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Chrysoperla zastrowi song graphs

Chrysoperla zastrowi song graphs

Lacewings “sing” songs by vibrating their abdomens above a leaf or twig, which sends reverberations along that substrate. Either the male or female will start and the other will join in—called “duetting.” If they are singing the same tune, they’ll copulate. And every species has its own tune. (For more examples, see "The Cryptic Song Species of Chrysoperla," a web page hosted by Charles Henry, Ph.D., emeritus professor at the University of Connecticut.) Shown here are oscillographs (lower of each pair of traces) and sonographs (upper traces) of a solo vibrational song recorded from (a) a specimen of the Chrysoperla carnea-group collected in Bangalore, India; (b) a specimen of the C. carnea-group collected in Blythe, California; and (c) a specimen of the C. carnea-group collected near Guatemala City, Guatemala. (Image originally published in Mandese et al 2021, Annals of the Entomological Society of America)

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