeding and tending my Rain Garden, I have never – repeat never – been approached or threatened by a Cicada Killer Wasp, even those who were larger than my thumb! I can safely say the same for the other wasps in my garden: Northern Paper, Great Black, Great Golden Digger, Potter and others. They are all more interested in the nectar from the plants, especially the milkweed. I walk past them, they fly past me as I work, they don’t even land on me. I welcome them for the pollinating work they do.

Dave H. confirms Cicada Killer Docility
Subject: Re:  Indeed, Cicada-killers are quite mellow
August 12, 2016 11:42 am
I’ve watched them often as I stood outside smoking,  and they’ve never even made a warning swoop toward me.   Surely one of the biggest wasps most folks will encounter, but also one of the least dangerous.
While I’m at it, I just wanted to compliment that picture of a molting cicada — that one is truly spectacular, and the little girl in the background just underlines the wonder of the moment.
Signature: Dave Harmon

We agree that it is a wonderful image Dave.

What's That Bug? does not endorse extermination

Subject: Large flying black and yellow insect
Location: Hamilton OH
August 6, 2016 8:38 am
Found this flying around our wood deck mid morning on Aug 6, 2016. My husband knocked it down with a flyswatter and trapped it in a peanut butter jar. Our five grandkids are fascinated and want to know what type of insect it is. My husband wants to know if it will destroy our deck.
Hope you can help!
Signature: T. Spears

Cicada Killer

Cicada Killer

Dear T. Spears,
Your deck is safe from this Cicada Killer Wasp, a non-aggressive species that will basically ignore humans, though humans often kill them out of irrational fears.  The female Cicada Killer will excavate an underground nest that she provisions with paralyzed Cicadas that provide a living source of fresh meat for her growing brood.

What's That Bug? does not endorse extermination

Subject: Predation
Location: Andover, NJ
July 28, 2016 8:16 am
I was lurking around my butterfly garden this morning and happened to see this small wasp (Eumenine maybe?) subduing a large syrphid. Amazingly, the wasp took off with her prize with seemingly little effort!
Signature: Deborah Bifulco

Square Headed Wasp preys upon Hover Fly

Square Headed Wasp preys upon Hover Fly

Good Mornind Deborah,
What an amazing image.  This is a Square Headed Wasp in the subfamily Crabroninae, and we believe that based on this image from BugGuide, that it is in the genus
Ectemnius.  According to BugGuide:  “most nest in decayed wood (logs, stumps), sometimes in sound wood; provision the nests with Diptera.”   The prey appears to be a Drone Fly.

Thanks so much, Daniel!  I was a bit off on my wasp ID, wasn’t I?  Even with multiple field guides, I still find it rather challenging to get the subfamily correct.  But it sure is fun trying!  I just wish our summers lasted longer – once winter comes, I’m lucky to find a shield bug.
Debbi

What's That Bug? does not endorse extermination

Subject: Rather large bee?
Location: Bayville, New Jersey
July 20, 2016 8:28 am
I’d like to know what this is.
Signature: Naomi

Cicada Killer

Cicada Killer

Dear Naomi,
This is a Cicada Killer, a large, non-aggressive, solitary wasp that hunts Cicadas.

What's That Bug? does not endorse extermination

Subject: Sand Wasp
Location: West Valley City, UT
July 13, 2016 8:15 am
It’s fairly easy to tell this is a Sand Wasp given the shelter and size. Finding out that they are not aggressive to humans AND they feed on flies means this little guy(gal) gets to stay right where he(she) is. July 12, 2016, West Valley City, UT.
Signature: Vic M.

Sand Wasp

Sand Wasp

Dear Vic,
Thanks for sending in your image of a Sand Wasp in the tribe Bembicini in her nest.  We don’t think we will be able to provide a species identification based on this image.  According to BugGuide:  “About three quarters of the species prey on Diptera, and it is believed that fly predation is ancestral in the group; the rest prey on Lepidoptera, Hymenoptera, Neuroptera, Odonata, and/or Homoptera.”

What's That Bug? does not endorse extermination