They vary in size but depends on where they are in their life cycle.
Actual size black beetle bed bugs.
Adult bed bugs in general are.
Balloon like reddish brown and more elongated if fed recently.
About the size of an apple seed 5 7 mm or 3 16 1 4 inch long.
Bed bug life cycle bed bug biology naturally promotes infestation.
Some are black or dark enough to appear black when observed with the human eye.
Like many other beetles they are round or oval and convex like ladybugs.
Typically bed bug nymphs will be smaller than a fully fed adult bed bug.
Others might be mottled with spots of brown and black on a lighter background.
Adult bed bugs 5 7 mm or 3 16 1 4 inch about the size of an apple seed the life cycle of a bed bug includes multiple nymphal stages with the insects blood feeding between each nymphal stage.
Nymphs range from 1 3 mm to 4 5 mm.
On average though they appear about the size of an apple seed.
Long and brown with a flat oval shaped body if not fed recently.
Adult bed bugs can reach a size of about 1 4 inch long.
Their flat wide bodies look significantly bigger after they ve taken a blood meal so a bed bug s actual size varies depending on whether the pests have fed.
The average adult bed bug size ranges from 1 4 to 3 16 of an inch in length.