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Sphecidae
	Ammophila pubescens
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Superfamily:	Apoidea
Family:	Sphecidae; (Latreille, 1802)
Subfamilies
	Ammophilinae; Chloriontinae; Sceliphrinae; Sphecinae

The Sphecidae are a cosmopolitan family of wasps of the suborder Apocrita that includes sand wasps, mud daubers, and other thread-waisted wasps.

The name Sphecidae was formerly given to a much larger grouping of wasps. This was found to be paraphyletic, so most of the old subfamilies have been moved to the Crabronidae.

Biology

The biology of the Sphecidae, even under the restricted definition, is still fairly diverse; some sceliphrines even display rudimentary forms of sociality, and some sphecines rear multiple larvae in a single large brood cell. Many nest in pre-existing cavities, or dig simple burrows in the soil, but some species construct free-standing nests of mud and even (in one genus) resin. All are predatory and parasitoidal, but the type of prey ranges from spiders to various dictyopterans, orthopteroids and larvae of either Lepidoptera or other Hymenoptera; the vast majority practice mass provisioning, providing all the prey items prior to laying the egg.

Phylogeny

This phylogenetic tree is based on Sann et al., 2018, which used phylogenomics to demonstrate that both the bees (Anthophila) and the Sphecidae arose from within the former Crabronidae, which is therefore paraphyletic, and which they suggested should be split into several families; the former family Heterogynaidae nests within the Bembicidae, as here defined.^[1] These findings differ in several details from studies published by two other sets of authors in 2017,^[2]^[3] though all three studies demonstrate a paraphyletic "Crabronidae."

Apoidea

Ampulicidae

Astatidae

Bembicidae

Sphecidae (sensu stricto)

	Crabronidae (sensu stricto)

	Mellinidae

	Pemphredonidae

	Philanthidae

Psenidae

	Ammoplanidae

	Anthophila (bees)

Family Sphecidae (sensu stricto)

A gold-marked thread-waisted wasp flying near blooming yellow ironweed.

A Sphecidae wasp, probably Sceliphron caementarium, investigates two squash bugs, but doesn’t attempt capture to provision its nest.

The old digger wasp family Sphecidae (sensu lato) was paraphyletic and has been broken up. Only the following subfamilies remain in the new family Sphecidae (sensu stricto) which is a monophyletic clade.^[1]

Subfamily Ammophilinae

Ammophila W. Kirby, 1798
Eremnophila Menke, 1964
Eremochares Gribodo, 1883
Hoplammophila de Beaumont, 1960
Parapsammophila Taschenberg, 1869
Podalonia Fernald, 1927

Subfamily Chloriontinae

Chlorion Latreille, 1802

Subfamily Sceliphrinae

Chalybion Dahlbom, 1843
Dynatus Lepeletier de Saint Fargeau, 1845
†Hoplisidia Cockerell, 1906
Penepodium Menke, 1976
Podium Fabricius, 1804
†Protosceliphron Antropov, 2014
Sceliphron Klug, 1801
Trigonopsis Perty, 1833

Subfamily Sphecinae

Chilosphex Menke, 1976
Isodontia Patton, 1880
Palmodes Kohl, 1890
Prionyx Vander Linden, 1827
Sphex Linnaeus, 1758
Stangeella Menke, 1962

Both of the historical definitions of the Sphecidae (a conservative one, where all the sphecoid wasps other than ampulicids and heterogynaids were in a single large family, and a more refined one, where the seven large sphecid subfamilies were each elevated to family rank) have recently been shown to be paraphyletic, and the most recent classification is closer to the refined scheme; there are now seven families in addition to the Sphecidae and Crabronidae, all of which were formerly placed within Sphecidae.

Family Crabronidae

All the other digger wasp taxa that were formerly included in Sphecidae (sensu lato) were placed in the family Crabronidae, which was itself paraphyletic, and recent classifications have split Crabronidae into a number of smaller families, mostly formerly treated as subfamilies.^[1]

References

^ ^a ^b ^c Sann, Manuela; Niehuis, Oliver; Peters, Ralph S.; Mayer, Christoph; Kozlov, Alexey; Podsiadlowski, Lars; Bank, Sarah; Meusemann, Karen; Misof, Bernhard; Bleidorn, Christoph; Ohl, Michael (2018). "Phylogenomic analysis of Apoidea sheds new light on the sister group of bees". BMC Evolutionary Biology. 18 (1): 71. Bibcode:2018BMCEE..18...71S. doi:10.1186/s12862-018-1155-8. PMC 5960199. PMID 29776336.
^ Branstetter, Michael G.; Danforth, Bryan N.; Pitts, James P.; Faircloth, Brant C.; Ward, Philip S.; Buffington, Matthew L.; Gates, Michael W.; Kula, Robert R.; Brady, Seán G. (2017). "Phylogenomic Insights into the evolution of stinging wasps and the origins of ants and bees". Current Biology. 27 (7): 1019–1025. Bibcode:2017CBio...27.1019B. doi:10.1016/j.cub.2017.03.027. PMID 28376325.
^ Peters, Ralph S.; Krogmann, Lars; Mayer, Christoph; Donath, Alexander; Gunkel, Simon; Meusemann, Karen; Kozlov, Alexey; Podsiadlowski, Lars; Petersen, Malte (2017). "Evolutionary history of the Hymenoptera". Current Biology. 27 (7): 1013–1018. Bibcode:2017CBio...27.1013P. doi:10.1016/j.cub.2017.01.027. hdl:2434/801122. PMID 28343967.