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Fletcher Wildlife Garden | all galleries >> Bees, wasps, ants and sawflies (Hymenoptera) of the FWG (19 galleries) >> Thread-waisted wasps (Family: Sphecidae) > Great black digger (Sphex pensylvanicus)
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06-AUG-2013 Christine Hanrahan

Great black digger (Sphex pensylvanicus)

Mid-summer is when this impressively large Sphecid wasp turns up, along with another equally large Sphecid, the orange and black Sphex ichneumoneus, which I also saw today. This one is nectaring on canada thistle.

Although I mentioned low insect numbers earlier, today was actually quite a good day for seeing a variety of creatures. Included in my tally were dozens of the tiny green and black Acutalis treehoppers, one Enchenopa treehopper, Coelidia leafhoppers, Graphocephala leafhoppers, Bicyrtes wasps, a number of honey bees all nectaring on burdock flowers which are fresh right now, lots of bumblebees, a few sweat bees of different species, and a few leafcutter bees. There were many grasshoppers but difficult to get a good look at. For butterfly observations (not many), I saw a summer azure, 5 or 6 cabbage whites, and a white admiral.

Canon PowerShot SX20 IS
1/500s f/5.7 at 100.0mm iso100 hide exif
Full EXIF Info
Date/Time06-Aug-2013 10:53:19
MakeCanon
ModelCanon PowerShot SX20 IS
Flash UsedNo
Focal Length100 mm
Exposure Time1/500 sec
Aperturef/5.7
ISO Equivalent100
Exposure Bias
White Balance
Metering Mode
JPEG Quality
Exposure Program
Focus Distance1.350 m

other sizes: small medium original auto
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