Complements to the description of the vibrational duet of Rhabdiopteryx thienemanni Illies, 1957 (Plecoptera: Taeniopterygidae).

Rhabdiopteryx thienemanni Illies, 1957 is a stonefly species distributed across southern France and the Iberian Peninsula. The male drumming call of this species had been so far known only from a Spanish population, but the complete duet is unknown. In the present paper, complete three-way signal is described for the first time in details from a French population. The male call does not differ from the pattern presented by the Spanish population. Records of female answers are composed of a large repetition of knocks but interknock intervals are almost constant in the first two thirds of the signal and increasing progressively in the last part. The male reply is also composed of approximately constant interknock intervals that become variable (increasing) in the last part of the signal. The male reply mimics the female answer. The signal of R. thienemanni is compared with other Rhabdiopteryx species. [ABSTRACT FROM AUTHOR]