Olesicampe
Förster, 1869
Olesicampe is a of containing at least 130 described . Species in this genus are of (: Symphyta), with documented associations to in the genera Pristiphora and Cephalcia. Several species have been as agents against larch sawfly and mountain ash sawfly pests in North America, where they have established successfully and achieved significant host suppression. The genus is to the Palaearctic region.
Pronunciation
How to pronounce Olesicampe: /ˌoʊliːsɪˈkæmpi/
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Habitat
Associated with forests and trees supporting ; specifically documented from larch (Larix spp.) and mountain ash (Sorbus spp.) stands.
Distribution
to the Palaearctic region. established in eastern Canada (Quebec, Newfoundland, Nova Scotia, New Brunswick), Maine (USA), and Manitoba. Documented from Denmark, Norway, and Sweden based on occurrence records.
Host Associations
- Pristiphora erichsonii - of larval stagelarch ; of O. benefactor
- Pristiphora geniculata - of larval stagemountain ash ; of O. geniculatae
- Cephalcia lariciphila - of larval stagelarch ; of O. monticola
Life Cycle
stages have been described for some ; development occurs within .
Behavior
Females search for and parasitize . Some exhibit rapid increase following establishment, with rates exceeding 80% near release points. Documented rates of approximately 50 km per year for O. geniculatae following successful establishment. Low and absence of hyperparasitism reported for some species.
Ecological Role
of pests; functions as a agent capable of suppressing to negligible levels. O. geniculatae introductions in Quebec and Newfoundland are rated as complete successes in .
Human Relevance
Used in programs against pests of forestry and ornamental trees. O. benefactor, O. geniculatae, and related were intentionally to North America to control larch sawfly and mountain ash sawfly. Establishment has resulted in persistent suppression of target pest , reducing economic and ecological damage to larch and mountain ash.
Similar Taxa
- Mesochorus globulator hyperparasite that attacks O. geniculatae in Quebec; distinguished by its role as a secondary rather than of .
More Details
Biological control success
Introduction of O. geniculatae to Quebec (1976–1978) and Newfoundland (1981–1984) represents one of the most successful programs for pests. -specificity and rapid capacity contributed to establishment across areas exceeding 1000 km in diameter within 15 years.
Taxonomic notes
Subgenus Holocremnus has been used for some (e.g., O. sp. nr. nematorum). The requires taxonomic revision; O. monticola was described as poorly known prior to its redescription from British specimens.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- OLESICAMPE GENICULATAE, A NEW PALAEARCTIC ICHNEUMONID PARASITE OF PRISTIPHORA GENICULATA (HYMENOPTERA: TENTHREDINIDAE)
- Olesicampe monticola (Hedwig) (Hymenoptera: Ichneumonidae) redescribed together with notes on its biology as a parasite of Cephalcia lariciphila (Wachtl) (Hymenoptera: Pamphiliidae)
- ESTABLISHMENT OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE) TO CONTROL THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE), IN NEWFOUNDLAND
- BIOLOGY AND INITIAL DISPERSAL OF OLESICAMPE (HOLOCREMNUS) SP. NR. NEMATORUM (HYMENOPTERA: ICHNEUMONIDAE), A PARASITE OF THE LARCH SAWFLY RECENTLY ESTABLISHED IN MANITOBA
- ESTABLISHMENT IN MAINE, NOVA SCOTIA, AND NEW BRUNSWICK OF OLESICAMPE BENEFACTOR (HYMENOPTERA: ICHNEUMONIDAE), AN INTRODUCED ICHNEUMONID PARASITE OF THE LARCH SAWFLY, PRISTIPHORA ERICHSONII (HYMENOPTERA: TENTHREDINIDAE)
- INTRODUCTION, PERMANENT ESTABLISHMENT, AND DISPERSAL IN EASTERN CANADA OF OLESICAMPE GENICULATAE QUEDNAU AND LIM (HYMENOPTERA: ICHNEUMONIDAE), AN IMPORTANT BIOLOGICAL CONTROL AGENT OF THE MOUNTAIN ASH SAWFLY, PRISTIPHORA GENICULATA (HARTIG) (HYMENOPTERA: TENTHREDINIDAE)