''Sirex cyaneus'' (blue horntail) is a species of

horntail Horntail or wood wasp are any of the 150 non-social species of the hymenopteran family Siricidae, a type of wood-eating sawfly. The common name "horntail" derives from the stout, spine-like structure at the end of the adult's abdomen, which is u ...

in the genus ''

Sirex ''Sirex'' is a genus of wasps in the family Siricidae, the horntails or wood wasps. They inject eggs with fungal endosymbionts into wood. The fungus is contained in a mycangium which nourishes it with secretions, and in turn it digests wood for ...

''. Native to forests in

Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...

, they grow to 2 cm in length.''Sirex cyaneus'' (Siricidae) - blue horntail (woodwasp)
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References

Siricidae Insects described in 1781 Hymenoptera of North America {{Sawfly-stub