Odontocolon atripes
(Rohwer, 1913)
Odontocolon atripes is a of ichneumon in the Xoridinae. Members of this are recognized as of wood-boring beetles and Hymenoptera. The genus is distinguished in part by teeth on the hind . Females possess long ovipositors for drilling into wood to reach , while males lack this structure. This species is one of 23 Odontocolon species found north of Mexico.
Pronunciation
How to pronounce Odontocolon atripes: /oʊˌdɒntəˈkoʊlən ˈeɪtraɪpiːz/
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Identification
Distinguished from other ichneumon by teeth on the hind . Females can be identified by their long ovipositors. Separated from other Odontocolon by specific morphological details not fully documented in available sources; expert identification typically required.
Habitat
Associated with dead and dying trees, particularly those containing wood-boring larvae. Found in forested areas where suitable exists.
Distribution
North America; part of the 23 of Odontocolon found north of Mexico. Some Odontocolon species are holarctic in distribution, though specific range for O. atripes is not precisely documented.
Seasonality
active in autumn, particularly around deadfall and recently cut trees. This timing coincides with the availability of exposed wood-boring .
Host Associations
- Wood-boring beetles (Cerambycidae) - primary Larvae are external on living or pupae
- Hymenoptera - primary Some Xoridinae parasitize other Hymenoptera
Life Cycle
Female drills into wood with ovipositor to deposit on living . Larva hatches and lives as external on host, consuming it as it matures. Development may occur on or pupal stage of host. emerges from host's pupa.
Behavior
Females search for in dead and dying wood, using long ovipositors to access concealed larvae. Has been observed ignoring exposed beetle on wood surfaces, suggesting preference for hosts within intact wood. Males do not possess ovipositors and do not exhibit this wood-drilling .
Ecological Role
of wood-boring beetles, contributing to of these insects in forest . Part of the complex associated with dead and dying trees.
Human Relevance
Of minor direct importance to humans; contributes to natural of wood-boring beetles in forest . May be encountered by entomologists and naturalists investigating insect fauna of deadfall.
Similar Taxa
- MegarhyssaAlso ichneumon wasps with extremely long ovipositors for accessing wood-boring ; distinguished by lacking teeth on hind and belonging to different (Rhyssinae)
- Other Odontocolon speciesRequire expert examination for -level identification; share -level traits of hind teeth and lifestyle
More Details
Taxonomic context
One of 23 Odontocolon north of Mexico; placed in Xoridinae with three other genera, all of wood-boring beetles and/or Hymenoptera
Research history
identification facilitated by Bob Carlson, expert on Ichneumonidae who organized ichneumon pages at Bugguide.net