What is the evolutionary tactic of Achroia grisella hypothesized to rely on instead of extreme hearing?

Quicker reflexes or lower-intensity pheromone signaling for mating

The two dominant wax moth species, while facing similar general threats such as predation, have pursued divergent evolutionary paths for survival. While *Galleria mellonella* invested heavily in developing extreme auditory detection of bat echolocation, the smaller *Achroia grisella* does not display this same specialized hearing adaptation. This divergence suggests that due to its smaller size and different flight characteristics, *A. grisella* adopted alternative defense mechanisms. Potential alternative strategies include possessing quicker reflexes enabling faster escape response times, or relying on mating strategies that use pheromone signaling at lower intensities to remain less conspicuous to predators that might also be sensitive to chemical cues.