Experimental evidence for female mate choice in a noctuid moth

Sexual signal evolution is shaped by whether only one or both sexes execute mate choice. When choice considered, the same signalling modality generally inferred for males and females. In noctuid moth Chloridea (Heliothis) virescens (Lepidoptera: Noctuidae), may be signallers responders, as emit a sex-specific pheromone. Male based on female sex pheromone, perceived via antennae, has been well documented. However, females choose partners their male pheromone are unknown. Since expected when vary in quality, we reared two different larval diets that affected size, which correlated positively with fitness. given choice, more mated larger than smaller males, these produced eggs larvae. Female was not absolute amount composition of Moreover, found antennaless readily intact females, indicating antennal sensory input required to mate. To determine make an active studied courtship behaviour detail observed determined outcome moving away from (avoidance) facilitating copulation abdominal bend (acceptance). Additionally, discovered tactile stimuli involved during courtship. Because interactions mediate contact-based (chemical) communication, also investigated putative components legs, but no differences between sexes. Together, our study first comprehensive investigation heliothine moth.