Since stridulation is a characteristic of
‘active copulatory readiness’, Ch. biguttulus females do not show
‘passive readiness’ at all and the state of ‘primary rejection’ after
their imaginal moult is directly followed by ‘active readiness’.
However, enhanced reproductive motivation in the state of ‘active
readiness’ was not invariantly coupled to unselective acceptance of
any courting male since stridulating females were observed to
reject male mating attempts on several occasions. Similar
observations were made during previous studies with Ch.
biguttulus (Kriegbaum and von Helversen, 1992) and other species
(Haskell, 1958; Loher and Huber, 1964).