Anacroneuria ruschii , Novaes, Marcos Carneiro, Bispo, Pitágoras Da Conceição & Gonçalves, Maísa De Carvalho, 2016

Novaes, Marcos Carneiro, Bispo, Pitágoras Da Conceição & Gonçalves, Maísa De Carvalho, 2016, A new species of Anacroneuria Klapálek 1909 (Plecoptera: Perlidae) from Espírito Santo State, southeastern Brazil and comments on additional species, Zootaxa 4208 (1), pp. -1--1: -1

publication ID 10.5281/zenodo.202045

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scientific name

Anacroneuria ruschii

n. sp.

Anacroneuria ruschii  n. sp.

Figure 2View FIGURE 2 (A –G)

Material examined. Holotype: male: Brazil, Espírito Santo State, Santa Teresa , S19o54’53.42’’ W40o33’40.36’’, 08–09.ix.2015, light trap, FFST ( CZNC)GoogleMaps  . Paratype; 1 male: Santa Teresa , S19o54’53.42’’ W40o33’40.36’’, 08– 09.ix.2015, light trap, FFST ( CZNC)GoogleMaps  ; Santa Teresa , S19o54’53.42’’ W40o33’40.36’’, 08–09.ix.2015, light trap, 2 females, FFST ( CZNC)GoogleMaps  .

Description. General color brown. Head brown with M-line, portions of clypeus and frons orange ( Fig. 2View FIGURE 2 A); lappets dark brown; clypeal area setose; post frontal line V-shaped; scape and pedicel dark brown; flagellum brown to dark brown; palpi brownish. Pronotum dark brown with darker rugosities ( Fig. 2View FIGURE 2 A). Legs brown to dark brown, tibia and tarsi darker. Wing membrane brown, veins dark brown. Cerci brown.

Male: Forewing length 8.1–8.3 mm. Hammer thin, longer than wide ( Fig. 2View FIGURE 2 B). Penial armature with a pair of medium distal membranous vesicles ( Fig. 2View FIGURE 2 C –D) and apex bottleneck-shaped with an opening; in lateral view, keel with a pointed protrusion between two flaps ( Fig. 2View FIGURE 2 C), in dorsal view, thimble-shaped ( Fig. 2View FIGURE 2 D); hooks relatively large, regularly curved and with apex acute ( Fig. 2View FIGURE 2 C).

Female: Forewing length 16.2–16.4 mm. Subgenital plate light brown 4-lobed ( Fig. 2View FIGURE 2 F) with a medial notch deeper. Egg: 0.225 mm x 0.145 mm ( Fig. 2View FIGURE 2 G).

Remarks. The overall color of this species is darker than typical species of the genus. In dorsal ( Fig. 2View FIGURE 2 D) and lateral ( Fig. 2View FIGURE 2 E) views, the penial armature resembles those of A. debilis  and A. lencoensis Righi-Cavallaro  et al.. 2013. However, in A. ruschii  , the apex of penial armature and the apex of keel in lateral view are thinner. Furthermore, the vesicles in ventral view are smaller in A. ruschii  . The hammer of A. ruschii  is relatively acute and thin differing of those of A. debilis  and A. lencoensis  . The body size of A. ruschii  is smaller than A. debilis  but similar to that of A. lencoensis  .

Etymology. The patronym honors Augusto Ruschi, a notable Brazilian naturalist who has spent most of his life devoted to the conservation of natural resources of Espírito Santo State, Brazil.