The treatment of stings by neutralization is a myth. There are 63 compounds in bee venom and the do far more damage by a simple mechanism related to being acids.
Besides the venom is injected so washing the surface in an attempt to neutralize it is rather futile.
Bee stings are certainly acidic. However, even though the claim that wasp stings are basic is often repeated I can find no reliable information. I very much doubt wasp that it is true. Ants, bees and wasps are closely related and I expect their stings are quite similar.