First record of male drumming call of the genus Capnioneura Ris, 1905 (Plecoptera, Capniidae)

摘要

The male call of Capnioneura mitis, produced by drumming, is recorded and analyzed for the first time. It also represents the first known signal for the genus. It consists of a highly variable number of beats (2-32) with inter-beat duration approximately constant along the call, but inter-beat duration is temperature dependent. Thus, at 13 degrees C the mean inter-beat duration is 1.397 s (SD = 0.050) while at 21 degrees C it is 1.139 s (SD = 0.093). The call pattern exhibited by this species, as those of the majority of previously studied Capniidae species, can be catalogued as an ancestral or near-ancestral percussive monophasic signal.