Here`s a question that will make you laugh- `How do Death watch beetles mate`?

Hello puzzle

You and I think the question's funny, but in the past people found the
death watch beetles' mating habits creepy. The sinister noises in the
walls of the house seemed particularly noticeable when someone was
sitting up at night by a sickbed and so the sound became associated
with a 'death watch'.

"The adult males strike their heads against the wood as a mating call,
making sounds which can be heard on still nights."

Oxford Paperback Encyclopaedia
http://www.xrefer.com/entry/213942

They mate in the spring, either within the wood where they hatched or
after emerging from it.

Full description of reproduction for death watch beetles:
http://www.bodley.ox.ac.uk/dept/preservation/training/pests/watch1.htm

Hope this helps - do ask for clarification if necessary.

Regards - Leli

search used:
://www.google.co.uk/search?q=%22death+watch+beetle%22+mating+OR+reproduction&hl=en&lr=&ie=UTF-8&oe=UTF-8&start=0&sa=N

Many thanks, that is a great help.