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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Genus Pemphredon

Aphid Wasp - Pemphredon Unknown Hymenoptera - Pemphredon Aphid Wasp? - Pemphredon Tiphiidae? - Pemphredon Pempredon - species? - Pemphredon - male - female Genus Pemphredon - Aphid wasp - Pemphredon Possible to get genus on this pemphredonine? - Pemphredon yellow-orange larva? - Pemphredon
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Apoid Wasps (traditional Sphecidae))
Family Crabronidae (Square-headed Wasps, Sand Wasps, and Allies)
Subfamily Pemphredoninae (Aphid Wasps)
Tribe Pemphredonini
Subtribe Pemphredonina
Genus Pemphredon
20 spp. in 2 subgenera in our area(1), 44 spp. total(2)
Forewing with two recurrent veins and three discoidal cells; stigma small or moderate in size. Episternal sulcus incomplete, not evident between subalar fossa and hypersternaulus; hypersternaulus rising obliquely posterad; hind tibia with a series of spines posteriorly. (Terminology)
Larvae feed on aphids
Life Cycle
Usually 2 generations a year, the second generation overwinters as prepupa. Regardless of season, pupal stage lasts ~3 weeks.
Females nest in hollow twigs of roses, cranberries, etc. They stock the nest with paralyzed aphids and build walls made of chewed pith between cells.
Internet References