behaviour of crepuscular and nocturnal species behaviour of male and virgin female IDOMAL:0002394 IDOMAL:0002394 The behaviours of male and virgin female mosquitoes relate principally to mating and feeding on plant juices. Flight periodicities recorded in the laboratory for four species were characterized by bursts of activity at dusk and, to a lesser extent, dawn with scotophase activity present or not, according to species. idomal_namespace