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For Insects, Spiders & Their Kin
For the United States & Canada
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Family Scoliidae - Scoliid Wasps

Digger wasp / Scolia dubia - Scolia dubia Bee or Wasp? - Campsomeris tolteca Double-banded scoliid - Scolia bicinta - Scolia bicincta - male Sleeping Wasp ? - Scolia bicincta Bee of Some Kind? - Campsomeris plumipes Crioscolia alcione?? - Crioscolia alcione A 2 Fer (Wasp & Spider) - Scolia nobilitata Apoid Wasps (Aponidae) ID Please - Scolia nobilitata
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)
Superfamily Scolioidea
Family Scoliidae (Scoliid Wasps)
Other Common Names
Flower Wasps, Mammoth Wasps, Scarab Hawks, Scarab Hunters
Explanation of Names
See Scolia
~20 spp. in 5 genera in our area(1)(2) (Campsomeriella annulata and Micromeriella marginella modesta were introduced to control the Japanese beetle but did not become established)
20-50 mm
Robust, hairy, medium-sized to large
Wings with longitudinal wrinkles towards the apex
Mesosternum and metasternum divided by a transverse suture
Hind coxae well-separated
in NA, most diverse in the south
Fields, meadows, lawns (searching for hosts).
Larvae are parasitoids of ground-dwelling scarab grubs, esp. Phyllophaga; adults take nectar
Life Cycle
Female digs down to the host grub, stings it, and lays an egg on the paralyzed grub(3)
See Also
Male Mutillidae (wings not wrinkled)
Print References
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.U. of Florida and Dep. of Agriculture Website
3.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.
4.The Scoliidae of California
Hurd P.D. 1952. Bull. Calif. Insect Survey 1(6): 141-152.
5.Scoliid Wasps of the Southwestern United States
MacKay W.P. 1987. Southwestern Naturalist 32(3): 357-362.