Antarctoperla altera Zwick, 1973

Vera, Alejandro, 2023, A new species of Gripopterygidae (Insecta: Plecoptera) from Patagonia: Antarctoperla aonikenk sp. n., Zootaxa 5339 (6), pp. 587-593 : 588

Antarctoperla altera Zwick, 1973

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org:TaxonName:6758

(Male, Figs. 12–14 ; Female, Figs. 21–22 )

Specimens

New locality records and material examined. Chile: Región de Aysén, Comuna Río Cisnes, El Sauce, 43°59’S 72°31’W, Sep. 27 2012, leg. U. Aránguiz (1 female); Comuna Río Ibáñez, camino a exploradores, 46°26’S 73°12’W, Oct. 31 2012, leg. P. Solis (2 males, 1 female). Región de Magallanes, Comuna Natales, Puerto Edén, Wick, col. A. Zúñiga (1 female); Seno obstrucción, 52°09’S 72°29’W, Oct. 19 2017, col. C. Hernandez (2 female).

Comments. Only two specimens have been previously documented in the literature ( Illies 1963). The larvae are described in a taxonomic key, without indicating the locality ( McLellan & Zwick, 2007). The new records presented extend the distribution of the species by approximately 9° latitude.

Figures

FIGURES 9–17. Antarctoperla spp. Comparison of male genitalia in SEM image, for A. aonikenk holotype (9–11), A. altera (12–14) and A. michaelseni (15–17). 9, 12, 15. Dorsal view; 10, 12, 16. Lateral view, without right paraprocts; 11, 14, 17. Apex right paraproct, lateral view. Scale bar = 200 µm.

FIGURES 18–26. Antarctoperla spp. Comparison of wings and subgenital plate females for A. aonikenk paratypes (18–20, 23, 26), A. altera (21–22) and A. michaelseni (24–25). 18, 21, 24. Right wings, scale bar = 5 mm; 19–20, 22, 25. Subgenital plates, scale bar = 0.5 mm; 23. Habitus female, scale bar = 5 mm; 26. Female paratype label.