Great! You may want to confirm this result by collecting more images and/or examine with alcohol washing. The colony may be of interest for breeding resistance.
Depending on time of season this may be ok. Note the colony for further evaluation.
Plan for treatment, monitor closely.
You may want to act soon! This is a threshold!
There is danger! This colony is in jeopardy and may be a source of reinvasion in your neighborhood. Act immediately.