Ischnus inquisitorius atricollaris
(Walsh, 1873)
Ischnus inquisitorius atricollaris is a of ichneumon in the Ichneumonidae. It was first described by Walsh in 1873. The subspecies is distinguished from the nominate form by its dark collar marking. It belongs to a of wasps whose members attack wood-boring larvae.
Pronunciation
How to pronounce Ischnus inquisitorius atricollaris: //ˈɪs.nəs ɪnˌkwɪ.zɪˈtɔːr.i.əs ˌæ.trɪ.kəˈlɛər.ɪs//
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Identification
Distinguished from Ischnus inquisitorius inquisitorius by the presence of a dark collar marking. As with many ichneumonid , precise identification requires examination of subtle color pattern differences and may need confirmation.
Habitat
Associated with woodland and forested areas where larvae occur in dead or dying wood.
Distribution
Documented from Belgium (including Brussels-Capital Region, Flemish Region, and Walloon Region) and Calgary, Canada. The disjunct distribution suggests either widespread occurrence with limited sampling or possible introduction events.
Host Associations
Ecological Role
of wood-boring beetles, contributing to natural of these forest insects.
Similar Taxa
- Ischnus inquisitorius inquisitoriusNominate ; distinguished by absence of dark collar marking.
- Other Ischnus speciesRequire examination of wing venation, color patterns, and other subtle morphological features for separation.
More Details
Taxonomic note
This was described by Benjamin Dann Walsh, an early American entomologist known for his work on insects of the Midwest. The description dates to 1873.