Tuesday, September 2, 2008

BIG BUG!!!!! (Not to be confused with my "Bug")

My friend found this bug on the front of our house. I thought that we left all the "BIG" bugs out west! I did a little research and actually found how interesting this bug really is! and absolutley harmless. I inherited my intrigue of nerdiness from my dad, so this post is for him. Although I am sure he already knows about this unique special bug!
Found this online here:
"Although the ovipositor of the giant ichneumon wasps is quite long, don't let it intimidate you -- these wasps do not have poison glands like other stinging Hymenoptera and they are not inclined to stab you with it either. What they can do with their ovipositor is pretty amazing however. The females of these wasps wander over the surfaces of logs and tree trunks tapping the surface with their antennae. When a female wasp senses that there is a host larva inside the wood, she starts to drill down to it with her ovipositor. To do so, she must first lift the abdomen high into the air until the tip of the ovipositor touches the bark surface of the wood. Her drilling organ moves in a circular motion, supported by two slender guides that separate from the ovipositor and form an expanding loop as the ovipositor penetrates deeper into the solid wood. When the ovipositor is fully inserted into the wood it touches a host larva and she then lays an egg through a narrow gap in the ovipositor. After the egg hatches, the young ichneumon wasp larva feeds on the horntail larva and then pupates in the wood. The adult ichneumon wasps must chew a tunnel to the outside in order to emerge. Adult males are attracted to the sound of wood being chewed, and sometimes a group of several males will gather around the source of the sound waiting to see if the emerging insect is a female ichneumon wasp. If it turns out to be another male, or a woodboring beetle, the male wasps loose interest and fly away. If an adult female emerges, one of the males quickly mates with her before she has a chance to fly away. (Of course the male wasps are easy to recognize because they have smaller abdomens than the females and lack the long ovipositor!) "
Picture of a GIANT ICHNEUMON ovipositing (laying her egg in the wood)

2 comments:

Nathan Goodson said...

That is fascinating! I have never seen one of those wasps before. I wonder what there regional boundaries are. Lucky females have the longer 'positor!

Tammy said...

literally my mouth dropped. :o
and strangely it reminded me of the singles ward, lol.