Insect and Spider Identification: What kind of flying insect is this. Please help!!!!, 0 by VREXRIDER1

VREXRIDER1 wrote:
These very small flying insects coming into my sister\'s house in Santa Fe,NM during the late afternoon. They are only a few millimeters long and wide. They swarm the windows and crawl on everything. They are so small they are difficult to kill. They do fly around the house. By the morning you can find hundreds dead on the floor. My sister bought Raid Window Fly Traps and that seems to work somewhat but there are so many coming in the traps are overwhelmed. Can someone please i.d. these bugs. THANK_YOU!!!!