Lygus keltoni

Schwartz & Foottit, 1998

Lygus keltoni is a plant bug in the Miridae, recently distinguished from L. shulli. It is a documented pest of canola and alfalfa in western Canada, with laboratory studies confirming its parameters. The species occurs across North America from Canada through the western United States to Mexico.

Pronunciation

How to pronounce Lygus keltoni: /ˈlaɪɡəs ˈkɛltɒni/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Lygus keltoni was recognized as distinct from L. shulli in 1998. Within the Lygus, identification typically requires examination of male genitalia and other subtle morphological characters. The species is part of the Lygus complex that attacks field crops in western Canada. Distinguishing L. keltoni from other Lygus species in the field is difficult without taxonomic expertise.

Habitat

Agricultural , specifically fields of canola (Brassica napus) and alfalfa (Medicago sativa) in western Canada. The has been documented in crop systems rather than natural vegetation.

Distribution

North America: western Canada (Alberta, British Columbia, Saskatchewan), western United States (Arizona, California, Colorado, Idaho, Montana, New Mexico, Oregon), and Mexico (Coahuila). GBIF records indicate presence in the Western Nearctic region.

Diet

Feeding habits inferred from associations: documented on canola and alfalfa. Specific feeding mechanism (phloem feeding, seed feeding, etc.) not explicitly described in available sources.

Host Associations

Brassica napus - canola, western Canada
Medicago sativa - alfalfa, western Canada

Life Cycle

incubation lasts approximately 10 days at 25–27°C. Nymphal development: instars 1–4 last 2–3 days each; fifth instar lasts 4 days. Total nymphal development approximately 12–15 days under laboratory conditions. longevity: males average 34 days, females average 48 days at 25–27°C. Females have a 7-day pre-oviposition period followed by approximately 4 weeks of reproductive activity.

Behavior

Laboratory-reared show extended longevity compared to some . Females produce an average of 133 nymphs (maximum 306) during their reproductive life. All behavioral observations based on laboratory studies at 25–27°C; field patterns may differ.

Ecological Role

Pest in agricultural systems, specifically as a component of the Lygus complex affecting canola and alfalfa production in western Canada. Reproductive potential is lower than L. hesperus and L. lineolaris based on comparative laboratory studies.

Human Relevance

Agricultural pest of canola and alfalfa in western Canada. Part of the broader Lygus pest complex requiring management in field crop systems. No specific data or management recommendations for this alone were found in sources.

Similar Taxa

Lygus shulliL. keltoni was previously confused with and recently distinguished from L. shulli; morphological similarity requires taxonomic expertise for separation
Lygus hesperusSimilar parameters and comparable nymphal development times, but L. keltoni has lower reproductive potential
Lygus lineolarisSimilar parameters and comparable nymphal development times, but L. keltoni has lower reproductive potential

More Details

Laboratory Rearing Conditions

All data derived from laboratory studies conducted at 25–27°C. Field may differ substantially from laboratory parameters.

Taxonomic History

Recognized as distinct from L. shulli by Schwartz & Foottit in 1998, highlighting recent taxonomic refinement in the Lygus.