The message
from Dave contains these words:

Aside from the usual mosquito larva over the last three weeks or so my
water-butt has become full of little red worms thingys about half an
inch long. Now I like seeing wildlife as much as anyone but, well they
look so disgusting my first instinct was to wreak death and
destruction on the lot of them. However as they may well think the
same about me I'm just curious to know what these fellows are. Any
ideas??

Bloodworms, much beloved of fishermen as groundbait - well, waterbait.
Quite harmless, they grow into frail mosquito-like insects (Chironomus
....) which do not play at vampires.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
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