Virtual Exhibit on Canada's Biodiversity






back to order Coleoptera
insect database

Habitat
Adults: terrestrial
Immatures: terrestrial

Feeding Habits
Adults: phytophagous
Immatures: phytophagous

Size: 2 to 50 mm
Flight : strong flier

North American
Species:
885


Coleoptera Elateridae
Click beetles

Front Wings: hardened
Hind Wings: membranous
Mouthparts: chewing
Antenna Length: shorter than body
Antenna Shape: straight
Front Legs: unmodified
Hind Legs: unmodified

Special Characteristics: Click beetles are usually black or brown but sometimes brightly coloured. They are easy recognized by their characteristic shape; the body is elongated, usually parallel-sided, with rounded ends. The larvae are often shiny, slender and hard-bodied and are commonly called wireworms.

Comments: Their common name comes from the clicking sound that is made by a mechanism on the thorax of adults. These beetles use this mechanism to throw themselves into the air and right themselves when they are on their backs. Click beetles are commonly found under stones, on flowers and vegetation. The larvae are very destructive. They feed on newly planted seeds and the roots of beans, cotton, potatoes, corn and cereals. The larvae of some species are predaceous.

Species:
Alaus oculatus (Linnaeus)

Common Name:
Large-eyed click beetle

Distribution:
Quebec, Ontario

Comments:
Alaus oculatus is a large click beetle, between 23 and 45 mm long, found in deciduous and mixed woods.