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



Species Sphecius grandis - Western Cicada-killer Wasp

Western Cicada Killer? - Sphecius grandis Western Cicada Killer? - Sphecius grandis Cicada Killer (Sphecius Grandis) - Sphecius grandis Oregon Hornet - Sphecius grandis Cicada Killer? - Sphecius grandis Western Cicada Killer - Sphecius grandis - Sphecius grandis It looks like a yellow and black vespid but has much vivid red as well - Sphecius grandis 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 (Apoidea sans Anthophila – Apoid Wasps)
Family Crabronidae (Square-headed Wasps, Sand Wasps, and Allies)
Subfamily Bembicinae
Tribe Bembicini (Sand Wasps)
Subtribe Spheciina
Genus Sphecius (Cicada-killer Wasps)
Species grandis (Western Cicada-killer Wasp)
Explanation of Names
Sphecius grandis (Say 1823)
adapted from (1)
Females: Punctation density in the middle of T1 & T2 is about the same in S. grandis (noticeably less dense on T2 than on T1 in S. convallis)
Males: Antennomeres II‒IV curved ventrally in S. grandis, look more bead-like (in S. convallis not curved, cylindrical)
Body more extensively yellow, exceeding T4 in 97% of specimens (in 99.7% of S. convallis specimens yellow doesn't exceed T4), although in some S. grandis the yellow markings on the last abdomen segments are faint.
w. US (WA‒CA to NE‒TX) to C. America(1)
Works Cited
1.Improved key to New World species of Sphecius (Hymenoptera: Crabronidae)
Holliday C.W., Coelho J.R. 2006. Ann. Ent. Soc. Am. 99: 793-798.