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Thread-waisted Wasps (Sphecidae)
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Great Black Digger Wasp (Sphex pensylvanicus)
Photo#1113674
Copyright © 2015
Aaron Eckley
Mud Dauber Wasp? -
Sphex pensylvanicus
-
29th Avenue Prairie, Marion, Linn County, Iowa, USA
July 22, 2015
Size: 3.5 cm
This sp. seems to be the most attracted to milkweed.
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Contributed by
Aaron Eckley
on 1 August, 2015 - 9:36pm
Last updated 30 March, 2017 - 3:36pm
Moved
Moved from
Thread-waisted Wasps
.
…
John S. Ascher
, 4 August, 2015 - 10:41am
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Female!
Aaron, there is a large cell, in the middle of the wing, that resembles a slightly stretched out diamond. I believe that is the first dicoidal cell. This is a very distinctive shape and reminds me of the genus Sphex. After seeing that there is only one choice, your wasp is most likely a female
Great Black Wasp
,
Sphex pensylvanicus
. Here is one from your state that shows the same wing cell:
NOTE: This large cell shape is also present on the wings of wasps in the genus Isodontia. That is a slightly smaller sized group of related wasps.
Please add the size information! Thanks
…
Bob Biagi
, 1 August, 2015 - 11:19pm
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Thanks
Appreciate the ID and info!
…
Aaron Eckley
, 2 August, 2015 - 6:56am
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Size!
Please note that I could be wrong and most people's guesses are going to be more accurate when you provide them with a proper size estimate. Do you own a scaled ruler or a tape measure? This should always be an important data point for every bug that you identify.
…
Bob Biagi
, 2 August, 2015 - 8:05am
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Size added
Just added the size. I have an app on my smartphone which is a metric or U.S ruler. It comes in handy because you can put a tick mark on the ruler to show the exact measurement.
…
Aaron Eckley
, 3 August, 2015 - 3:23pm
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Female - Bugphone
10 Flagellomeres and 6 abdominal segments = ♀
…
Bob Biagi
, 3 August, 2015 - 3:34pm
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Moved
Moved from
ID Request
.
…
Ken Wolgemuth
, 1 August, 2015 - 10:44pm
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Thanks.
Thanks.
…
Aaron Eckley
, 2 August, 2015 - 6:57am
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