Figure 3.

Average ± SE egg production during an 8 week period after cold treatment in C. lectularius experimental populations consisting of three males, three females and six fifth‐instar nymphs. Initial individuals were allowed to feed each fortnight for a total of four feedings, while their offspring were able to feed 0–3 times depending on when they hatched. Also shown is hatching success (number of nymphs divided by number of eggs) in percentage and moult per nymph (number of moults divided by number of nymphs) as a measure of progeny development. Only treatments with enough surviving adults after cold treatment to make four or more boxes are shown (N = 4–16 boxes). Other treatments are marked as not applicable (na). An asterisk (*) denotes a significant difference in treatments compared with the control treatment of 22 °C (Holm–Sidak method, P < 0.05, or Dunn's method, P < 0.05).