Common Symptoms. The first thing to do if you suspect you have an infestation is to know what they look like. The adults are brown and sort of round shaped, flat and about a quarter of an inch in length. When they have had your blood for dinner they are a dark-red color and increase in size to about three eighths of an inch.
Bed Bug Life Cycle. The next stage is the first instar nympth, also about 1.5mm long and almost transparent until the first feeding. They are very difficult to see at this stage of development. The third stage of the bed bug's life cycle is the second instar nymph at 2mm long. Third stage is 2.5mm, fourth is 3mm,
I ended up finding (what I believe to be) about 8 bugs in total; a couple that were vacuumed up as noted above, and then a couple on the floor by my bed and on the floor in my brother in law's room. They all seemed to be at different life stages, but I have not yet confirmed with a professional. I was able to save 4 bugs.
Early Detection. The detection of bed bugs can be very difficult and bed bugs can easily go undetected during an inspection particularly during the early stages of an infestation when only a few bugs or eggs are present. Even the most qualified inspector will be challenged when the entire infestation consists of only one or two bed bugs
Bed bugs go through several stages of life until they reach adulthood. First is the egg, which looks like a milky white grain of rice. After about two weeks, the eggs hatch and the nymphs emerge, ready to feed from day 1. The nymphs must go through five molting stages before they reach adulthood, and they cannot molt without a blood meal.
Bed Bug Behavior and Habit. Understanding the behavior of bed bugs (how they eat, live, and reproduce) will help you to find an infestation before it becomes established and to monitor for the presence of bed bugs after your home has been treated.