Median Wasp

By Charlie August 1, 2007 No comments yet

Some weeks back I wrote that a visiting Hornet Vespa crabro seemed to have succeeded in driving away the two Median Wasps Dolichovespula media that had been coming to some stinky old Mango Chutney I was using as a "lure"(see Big and Beautiful - The Hornet for details).

I needn’t have worried, because within a few minutes of replacing the old chutney (which had been rain-watered down below a level it would be acceptable even for homeopathy treatment) with a table-spoonful of fresh the wasps were back - and they’d brought some friends (a few of whom seemed to be less "friendly" than the others!). How they arrived so quickly is a mystery to me because they don’t seem to have a nest in the garden so presumably weren’t "watching" for the food source to return - perhaps chutney aroma molecules just carry on the wind more effectively then I realise!

 


median wasp

 


median wasp

 

What strikes me about the above photos is how amazingly variable these wasps seem to be. If I was using the same criteria I do as a birder brought up to look for ever-smaller differences in closely-related species I’d be thinking that there had to be at least three species here (based on the variable amounts of yellow banding on the abdomen, and the absent/present red colouring on the head and thorax).

The hornet-like individual in the two photos below only seem to emphasise how different individual Median Wasps can be.

 


median wasp

 


median wasp

 

Sadly I haven’t seen the Hornet again: hopefully she didn’t just waddle off somewhere so full of fermenting chutney that she just lay down until she exploded in a shower of chitin, rotting mangoes, and carbon dioxide…


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About the Author

Charlie

Charlie

Charlie works for an airline and has birded all over the world for twenty years. He wants to be a writer, and thinks no-one would believe his life could be so charmed if he didn't take photos of as many of the birds he sees as possible. Blogging with 10,000 Birds fits his aims, needs, and insecurities perfectly. Really - do birders get much more fortunate than this?

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