Zwicknia, Muranyi, 2014

Reding, Jean-Paul G., 2018, Stoneflies of the genus Zwicknia Murányi, 2014 (Plecoptera: Capniidae) from western Switzerland, Zootaxa 4382 (2), pp. 201-241 : 205

publication ID

https://doi.org/10.11646/zootaxa.4382.2.1

publication LSID

lsid:zoobank.org:pub:646644A8-2587-4545-AF08-DC2A096DCB77

DOI

https://doi.org/10.5281/zenodo.6494456

persistent identifier

https://treatment.plazi.org/id/03AA87C9-FFA2-FFB3-FF7F-30E21BFA3BDB

treatment provided by

Plazi

scientific name

Zwicknia
status

 

Key to adults of Zwicknia from western Switzerland

1 Macropterous ( Figs. 4 View FIGURE 4 , 9 and 14). Cubital cell of forewing delimitated by the two cross-veins between veins Cu1 and Cu2 quadrangular in shape ( Figs. 4 View FIGURE 4 , 9 and 14; Aubert 1959: 26, Fig. 22; Murányi et al. 2014: 31, Fig. 56 View FIGURE 56 ). Posterior margin of subgenital plate (sternite 8) rectilinear or slightly rounded ( Fig. 5)........... adult females of Zwicknia (not keyed out further)

- Micropterous ( Figs. 1 View FIGURE 1 and 6) or brachypterous ( Figs. 10 and 13). Presence of an epiproct sclerite bent over the last tergites; tergite 9 with a characteristic process ( Figs. 3 View FIGURE 3 , 8 View FIGURE 8 and 12 View FIGURE 12 ). Presence of a ventral vesicle at the center of the posterior margin of sternite 9 ( Figs. 2 View FIGURE 2 , 7 View FIGURE 7 and 11 View FIGURE 11 )......................................................... 2 (adult males of Zwicknia )

2 Brachypterous ( Figs. 10 and 13). Tip of main epiproct sclerite long, slender, regularly bent and pointed at apex, in lateral view ( Fig. 12 View FIGURE 12 ). Process on tergite 9 high, perpendicularly raised and less than twice as wide as the main epiproct sclerite ( Fig. 12 View FIGURE 12 ; Boumans & Murányi 2014: 8, Fig. 2 View FIGURE 2 ). Ventral vesicle half as wide as the subgenital plate ( Fig. 11 View FIGURE 11 )..... Zwicknia westermanni

- Micropterous ( Figs. 1 View FIGURE 1 and 6)............................................................................. 3

3 In lateral view, the tip of the main epiproct sclerite is ogive, neither up-curved nor down-curved ( Fig. 3 View FIGURE 3 ). In dorsal view, the main epiproct sclerite is long and slender, with nearly parallel edges and without bulges ( Reding et al. 2016: 140, Fig. 4 View FIGURE 4 ). Process of tergite 9 low, rising sharply near the distal region of the corresponding tergite, not projecting caudally ( Fig. 3 View FIGURE 3 ). Ventral vesicle small, rounded at apex; width about ¼ to 1/5 of the subgenital plate ( Fig. 2 View FIGURE 2 ; Reding et al. 2016: 141, Fig. 5)............................................................................................... Zwicknia ledoarei

- In lateral view, the tip of the main epiproct sclerite is pointed, slightly up-curved ( Fig. 8 View FIGURE 8 ). Process of tergite 9 high and perpendicularly elevated, in lateral view ( Fig. 8 View FIGURE 8 ), arch-shaped in dorso-caudal view (Murányi et al. 2014: 58, Fig. 120). Ventral vesicle covering slightly less than half the width of the subgenital plate ( Fig. 7 View FIGURE 7 )........................... Zwicknia bifrons

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Capniidae