(Indianapolis, In, USA) Have found these randomly in our home the past few years, maybe 12ish. Just as often during the day as night and have not moved fast (due to fear?? or always slow moving bug?). Found most on ground floor crawling on floor, but twice upstairs (bathroom wall and in sons room in a cloth bag). Time of year has not been a factor that I can remember, as this one and another I found were just recently in the cold winter. The main body is about 1/2 to 3/4 an inch in length I think. I am very disturbed and would like to take the proper measures to help keep them out of my home, but need to know exactly what it is!
It is hard to ID to species without personally seeing the insect, but my guess is the American cockroach. It also looks a little like an Oriental cockroach.
Have you seen any with wings?
Usually cockroaches are active at night and move fast. If you came into the room and turned the light on perhaps that is why they are moving slow…not sure otherwise.
American cockroaches develop slowly…it can easily take well over 1yr to 1 1/2 yrs to go from egg to adult. The photo here looks like a nymph and from the size you say it is half grown.
Cockroaches like to eat all kinds of food, grease, garbage, cotton, wool, cardboard, glue and crumbs of all kinds. Sanitation is the first line of control. They live in sewer in big cities and move from house to house thru and cracks or crevices. Even clean homes can have a few come in. Next, there are baits and sticky traps to catch the roaches. These can be found at hardware or similar type stores.
If you know where they are coming from or where most of them live you can sprinkle diatomaceous earth which cuts into their skin and they dry up – follow label directions.