Article · Wikipedia archive · Last revised Jul 11, 2026

Syntexis libocedrii

Syntexis libocedrii, is the only living species in the wood wasp family Anaxyelidae, within the Symphyta, though the family has an extensive Mesozoic fossil record. This species is thus a "living fossil". It has the remarkable behavior of greatly favoring ovipositing in recently burnt incense-cedar (Calocedrus), red cedar (Thuja) or juniper (Juniperus). The wood is often still smoldering while the wasp is laying its eggs, and the larvae develop in the wood. S. libocedrii occurs from the mountains of central California to southern British Columbia, but is very rarely seen, except by firefighters.

Last revised
Jul 11, 2026
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Syntexis libocedrii
Adult female from Oregon1
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Hymenoptera
Superfamily: Siricoidea
Family: Anaxyelidae
Subfamily: Syntexinae
Genus: Syntexis
Species:
S. libocedrii
Binomial name
Syntexis libocedrii
Rohwer, 1915

Syntexis libocedrii, (also called the cedar wood wasp or incense-cedar wood wasp) is the only living species in the wood wasp family Anaxyelidae, within the Symphyta, though the family has an extensive Mesozoic fossil record.2 This species is thus a "living fossil". It has the remarkable behavior of greatly favoring ovipositing in recently burnt incense-cedar (Calocedrus), red cedar (Thuja) or juniper (Juniperus). The wood is often still smoldering while the wasp is laying its eggs, and the larvae develop in the wood.3 S. libocedrii occurs from the mountains of central California to southern British Columbia, but is very rarely seen, except by firefighters.

References

References

  1. Seltmann 2004, p. 396
  2. "Syntexis libocedrii Rohwer, 1915". GBIF. Retrieved 2019-06-01.
  3. Schiff, N.M. (December 2000). "Insects associated with forest fires in Northern California and Oregon". Entomological Society of America meeting. Montreal.
Bibliography

Bibliography