Lebia subgrandis
Madge, 1967
Lebia subgrandis is a in the , to Mexico and found in North America. This has been investigated as a potential agent for the (). are of CPB and early , while first instar larvae are specialized of CPB and . The species exhibits a notably narrow range, refusing alternative even when starved.
Pronunciation
How to pronounce Lebia subgrandis: /ˈle.bi.a sʌbˈɡræn.dɪs/
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Habitat
actively seek in soil, where they locate and . forage on vegetation where host occurs. Specific vegetation or climatic preferences beyond host association are not documented.
Distribution
to Mexico; recorded from North America. Investigated for potential use in the northeast United States, though establishment status there is unconfirmed.
Diet
() and 1st through 3rd (); CPB and (first instar larvae, as ). Adults refuse alternative including Coleomegilla maculata, Oplomus sp., and even when starved.
Host Associations
- Leptinotarsa decemlineata - / on and ; larvae are of and
Life Cycle
First are with an average lifespan of 8.3 days. lifespan is 4-5 months. Reproductive output is temperature-dependent, with early-summer females producing more offspring than late-summer females.
Behavior
forage both diurnally and nocturnally. First actively search for in soil. Mating appears infrequent; rates showed no difference when females were confined with males for varying durations (0-3 days versus entire experiment). Adults exhibit strong fidelity, maintaining narrow host range under confinement.
Ecological Role
Specialized and of . Potential agent, though efficacy limited by narrow range and specific larval host-seeking requirements.
Human Relevance
Investigated as a candidate agent for management in potato , particularly in the northeast United States. Not known to be established as an biological control agent.
Similar Taxa
- Other Lebia speciesMany Lebia are colorful foliage attracted to lights; L. subgrandis distinguished by specific association with and documented range testing
- Chlaenius tricolorBoth are vivid metallic in ; C. tricolor is frequently attracted to blacklights and lacks the documented narrow of L. subgrandis