Perlinella drymo (Newman, 1839)

Sandberg, John B. & Stewart, Kenneth W., 2006, Continued Studies Of Vibrational Communication (Drumming) Of North American Plecoptera, Illiesia 2 (1), pp. 1-14 : 6

Perlinella drymo .

Forty-seven and 37 signals were obtained from one, 1-day old male and female, respectively, at 24°C and 70 FTC. The male and female produced 2-way duets (N=36) and a new 3-way exchange (N=1), consisting of a male call, female answer, and male response following the answer. Previously, Zeigler and Stewart (1977) reported this species with only a 2-way vibrational communication. Males consistently called with 3beat signals containing a long 1 st interval (92.3 ± 1.4 ms) and a short 2 nd interval (26.9 ± 3.2 ms) ( Fig. 7 , Tables 3–4). The female answer was a single beat and followed the last male call beat by 138.0 ± 5.1 ms. The male response signal followed the female answer ( ♀ - ♂ exchange interval) by 181.9 ms and contained 10 beats with intervals of 28.3 ± 2.3 ms.

Figures

Figs. 7–13. 7. Perlinella drymo drumming: 3-way exchange, TD = 689-msec. Bar = 500-msec; 8. Hydroperla crosbyi drumming: 3-way exchange, TD = 1491-msec. Bar = 500-msec; 9. Isoperla bifurcata drumming: 2- way duet with female interspersed answer, TD = 647-msec. Bar = 500-msec; 10. Isoperla phalerata 2-way duet, diphasic male call, TD = 2579-msec. Bar = 500-msec; 11. Isoperla sobria drumming: 2-way duet, female interspersed answer not shown, TD = 589-msec. Bar = 500-msec; 12. Isoperla quinquepunctata drumming. (A) Typical “multiple” 2-way duets, indicated by lines below, TD = 6727-msec. Bar = 1000- msec, (B) “Multiple” 2-way duets with female interspersed answer beat in first duet, TD = 1688-msec. Bar = 500-msec; 13. Pteronarcys dorsata drumming: 2-way duet with female interspersed answer, TD = 2652- msec. Bar = 1000-msec.