Pristaulacus foxleei
(Townes, 1950)
Pristaulacus foxleei is a of aulacid in the Aulacidae, described by Townes in 1950. It is native to North America, with records from western Canada including British Columbia. Like other members of its , it is a wasp associated with wood-boring beetles. The species is one of approximately 32 aulacid species documented in North America.
Pronunciation
How to pronounce Pristaulacus foxleei: //prɪsˈtaʊləkəs ˈfɒksliːaɪ//
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Identification
Aulacid wasps are distinguished from superficially similar ichneumon wasps by three key characters: the attaches high on the back of the (not low as in ichneumons), there is a short "neck" behind the , and the ovipositor is downcurved at the tip and somewhat sinuous rather than straight. Females of Pristaulacus are generally larger than those of the related Aulacus. Specific diagnostic features for P. foxleei relative to are not documented in available sources.
Habitat
Associated with cut or damaged wood, including logging sites, slash piles, and freshly-cut logs. These situations attract wood-boring beetles that serve as . In western Canada, has been documented in forested areas with coniferous timber operations.
Distribution
North America; specifically recorded from British Columbia, Canada. The broader range within North America is not well-documented in available sources.
Host Associations
- Wood-boring beetles - Aulacid wasps as a group are of wood-boring larvae, particularly Cerambycidae (longhorned beetles) and Buprestidae (jewel beetles), and possibly Xiphydriidae (wood wasps). This relationship is established for the Pristaulacus but specific host records for P. foxleei are not documented.
Ecological Role
As a of wood-boring beetles, contributes to natural of these insects in forest . The presence of aulacid wasps indicates functional parasitoid- relationships in disturbed or managed forest .
Human Relevance
May be encountered by entomologists and naturalists at logging operations, sawmills, or sites with freshly-cut timber. Not known to sting humans; females use the ovipositor only for laying in wood.
Similar Taxa
- Pristaulacus fasciatusSimilar size, preference for cut wood, and distribution in North America. P. fasciatus occurs from eastern Texas and Nebraska eastward, with one record in New Mexico, and is not documented from the Pacific Northwest where P. foxleei occurs.
- Pristaulacus rufitarsisAnother North American with similar and , recorded from Colorado.
- Ichneumonidae (ichneumon wasps)Superficially similar body plan with long and extended ovipositor, but distinguished by low abdominal attachment on , straight ovipositor, and lack of the short 'neck' characteristic of aulacids.