Anacroneuria rotunda, Gonçalves, Maísa De Carvalho, Novaes, Marcos Carneiro & Salles, Frederico Falcão, 2017

Gonçalves, Maísa De Carvalho, Novaes, Marcos Carneiro & Salles, Frederico Falcão, 2017, New species and records of Perlidae (Plecoptera) from Espírito Santo State, Brazil, Zootaxa 4273 (1), pp. 141-150 : 142

publication ID

https://doi.org/ 10.11646/zootaxa.4273.1.11

publication LSID

lsid:zoobank.org:pub:ABA29124-2EFE-49F5-8EF7-FB81D1B37A7F

DOI

https://doi.org/10.5281/zenodo.6018405

persistent identifier

https://treatment.plazi.org/id/0E36085F-6E4C-9F25-FF1D-4BF7FBCCF0BA

treatment provided by

Plazi

scientific name

Anacroneuria rotunda
status

sp. nov.

Anacroneuria rotunda View in CoL sp. n.

Figs. 1A–1 View FIGURES 1 E.

Material examined. Holotype male ( CZNC): Brazil ( BRA), Espírito Santo State (ES), Alegre , S20°37'11,4" W41°37'35.4", 04–05.iv.2016, light trap GoogleMaps , FFST. Paratypes ( CZNC): 12 males: BR, ES, Alegre , S20°37'11,4" W41°37'35.4", 04–05.iv.2016, light trap GoogleMaps , FFST.

Description. General color dark brown, almost black. Head brown with M-line distinct, areas of clypeus brown, frons orange ( Fig. 1A View FIGURES 1 ); lappets black; clypeal area setose; post frontal line U-shaped; scape and pedicel dark brown; flagellum dark brown; palpi brownish. Pronotum dark brown almost black with lighter rugosities ( Fig. 1A View FIGURES 1 ). Legs dark brown to black, tibia darker and tarsi lighter. Wing membrane brown, veins dark brown. Cerci dark brown almost black.

Male: Forewing length 11.7–12 mm (n=13). Hammer truncate, wider than long ( Fig. 1 View FIGURES 1 B). Penial armature with a pair of medial distal membranous vesicles ( Figs. 1 View FIGURES 1 C–1E) and apex bottleneck-shaped, opening relatively large; in lateral view, keel convex apically ( Fig. 1 View FIGURES 1 E), dorsal view, U-shaped ( Fig. 1 View FIGURES 1 C); hooks relatively short and flattened, little curved and with acute apices ( Fig. 1 View FIGURES 1 D).

Remarks. The dark color of this species is uncommon in regional species. In dorsal view ( Fig. 1 View FIGURES 1 C) and lateral view ( Fig. 1 View FIGURES 1 D), the penial armature resembles those of A. singela Duarte & Lecci 2016 described from northeastern Brazil. In this species, however, the keel is not convex apically as in the new species. Additionally, A. rotunda is smaller and darker than A. singela.

Etymology. The specific epithet makes reference to the bulged shape of the keel in dorsal and lateral views. The word rotunda derives from the Latin "rotundus," round, spherical or, orbicular.

BRA

Slovak National Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Perlidae

Genus

Anacroneuria

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