Want to come in? (and who am I?)

[Overread16 4]

I think I've got to dust a bit more as just today I've noticed that at least one bit of dust has evolved - its not just dust any more; its grown a wormy middle!

http://farm7.static.flickr.com/6093/6334554357_8770ed6ab8_o.jpg

http://farm7.static.flickr.com/6211/6335309790_0d01be6e6f_o.jpg


Ok so no prize winning shots by any stretch and I really need to get myself some kind of houseplant or something cause the shiny desk surface tends to be a bit -- well - of a pain to work on. But a very tiny (these shots varying between 5 and 4:1 magnification) and I've no idea what it is - or what it grows into! I can' appear at both ends of its little house it carries with it (up the wall when I last saw it).