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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

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TaxonomyBrowse
Info
ImagesLinksBooksData

Subfamily Bembicinae

Bee or Syrphid? - Bicyrtes quadrifasciatus Wasp? Hymenoptera - Didineis peculiaris Bembix? Eastern cicada killer - Sphecius speciosus Eastern Cicada Killer - Sphecius speciosus Sand Wasp with Prey - Bembix Ancistrocerus? - Gorytes
Classification
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 (Apoidea)- traditional Sphecidae)
Family Crabronidae
Subfamily Bembicinae
Numbers
3 tribes in the subfamily, with ca. 280 spp. in 35 genera in our area(1) and ~1700 spp. in >80 genera worldwide(2)
Identification
Mesonotum almost always expanded laterally into laminae more or less overlying the bases of the tegulae, and the jugal lobe of the hind wing is shorter than the submedian cell; all except Bembicini have two apical spurs on the middle tibiae; forewings with three submarginal cells.
For keys and other detailed information see(3)
Food
Adults feed on nectar. Larvae are fed insects which the adults put in the nests: most species prey on Auchenorrhyncha but several species are kleptoparasitic on (steal from) other Bembicinae
Life Cycle
Ground-nesters
Remarks
Females are either solitary nest provisioners or brood parasites of other wasps. In the nest-provisioning species, each female digs one or more ground nests using mandibles and front legs (often armed with a row of stout rake spines called 'pecten').(4)
Works Cited
1.Ascher J.S., Pickering J. (2016) Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila)
2.Catalog of Sphecidae sensu lato
3.California Bembicine Sand Wasps
R. M. Bohart and D. S. Horning, Jr. 1971. Bull. Calif. Insect Survey 13, 49 pp.
4.The Sand Wasps: Natural History and Behavior
Howard Ensign Evans & Kevin M. O'Neill. 2007. Harvard University Press.