Much insect sounding is beyond the limits of typical human hearing ability. This sonic separation is exacerbated by a socialized narrative of fear and avoidance of insects in many western societies. With the use of audio technologies to expand our senses, we can embrace opportunities to get to know sensory and communicative insect sound-worlds beyond our own. Ecological sound art – sound art that has an environmentalist intent – is a tangible and accessible means of listening to these sounds. In (...) the series Built Hidden Soundscapes, the primary author (Schonberg) composes imagined soundscapes existing solely of sounds that are beyond the limits of typical human hearing ability. In this article we introduce two compositions in this series, Reserva Florestal Adolpho Ducke and Pipeline Road. These compositions offer a temporary expansion of our aural senses that can increase listeners’ awareness of cryptic insect existences/ecologies. We suggest that this listening practice might prompt future auralization (sounding or hearing in the mind) of insect sound for the listener. (shrink)