Insect and Spider Identification: Black & red bugs taking over our garage! Help identify pls, 1 by ChelleBene

ChelleBene wrote:
We are building a new garage and after installing the siding noticed these primarily black bugs with red strips all over our siding. They climb all over it and leave an orange colored residue on the siding. At first I thought they were attracted to the new smell of the siding, but they have not gone away and are multiplying like crazy. Their babies look like little red spiders. Please help me to identify these bugs and find a way to get rid of them.
Thank you so much for the help!