a) the name and identity of my new roomies (Sitophilus Oryzae or Rice Weevil)
b) the source of troubles, a packet of rice I had got a few weeks before as a souvenir from an Asian country, with hundreds of those little beasts in it.
All in all, there were about 700 to 800 weevils around. At the moment I catch about 20 a day, trend: downward.
I know this will sound cruel, but I intend to put them on a starvation diet.
Thanks for the photo, cpurrin1!