(springville, utah) it is as long as a penny as you can see by the picture. looks like a ant/catepillar to me. but i am guessing a beetle larvae. 6 legs black head red middle and brown/ grey body. thank you so much moni for your help. today is july 3 2011 and i found it yesterday in the house.
Your insect is a snakefly larva. They do look similar to rove beetle larvae.
Snakeflies are in their own order – Raphidioptera.
The larvae live in soil or debris under bushes and shrubs. Both the adults and larvae feed on other insects. The larvae are known to feed on insect eggs as well. The adults prefer aphids,but will eat other arthropods. Adults have been known to clean themselves after feeding.
These insects are found mostly west of the Rockies.
The larvae have the unusual ability to run both forward and reverse. The adult female has a long ovipositor that looks like it could sting but it does not…they are harmless to humans.
These are an unusual insect…so glad you found one and sent in a photo!