Pterocolus ovatus
(Fabricius, 1802)
thief weevil, leaf roll thief
Pterocolus ovatus is a small weevil known as the thief weevil or leaf roll thief. It is an obligate kleptoparasite that exploits the leaf nests constructed by the oak leaf-rolling weevil, Homoeolabus analis. The is found in North America, with records from the United States and Canada.
Pronunciation
How to pronounce Pterocolus ovatus: //ˌtɛrəˈkoʊləs oʊˈvɑːtəs//
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Distribution
North America, including the United States and Canada (Ontario). Records from Florida are documented.
Diet
Obligate of Homoeolabus analis; consumes eggs within the 's constructed leaf nests.
Host Associations
- Homoeolabus analis - kleptoparasiteP. ovatus is an obligate nest thief and of this oak leaf-rolling weevil
Behavior
Kleptoparasitic; infiltrates leaf rolls constructed by Homoeolabus analis to consume . This obligate relationship represents a form of nest usurpation.
Ecological Role
Specialized kleptoparasite; has minimal direct impact on oak plants due to its narrow dependence on the leaf-rolling weevil rather than the plant itself.
Human Relevance
No significant economic or agricultural impact; management is generally unnecessary due to minimal effects on plants.
Similar Taxa
- Homoeolabus analisP. ovatus is frequently found in association with H. analis due to its kleptoparasitic dependence, but can be distinguished by its parasitic and likely smaller size within the 's leaf nests.
More Details
Taxonomic note
Pterocolus ovatus has been classified in both Attelabidae and Rhynchitidae depending on taxonomic treatment; current sources list it in Attelabidae, Pterocolinae.
Kleptoparasitic specialization
The represents a highly specialized ecological strategy, having evolved complete dependence on the nest-building of a single species.