Ground beetle

6952.      I have been seeing many insects like this since over 2 weeks in my home. This morning I seem to have rolled over one in my bed and it bite me under my tigh and the bite woke me up. I saw it escape quickly in my bed sheets before I killed it. It is about 10 mm long and between the antennas it has small claws like contraptions on the top of its head if you look carefully… What is this insect?? Alma, Quebec. Canada

Number 6952. This is a ground beetle (Coleoptera: Carabidae). These are general predators on other small arthropods, mainly other insects. If this is what bit you, it was strictly reflexive on its part, and the bite is harmless. Click here for more detailed information.