Occasionally, one finds an article outside of one's field of interest, yet requiring attention. This is one of those articles:
Řezáč M. The spider Harpactea sadistica: co-evolution of traumatic insemination and complex female genital morphology in spiders. Proc. R. Soc. B. Published online before print. April 29, 2009, doi:10.1098/rspb.2009.0104
Abstract available here.
This comes via Proceedings "B", the biological sciences journal of the Royal Society in London. (Not to be confused with the Caledonian institution of a similar name.)
Readers with reasonable short-term memory may recall a similar story regarding the mating practices of giant squids, referred to in a prior posting ("Rough sex at 40,000 leagues under the sea.")
Once again, allow me to state my great joy in being a mammal.
More available from the BBC: "Spider sex violent but effective."