Ichneumon Wasp
The "tail" is the ovipositor.
It's not a stinger, it is an ovipositor. It is used to lay eggs inside stuff, like its victim's skull.What tail - you mean the stinger?
Ichneumon wasp species are highly diverse, ranging from 3 millimetres (0.12 in) to 130 mm (5.1 in) long. Most are slender, with the females of many species (particularly in the genus Megarhyssa) having an extremely long ovipositor for laying eggs. The female finds a host and lays an egg on, near, or inside the host's body.
It's not a stinger, it is an ovipositor. It is used to lay eggs inside stuff, like its victim's skull.
The ovipositor is coated with an anesthetizing compound. Human hosts may not realize that anything has laid eggs inside them until hatching. The only external symptom of implantation is a mosquito bite like reddening and swelling in the area of implantation.
Wasp killer is dermal-sorptive. Your hand is going to be impotent.Okay, so I sprayed it with wasp killer and it keeled over. Here it is in my hand and you can see those three "tails" (not stingers I've been corrected!). Pretty awesome piece of insect - no?
Wasp killer is dermal-sorptive. Your hand is going to be impotent.
It's not a stinger, it is an ovipositor. It is used to lay eggs inside stuff, like its victim's skull.
"Upon sensing the vibrations emitted by a wood-boring host, the female wasp will drill her ovipositor into the substrate until it reaches the cavity wherein lies the host. She then injects an egg through the hollow tube into the body cavity. There the egg will hatch and the resulting larva will devour its host before emergence"
"How a female is able to drill with her ovipositor into solid wood is still somewhat of a mystery to science, though it has been found that there is metal (ionized manganese or zinc) in the extreme tip of some species' ovipositors."
". . . the high metal concentrations are not limited to the female's ovipositor as the mandibles of the adult are also hardened with metals and it uses these to chew itself out of the wood."
http://upload.wikimedia.org/wikipedia/commons/e/e2/Dolichomitus_imperator_Oviposition_R_Bartz.jpg
Kill it before its too late.
What a fascinating insect. The fact that metals end up in the tip of ovipositor to aid in drilling is quite the adaptation. Thanks for the info.
OP, what state are you in where this insect was found?
Congratulations! You killed something that consumes just water and nectar as an adult! Hang onto that wasp killer as there may be some butterflies lurking around the corner!Okay, so I sprayed it with wasp killer and it keeled over. Here it is in my hand and you can see those three "tails" (not stingers I've been corrected!). Pretty awesome piece of insect - no?[/IMG]
Ichneumon Wasp
The "tail" is the ovipositor.
So giant versions of these things could penetrate even our best armored fighting vehicles and insert baby giant wasps? We're boned.