Assassin Bug Nymph

5926   Returned this weekend to my daughters apartment and found this alive on the floor of the laundry room. It was full of dust. Tried to clean dust off as much as possible. She lives in a basement apartment of a house in Northern Ontario. Had bites on ankles, now legs, and abdomen. Can you help me identify this? And how to rid of them?   Thank you.   Ed.

This is a nymph of Reduvius ersonatus, a peridomestic species of assassin bug (Hemiptera/Heteroptera: Reduviidae) known as the masked hunter – see no. 5925 below.  Ed Saugstad, retired entomologist; Sinks Grove, WV.