communicating species and follows a common pattern that has
initially been formulated by Loher and Huber (1964) on the basis of
their studies on G. rufus and studies of Renner (1952) on E.
brachyptera. The present study on Ch. biguttulus females provides
substantial evidence that their reproductive behaviour differs
considerably from this pattern (Fig. 5) which should be accounted
for the interpretation of behavioural, neurophysiological and
speciation studies performed with this species. Most importantly,
Ch. biguttulus females do not assume a state of ‘passive copulatory
readiness’, re-establish ‘active copulatory readiness’ after matings
and may copulate multiple times before their first oviposition.