Friday, January 14, 2011

Sexton beetle (not for squemish)

 As previously mentioned I sometimes run a mothtrap and more than moths turn up,flies beetles,caddisflies, etc,etc.Last June as I worked one a beetle with an atrocious smell arrived ,being covered in small brown mites it didn"t look to wholesome either.

Sexton beetle (Nicrophorous humator )

I identified it as a sexton beetle, so called because it buries dead birds and rodents before laying its eggs on it.It buries them to deny access to other carrion feeding species .When the carcase is buried it injects it with strong antibiotic solutions to slow down decay,then lays its eggs.The brown mites also have a role ,they feed on fungi that might speed up the decay and so the beetle doesn"t seem to mind transporting them from foodsource  to foodsource.It is also unusual in that it remains until the grubs hatch and will cull the numbers if too many survive and threaten the survival of all.It has evolved a way of concentrating the smelly fluids of the corpse which it uses to deter anything which threatens it .
A.M Massie a reknowned beetle hunter was conducting a bug hunt in the New Forrest when he found the body of a dead tramp,"You take the feet I"ll take the head" he called to his companion,they shook the corpse over a sheet laid out for the purpose ,several beteeles fell out and these are still to be seen in the British Natural History Museum labeled "Dead tramp.New Forest.A.M Massie . 

1 comment:

  1. John your some man for the info brillant stuff fair play

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