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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

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

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Species Sphecius speciosus - Eastern Cicada Killer

Cicada Killer- -Up Close - Sphecius speciosus Cicada's worst nightmare - Sphecius speciosus Hornet? - Sphecius speciosus Eastern Cicada Killer - Sphecius speciosus Ground burrowing wasp - Sphecius speciosus Weird Hornet? - Sphecius speciosus Eastern Cicada Killer - Sphecius speciosus Unknown wasp-like - Sphecius speciosus
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
Tribe Bembicini (Sand Wasps)
Subtribe Spheciina
Genus Sphecius (Cicada Killers)
Species speciosus (Eastern Cicada Killer)
Other Common Names
Giant Cicada Killer (1) (2)
Synonyms and other taxonomic changes
Sphecius speciosus (Drury)
Orig. Comb: Sphex speciosus Drury 1773
Explanation of Names
specios - Latin for "showy", or "beautiful" (3).
4 spp. n. of Mex. (4)
30-50 mm, one of the largest North American wasps (5);
30-40 mm (1)
A very large wasp with distinctive pattern and behavior, widespread in east. Body black (or brownish) with reddish/orange legs, yellow marks on thorax and abdominal segments 1-3; wings dusky (6):
NM-FL-MA-MN / Mex (BG data)
forest edges, gardens, waste places; nests in the ground (7),
June-Sept (BG data)
Adults eat very little, nectar from flowers. Larvae eat cicadas.
Life Cycle
Females catch and paralyze cicadas, often in flight. Known to take members of at least five genera: Diceroprocta, Magicicada, Neocicada, Quesada, and Tibicen, with the last being a favorite (Encyclopedia of Life). If the capture is made low or on the ground, the female may climb a tree to use as a launching point to fly towards its burrow; if no tree available, the prey is dragged (2). Nest tunnels (typically 6 inches/15 cm deep, with a branch of similar length) are dug in areas of bare soil. Several females may cooperate in digging a tunnel, which will have 2-3 cells at the end (1). Burrow entrance is large, 2-3 cm, with a prominent mound of excavated soil adjacent (8). One or two cicadas, are placed in each cell, and an egg is laid on the last one placed (1). In 2-3 days after egg laying, a larva will hatch and begin eating the cicada, leaving an outer shell only within about two weeks; the larva will then spin a cocoon and hibernate. In the spring, the larva will leave its cocoon and pupate. The adult will dig its way out of the ground and look for a mate. Males die shortly after mating. Females die after laying all of their eggs.
Males emerge earlier than females and defend territories, typically 1 square meter or so of bare soil near their emergence hole. They usually perch on the ground and may occupy these territories for up to 12 days. They pursue receptive females that fly through the area. Rival males are attacked aggressively (9).
Images showing various aspects of behavior and life-cycle (male on territory, mating, prey capture, burrows, feeding on nectar):
Predators include birds, shrews, and mantids. Though fearsome in appearance, and armed with a powerful sting, females are reported to be loathe to sting humans. Males are armed with a "pseudo-stinger", a projection of the last abdominal sternite, and may jab with it (10), however they lack venom.
See Also

European Hornet - Vespa crabro

Katydid Hunter - Stizus brevipennis
Print References
Drury, 1837 (BHL link to original illustration, vol. 2 plate 38)
Eiseman and Charney, pp. 482-483 (8)
Evans, H.E., p. 251, fig. 122b (10)
Evans, p. 359 (5)
Marshall, photo 559.5 (11)
O'Neill, pp. 221-222 (9)
Swan and Papp, pp. 565-566, fig. 1228 (2)
White, p. 352 (7)
Internet References
Featured Creatures - University of Florida
Cicada-Killer - Prof. Chuck Holliday
Fact sheet - OSU
Works Cited
1.National Audubon Society Field Guide to Insects and Spiders
Lorus and Margery Milne. 1980. Knopf.
2.The Common Insects of North America
Lester A. Swan, Charles S. Papp. 1972. Harper & Row.
3.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
4.Ascher J.S., Pickering J. (2016) Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila)
5.National Wildlife Federation Field Guide to Insects and Spiders & Related Species of North America
Arthur V. Evans. 2007. Sterling.
6.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
7.A Field Guide to Insects
Richard E. White, Donald J. Borror, Roger Tory Peterson. 1998. Houghton Mifflin Co.
8.Tracks & Sign of Insects and Other Invertebrates
Charley Eiseman & Noah Charney. 2010. Stackpole Books.
9.Solitary Wasps: Behavior and Natural History (Cornell Series in Arthropod Biology)
Kevin M. O'Neill. 2000. Comstock Publishing.
10.The Wasps
Howard Ensign Evans, Mary Jane West Eberhard. 1970. University of Michigan Press.
11.Insects: Their Natural History And Diversity: With a Photographic Guide to Insects of Eastern North America
Stephen A. Marshall. 2006. Firefly Books Ltd.