Found these two marks on my wall today. Have yet to find any bugs or other markings like this anywhere. When I rubbed it, it smeared not sticky consistency but more like wet chalk .
http://tinypic.com/r/2gxrbso/8
http://tinypic.com/r/2q07yvn/8
http://tinypic.com/r/21az9fs/8
Not sure what the two bottom pics are? The last one is hard and round
Thank you