Agriotes sparsus
LeConte, 1884
Western Wireworm
Agriotes sparsus is a click beetle in the Elateridae, commonly known as the Western . The is native to western North America and has been recorded in British Columbia, Canada. Like other members of the Agriotes, the larval stage is a wireworm—a soil-dwelling pest that feeds on plant roots and tubers. The species is of agricultural concern due to its potential to damage crops.
Pronunciation
How to pronounce Agriotes sparsus: //ˈæɡri.oʊtiːz ˈspɑrsəs//
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Identification
Distinguished from the related lined click beetle (Agriotes lineatus) by distribution and subtle morphological differences; A. lineatus is a European not established in western North America. As a , the larva is elongated, cylindrical, and hardened, with a yellowish to brownish coloration typical of the . have the characteristic click beetle body form with a pronotum that tapers posteriorly and that are serrate or pectinate.
Habitat
Associated with soil environments in agricultural and natural settings. Larvae inhabit soil where they feed on roots and underground plant parts. are found in vegetation and soil surface .
Distribution
Recorded from British Columbia, Canada. Native to western North America.
Diet
Larvae feed on roots and tubers of plants; specific records for this are not well documented.
Ecological Role
Larval stage acts as a root-feeding herbivore in soil . May contribute to nutrient cycling through soil disturbance, though primarily recognized as an agricultural pest.
Human Relevance
Potential agricultural pest; larvae can damage crop roots and tubers. Detection in environmental suggests risk of spread through movement of soil-containing materials such as yard waste.
Similar Taxa
- Agriotes lineatusSimilar (lined click beetle/) and larval form, but A. lineatus is European and not established in western North America; distinguished by geographic origin and subtle morphological differences in .