- a, Bed-bug (Cimex lectularius, Linn.); newly hatched young from beneath; b, from above; d, egg, magnified 25 times; c, foot with claws; e, serrate spine, more highly magnified.
- a, Cast-off nymphal skin of Bed-bug (Cimex lectularius); b, Second instar after emergence from a; c, The same after a meal.
- Bed-bug (Cimex lectularius, Linn.).
The Cimicidae have the feet three-segmented and the forewings greatly reduced; most of the species are parasites on birds and bats, but one - Cimex lectularius (figs.