Anacroneuria iporanga Bispo & Froehlich, 2004

Almeida, Lucas Henrique De, Cardoso-Leite, Ricardo, Deodato, Mariana Fonte Boa & Bispo, Pitágoras Da Conceição, 2019, Anacroneuria iporanga (Plecoptera: Perlidae): description of the nymph and biological notes, Zootaxa 4550 (1), pp. 141-145: 142-144

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Anacroneuria iporanga Bispo & Froehlich, 2004


Anacroneuria iporanga Bispo & Froehlich, 2004 

Anacroneuria iporanga Bispo & Froehlich, 2004: 103  .

Material examined. Adults: Brazil, São Paulo,GoogleMaps  Iporanga, PEI, Ribeirão Água Comprida   GoogleMaps (24°17’38”S, 48°25’04”W), 1 male (Holotype, MZSP), 23.ix.1999; Ribeirão Bocaina (24°16’13”S, 48°27’09”W), 1 male (Paratype / MZSP), 28–30.xi.2000GoogleMaps  . Nymphs : BR, SP, Iporanga, PEI, Ribeirão Bocaina, 2 nymphs, 01.viii.2000  ; 1 nymph, 05.viii.2000; 3 nymphs, 12.viii.2000; 2 nymphs, 19.viii.2000; 6 nymphs, 26.viii.2000; Cachoeira Água Comprida , 1 nymph, 02.viii.2000  ; 7 nymphs, 06.viii.2000; 1 nymph, 20.viii.2000; 2 nymphs, 27.viii.2000; 3 nymphs, 0 3. ix.2000; Ribeirão Água Comprida , 5 nymphs, 10.ix.2000  .

Last instar nymph description. General color brown. Head brown with M-line ochraceous to yellowish ( Fig. 2View FIGURES 2–7); anteriorly parietalia brown and posteriorly ochraceous to yellowish; eyes and ocelli black; clypeal area yellowish; labrum brown; postfrontal line as an open V ( Fig. 2View FIGURES 2–7); mouthparts as in Figs. 3–5View FIGURES 2–7, mandibles with a dense brush of bristles in molar area ( Fig. 3View FIGURES 2–7); palpi pale yellow; scape, pedicel and flagellum ochraceous. Pronotum brown with thin median line and rugosities light yellow ( Fig. 2View FIGURES 2–7). Forefemur brownish dorsally and ochraceous ventrally; dorsal surface covered by setae and with a glabrous longitudinal line; dorsal surface also covered by sparse bristles, which are more robust and reach higher density in the posterodorsal part; posterior part of the femur with a band of bristles ( Fig. 6View FIGURES 2–7). Tibia anteriorly with sparse thick bristles, and posteriorly with a row of thick bristles and a well-developed band of hairs ( Fig. 6View FIGURES 2–7). Tarsus brownish. Abdomen brown dorsally and ochraceous to yellow ventrally. Cerci light brown with thick bristles; segments differ in shape and size from base to apex ( Fig. 7View FIGURES 2–7). Thoracic gills: ASC1, PSC1, AT2, AT3 and PT3 (sensu Shepard & Stewart, 1983; Stewart & Stark, 2002).

Remarks. Compared to the other known Brazilian Anacroneuria  nymphs that are known, A. iporanga  has the head and pronotum pattern similar only to A. flintorum ( Almeida et al., 2018)  . However, the two species differ in the light spots near the ocelli and M-line. In addition, the nymph of A. iporanga  has the dorsal surface of the forefemur with a higher density of thick bristles than that of A. flintorum  .

Biological notes. Nymphs of A. iporanga  occurs mainly in riffles of small streams with fast currents. The preference for riffles may suggest that this species requires well-oxygenated lotic habitats, similar to other species of Anacroneuria  . Examination of stomach contents of Anacroneuria  nymphs have indicated that they are predatory consuming mainly Ephemeroptera, Trichoptera  , and Diptera  immature, as shown for Kempnyia  ( Dorvillé & Froehlich, 2001; Bispo & Froehlich, 2008). In A. iporanga  , we identified two preferred prey items Simuliidae  ( Diptera  ) (63.5%) and Ephemeroptera  (26%). The mayflies were represented by two families, the Baetidae  and Leptophlebiidae  . The predominance of the Simuliidae  in the diet was expected since larvae occur abundantly in riffles with A. iporanga  .


Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo


Embrapa Agrobiology Diazothrophic Microbial Culture Collection














Anacroneuria iporanga Bispo & Froehlich, 2004

Almeida, Lucas Henrique De, Cardoso-Leite, Ricardo, Deodato, Mariana Fonte Boa & Bispo, Pitágoras Da Conceição 2019

Anacroneuria iporanga

Bispo, P. C. & Froehlich, C. G. 2004: 103