A song species from western North America, ranging (at least) from the Pacific Northwest to southern California and SW Arizona.  Shown below is one SRU. In this species, the SRU is multisyllabic, consisting of 2-5 volleys of abdominal vibration; the last volley of the song is terminated by an unstructured “rumble.”  In a duet, the partners exchange these multisyllabic SRUs politely.  Songs of individuals from the southern part of the range exhibit longer volleys/duets than those of northern individuals, and the variation is clearly clinal in pattern.  Chrysoperla johnsoni forms a monophyletic clade with C. plorabunda and C. adamsi(see Henry et al. 1999 reference, given above)

For additional information, see Henry, C. S. 1993. Chrysoperla johnsoni Henry (Neuroptera: Chrysopidae): acoustic evidence for full species status. Ann. Entomol. Soc. Am. 86(1): 14-25.