Anacroneuria terere, Righi-Cavallaro, Karina O. & Lecci, Lucas S., 2010

Righi-Cavallaro, Karina O. & Lecci, Lucas S., 2010, Three new species of Anacroneuria (Plecoptera: Perlidae) from Centre-West and Southeast Brazil, Zootaxa 2683, pp. 35-44: 37-43

publication ID 10.5281/zenodo.199362

persistent identifier

treatment provided by


scientific name

Anacroneuria terere

sp. n.

Anacroneuria terere  sp. n.

( Figs. 7–12View FIGURES 7 – 9View FIGURES 10 – 12)

Description. General colour yellowish-brown. Area between ocelli light brown, expanding anteriorly into a T-shaped bar, rest of head lighter ( Fig. 7View FIGURES 7 – 9). Clypeal area light brown laterally and frons lighter. Antennae light brown, palpi yellowish. Pronotum square shaped, anterior corners angular, posterior corners rounded, light brown with yellowish median stripe and light, lateral areas, rugosities darker. Legs light brown, tibiae and tarsi darker. Wings yellowish hyaline, veins light, region between C and R veins opaque.

Male. Forewing length, 11.2 mm. Penial armature ( Figs. 10–12View FIGURES 10 – 12) narrowing slowly to end piece. Hooks basally with a distinct hump, rest smoothly curved with pointed tips. In lateral view, dorsal keel absent, oblong penial apex bends dorsally. Distal ventral vesicles absent.

Female. Forewing length, 14.6–15.5 mm, n= 16. Subgenital plate four-lobed ( Fig. 8View FIGURES 7 – 9), lateral notches shallow, median one distinctly deeper. St 9 with distal margin sinuous and sclerotized, field of hairs V –shaped, longer hairs near margin. Egg oval ( Fig. 9View FIGURES 7 – 9) and dark brown, 0.37 x 0.20 mm; egg batch cord shaped.

Remarks. The penial armature is similar to that of A. saltensis ( Froehlich, 2002)  , but the dorsal keel is absent in A. terere  . The apical portion of the penial armature is similar to that of A. caraja Froehlich, 2002  , but in this species the shoulders are not conspicuous. In addition, A. terere  differs from both species in color pattern; A. caraja  is a pale, whitish color whereas A. saltensis  is yellowish.

Etymology. Tereré  , from the Guarani language, is a typical cold beverage, made with “erva-mate” ( Ilex paraguariensis  ) and widely consumed in Argentina, Brazil, Uruguay and Paraguay. First invented by the Guaraní natives who lived in Paraguay and western Brazil (Mato Grosso do Sul), tereré  was spread by the dwellers of that region, and for centuries has been a social beverage. It is a noun in apposition.