Jools, Liz, you are my heros!  I've been using Autan (which is excellent for repelling flies and most other insects) but in the early evening I like to go in the garden and pull a few weeds.  Unfortunately the 'Moscas Negre' can't read too well and don't understand that Autan is supposed to repel them - resulting in swarms of the damn things eating me - most unpleasant!

Well, Tracey bought a bottle of the 'Natural Honey' Locion Hidrante (white bottle, red label) from Sabeco - tonight bliss!  Not only I didn't get bitten - I never even saw a single 'Mosca Negre'!  It works better than I could ever hope.

Also, as nobrot says, the 'After Bite' pen is excellent - the wasps are somewhat stealthy - they build nests in any small space they can find - and guard them well!  They are so quick you have little chance of avoiding them.  From painful experience, After Bite' certainly soothes the sting very quickly.

Nigel