Everyone knows the Beatles were good singers. But beetles?

It turns out that the invasive coconut rhinoceros beetle has a characteristic chirp, or several.

And University of Hawaii scientists are studying those sounds as a possible way of tracking the destructive pests, which migrate only at night.

“Stridulation, or chirping, sounds produced by the beetles have been reported with respect to mating and aggressive male behavior, and while previous studies proposed the mechanism and reported on some preliminary acoustic recording of the chirps, the chirp characteristics have not been examined extensively,” UH scientist John Allen said in a recent release.

Allen presented his findings in Honolulu during a recent joint meeting of the Acoustical Society of America and the Acoustical Society of Japan.

Allen and his team combined acoustical, high-speed optical and infrared camera measurements to determine mechanisms of sound generation for adult male and female beetles, as well as larvae. They found a novel harmonic structure not previously reported and created a spectrogram of a distress chirp.

The chirps, and harmonics that appear, can indicate behaviors ranging from distress to aggression, they said.

The coconut rhino beetle, which can grow up to 3 inches long, has plagued Hawaii since 2013.