Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Sphecius grandis - Western Cicada Killer

A clearer image of one of the cicada killers - Sphecius grandis - male Western/Pacific Cicada Killer Wasp - Sphecius grandis Sphecius grandis - female Sphecius grandis - female Cicada Killer (Sphecius Grandis) - Sphecius grandis Unknown wasp? - Sphecius grandis Oregon Hornet - Sphecius grandis Western Cicada Killer - Sphecius grandis
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 grandis (Western Cicada Killer)
Synonyms and other taxonomic changes
Sphecius grandis (Say)
Orig. Comb: Stizus grandis Say 1823
4 spp. n. of Mex.
Punctation density in the middle of T1 and T2 is approximately equal in S. grandis see photo:

(noticeably less dense on T2 compared to T1 in S. convallis).
Antennal segments II-IV are curved ventrally (at the tyloids/ sensory organs) in S. grandis, the segments looking more bead-like:

In S. convallis antennal segments II-IV are not curved ventrally, and are tube-like.

Please see the key (internet link below) for complete information. (HW)
Western U.S. (CA-TX-NE-WA) / s. to C. Amer.
Adults feed on nectar. Females hunt cicadas to provision their offspring.
Print References
Holliday, C.W., and J.R. Coelho. 2006. Improved Key to New World Species of Sphecius (Hymenoptera: Crabronidae) - internet version; the complete paper (Ann. Entomol. Soc. Am. 99(5):793-798) can be downloaded as PDF from that site. (HW)