Horntail
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Horntails or wood wasps 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 structur
Eriotremex formosanus, F, side, Blount County, Tennessee 2013 02 05 14.27.09 ZS P Max
Sirex noctilio ("Sirex woodwasp") from New Zealand, on Pinus radiata. The spiral groove on the ovipositor is visible.
Giant horntail (Urocerus gigas)
Eourocerus anguliterreus holotype fore-wing (counterpart). Ypresian Klondike Mountain Formation
Tremex columba
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Tremex columba, also known as the pigeon tremex or pigeon horntail, is a species of horntail that is native to eastern and western North America.
Horntail
…one due to mimicry. A typical adult horntail is brown, blue, or black with yellow or red parts, and may often reach up to 4 cm (1.6 in) long. The pigeon horntail (Tremex columba) can grow up to 5 cm (2.0 in) long (not counting the ovipositor), among the longest of all Hymenoptera. This family was formerly believed…
Horntail wasp or wood wasp