Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Alaus oculatus - Eyed Click Beetle

Alaus oculatus - male First for me this year - Alaus oculatus Eyed Click Beetle - Alaus oculatus Some kind of beetle? - Alaus oculatus Eyed Click Beetle - Alaus oculatus New England insect - Alaus oculatus Eyed click beetle - Alaus oculatus Black and white beetle - Alaus oculatus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Elateroidea (Click, Firefly and Soldier Beetles)
Family Elateridae (Click Beetles)
Subfamily Agrypninae
Genus Alaus
Species oculatus (Eyed Click Beetle)
Other Common Names
Eyed Elater, Eastern Eyed Click Beetle
Size
25-45 mm
Identification
Large size, huge eyespots on pronotum distinctive.
Range
Eastern and central North America--widespread. South Dakota east to Quebec, south to Texas, Florida.
Habitat
Deciduous/mixed forests and woodlands
Season
Much of year in south. Spring-summer farther north? Most frequently seen in spring and summer.
Food
Adults may take some nectar and plant juices. Larvae are predatory, eating grubs of wood-boring beetles like cerambycids (longhorns).
Life Cycle
Eggs are laid in soil. Larvae predators of beetle larvae in decaying wood, especially hardwoods. Pupation is in unlined cell underground or in rotting wood. Adults come to lights.
See Also
Alaus myops. A. myops is more slender, has more mottled gray elytra (not shiny with white specks), smaller eyespots.
Print References
Dillon, p. 312, plate XXXII (1)
Milne, p. 565, fig. 186 (2)
Papp, p. 109, fig. 341 (3)
White, p. 173, fig. 40 (4)
Arnett et al. p. 197, fig. 476 (5)
Brimley, p. 165, lists occurence all year in North Carolina, most common February-June, notes association with oaks. (6)
Works Cited
1.A Manual of Common Beetles of Eastern North America
By Dillon, Elizabeth S., and Dillon, Lawrence
2.National Audubon Society Field Guide to Insects and Spiders
By Lorus and Margery Milne
3.Introduction to North American Beetles
By Charles S. Papp
4.Peterson Field Guides: Beetles
By Richard E. White
5.How to Know the Beetles
By Ross H. Arnett, N. M. Downie, H. E. Jaques
6.Insects of North Carolina
By C.S. Brimley