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entomophagous parasite

1 This is a hyperactive bug that I never has a change to get close for a photo until today I sported it slow down its movement with a big pray
2 The cockroach was still alive. Seem two of them are fighting but a close look was not. The cockroach is alive with no sign of damages on the body and I could see very clearly the coach roach legs were walking well.
3 As the Emerald Cockroach Wasp or jewel wasp (Ampulex compressa) move backward the cockroach follow suit in the same direction with not struggle at all. Several times the bug flew away (because my camera got too close) but return at the exact spot within 10 seconds.  During this time this cockroach victim could easily except, but it didn't.
4 On the way  they passed through a couple of gaps then across a couple of time a coiled garden hose that blocked their way.  All the while the cockroach has been very coordinating the march.
5 I tried many time to catch an image of close up of the head to head. But either out of focus or the wasp flew away for a moment for I intrude too close. Now up the pole they go and I knew in a few seconds the will be distanced above and away for me to capture further photos.....I must do something.
6 There is a big gaps between two woods and inside the two insects took short moment to rest as I waited anxiously thinking whether they would come up again or not. There was a nylon string around and an old nail nailed on the wood at the right position for me to do something...
7 Look ! I tied up her 'cow'... just to delay for a last few precious moment shoot.  During these 15 minutes I managed to get a few rear and precious close up images in the insect world.  See next page.
8 I released the cockroach........ and both disappeared somewhere above the wooden building.


The cockroach does not run away instead obediently allows the jewel wasp to seize him by the base of the left antenna and lead him back to her burrow to meet his fate.

The jewel wasp is too light weight  to carry and fly off with cockroach. Instead this wasp drives the cockroach victim to her den by pulling one of the antennae with the mouth part and the two powerful dark jaws.

The emerald cockroach wasp (Ampulex compressa) is a parasitoid solitary wasp of the family Ampulicidae.

Her unusual reproductive behavior involves disabling a live cockroach and using it as a host for her larva.

Jewel wasp first stings a cockroach in the brain to take away its escape reflex and then steers it to her burrow and lays eggs on it. With it's escape reflex disabled, the cockroach will just rest there while the wasp larva burrows into it's body, eats it internal organs and then pupates inside the cockroach's body.


INDEX : Insects     August 13, 2020 11:48:10 AM