179 research outputs found
Epipleoneura angeloi Pessacq & Costa 2010
No full textEpipleoneura angeloi Pessacq & Costa, 2010 (Figs. 23, 45, 53) Epipleoneura angeloi Pessacq & Costa 2010: 55 –61, figs. 1 a–c, 2 a–b, 3 a–b, 4 (new species, description of male and probable female, illustration of cercus in dorsal and lateral view, epiproct in posterior view, genital ligula in ectal and lateral view, female pronotum in dorsal and lateral view, comparison with Epipleoneura williamsoni, distribution map, type material at MNRJ). Pessacq et al. 2012 : 5 (included in list of Brazilian Protoneuridae). Specimens examined. 16 ♂, 1 ♀. Holotype ♂ and 10 paratype ♂, Brazil, Minas Gerais State, Chapada dos Guimarães, riacho da represinha (about 15 ° 27 ’ 11 ”S, 55 ° 44 ’ 19 ”W), leg. Santos, N.D. & A. Carvalho, 28 x 1983. 3 paratype ♂ 1 ♀, same data as previous but: Rio Coxipozinho (about 15 ° 27 'S, 55 ° 44 'W). 2 paratype ♂, Brazil, Goiás State, Riacho Jataí (17 ° 52 ′ 51 ″S, 51 ° 42 ′ 50 ″W), leg. N.D. Santos, L.F.R. Netto, & Dacio, 12 x 1982. Diagnosis. Epipleoneura angeloi belongs, along with E. haroldoi Santos, 1964, E. manauensis Santos, 1964, E. spatulata Rácenis, 1960, and E. williamsoni, to a group of species with a long, well-developed dorsal branch and dorso-ventrally flattened cercus (about as long as or longer than S 10) parallel to main body axis, and a foliate and concave ventral branch (Figs. 22 c, 23 c, 24 c and 27 c). This group also lacks the inner-basal branch or tooth and the apical hook in the cercus. As well as in E. manauensis and E. williamsoni, the genital ligula (Fig. 45) has a bilobate apex with a shallow medial cleft, each postero-lateral projection has a long peduncle and its apex is bent distally. With E. haroldoi and E. williamsoni it shares a similar epiproct morphology (Figs. 23 a–c) that is curved in lateral view with two relatively short and parallel branches widely separated at their bases. This species is similar to E. williamsoni (contrasting characters given in parentheses); but in E. angeloi the ventral branch of the cercus is small and is separated by a narrow excavation from the upper branch, both are almost parallel and the apex of the paraproct does not surpass the level of the apex of the ventral branch (ventral branch larger and widely separated from dorsal branch, apex of paraproct surpasses level of the apex of the ventral branch in E. williamsoni). E. williamsoni and E. angeloi also share the presence of a small black spine close to cercus apex on inner margin (Figs. 23 a and 24 a). Similarities of this species with E. manauensis are discussed under that species. The male of E. angeloi has the cercus dorsal branch flattened, dorsal and ventral branches separated by a narrow excavation and ventral branch small and rounded. The female posterior lobe of prothorax (Fig. 53) is erect, with a wide rounded posteriorly directed medial lobe visible in dorsal view, and two rounded lateral lobes visible in lateral view, which distinguishes it from females of all other known Epipleoneura species. Distribution. Brazil, Mato Grosso (Chapada dos Guimarães) and Goiás (Jataí River) States (type locality Chapada dos Guimarães, riacho da represinha, about 15 ° 27 ’ 11 ”S, 55 ° 44 ’ 19 ”W).Published as part of Pessacq, Pablo, 2014, Synopsis of Epipleoneura (Zygoptera, Coenagrionidae, " Protoneuridae "), with emphasis on its Brazilian species, pp. 201-234 in Zootaxa 3872 (3) on page 205, DOI: 10.11646/zootaxa.3872.3.1, http://zenodo.org/record/23097
Redescription of Chilenoperla puerilis (Gripopterygidae: Plecoptera) from the eastern Andes of Patagonia
No full textPessacq, Pablo (2016): Redescription of Chilenoperla puerilis (Gripopterygidae: Plecoptera) from the eastern Andes of Patagonia. Zootaxa 4109 (1): 89-95, DOI: 10.11646/zootaxa.4109.1.
Epipleoneura ottoi Pessacq, sp. n.
No full textEpipleoneura ottoi Pessacq, sp. n. (Figs. 3, 42) Type material. Holotype ♂, Brazil, Goiás State, Sao Bartolomeu river (40 km from Paraiso, about 14 º03’ 39 ”S, 47 º 16 ’09”W), N.D. Santos, L.F. Netto & H. Mesquita, 15 ii 1981. One paratype ♂ same data as holotype. Two paratype ♂, same as holotype except 60 km from Paraiso. Male holotype. Head. Dorsally metallic green. Labrum black with an apical yellow band, anteclypeus yellow, postclypeus black, antefrons yellow, postfrons, antennifer and gena black. Thorax. Prothorax dorsally metallic green, sides yellow with a lateral black spot. Mesepisternum and mesepimeron metallic green; metepisternum and mesepimeron black, with an anterior light yellow area that continues ventrally on mesepimeron ventral third. Venter of thorax yellow. Coxa and trochanter yellow, femur black, tibia yellow with anterior side black, tarsus yellow with a medial and an apical black band. Wings hyaline, venation black; MP ending 0.5 cell distally from the vein descending from subnodus; IR 2 and RP 3 separated by a short crossvein one cell posterior to their origin; divergence of RP-RA (arculus) distal to antenodal 2; IR 1 beginning at postnodal 7 in Fw and at postnodal 6 in Hw; RP 2 beginning at postnodal 4 in Fw and at postnodal 3 in Hw; pterostigma pale brown, about 3 / 4 length of underlying cell; 11 postnodals in right Fw and 10 in left Fw, 8 in right Hw, 9 in left Hw. Antenodal spaces about 1.4: 1: 1.4. Abdomen: S 1–2 dorsally metallic green, remaining yellow; S 3–6 with apical brown ring, dorsal 2 / 3 black, remaining brown; S 7–10 black. Segment 3 of genital ligula (Fig. 42) slightly narrowed medially, sides slightly elevated, apex folded upwards, with a shallow medial cleft and two small spines at sides, postero-lateral projection widely rounded in lateral view, peduncle short, barely visible, a small rounded lobe basal to posterolateral projection. Cercus (Fig. 3) shorter than S 10, in lateral view shaped as an open C, with a small rounded innerbasal tooth; dorsal branch directed dorsally, with apical hook directed ventrally, posterior margin concave in lateral view; ventral branch small, approximately rounded and developed as a projection of cercus base. Epiproct (Fig. 3 b–c) bifurcated, branches fingerlike, short and parallel, joining at base and separated by a triangular swollen structure. Dimensions. Total length 30.8; abdomen length 25.8; Fw: 16.4; Hw: 15.7. Paratypes: Same as holotype except: abdomen black with dark brown venter in two paratypes, MP ending 0.4 to 0.5 cell distally from the vein descending from subnodus; IR 1 beginning at postnodal 7 or 8 in FW and at postnodal 6 or 7 in HW; 10 to 12 postnodals in FW, 8 to 10 in HW. Dimensions. Total length 32.3 ± 0.9; abdomen length 27.2 ±2,6; Fw: 17.82 ± 0.55; Hw: 16.8 ± 0.35. Diagnosis. Epipleoneura ottoi is similar to E. machadoi, E. kaxuriana, and E. westfalli; it can be distinguished from the former by the comparatively shorter epiproct branches, the small inner-basal tooth (large and triangular basal tooth in E. machadoi) and the C-shaped cercus with posterior margin of dorsal branch concave in lateral view (L shaped and convex or straight in E. machadoi). Epipleoneura ottoi differs from E. kaxuriana in the small inner basal tooth of cercus (well developed inner-basal branch in E. kaxuriana) and in the epiproct branches separated by a triangular swollen structure (TS, Fig. 3 b) (lacking in E. kaxuriana). From E. westfalli, it can be distinguished by the epiproct branches comparatively shorter, parallel, and joined at base (longer, divergent, and fused along basal to apical third in E. westfalli). The cercus with a small inner-basal tooth, the epiproct with short branches with their bases joined and the genital ligula with two small spines on its apex is a unique character combination within the genus. Female unknown. Etymology. I name this species ottoi (noun in apposition) in honor of my beloved father, Raúl Adolfo Pessacq, whose nickname is Otto. Distribution. Central Brazil, in Goiás State (type locality Sao Bartolomeu river, 40 km from Paraiso). The exact sampling site in Sao Bartolomeu river could not be located due to vague label data information, but the main road from Alto Paraiso to Sao Bartolomeu river reaches the river at approximately 40 km at 14 º03’ 39 ”S, 47 º 16 ’09”W. Notes. During my 2009 stay in MNRJ, I examined approximately 20 specimens of this new species. Unfortunately, during my visit in 2011 this material could not be located.Published as part of Pessacq, Pablo, 2014, Synopsis of Epipleoneura (Zygoptera, Coenagrionidae, " Protoneuridae "), with emphasis on its Brazilian species, pp. 201-234 in Zootaxa 3872 (3) on pages 225-226, DOI: 10.11646/zootaxa.3872.3.1, http://zenodo.org/record/23097
A new Gripopterygidae (Plecoptera) species from southern Patagonia
No full textPessacq, Pablo (2009): A new Gripopterygidae (Plecoptera) species from southern Patagonia. Zootaxa 2264: 51-57, DOI: 10.5281/zenodo.19080
Sistemática filogenética y biogeografía de los representantes neotropicales de la familia Protoneuridae [Odonata: Zygoptera]
No full textTesis presentada para optar al Grado de Doctor en Ciencias NaturalesFil: Pessacq, Pablo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentin
Description of the imago of Meridialaris spina Pescador & Peters 1987 (Insecta: Ephemeroptera)
No full textPessacq, Pablo (2010): Description of the imago of Meridialaris spina Pescador & Peters 1987 (Insecta: Ephemeroptera). Zootaxa 2674: 61-64, DOI: 10.5281/zenodo.19917
Epipleoneura susanae Pessacq, sp. n.
No full textEpipleoneura susanae Pessacq, sp. n. (Figs. 9, 50) Type material. Holotype male, Brazil. Mato Grosso State, São Lorenzo river, São Vicente, L.F. Reys leg, 22 vii 1983. Paratype ♂, same as previous but Sinop (11 º 50 ’ 53 ”S, 55 º 38 ’ 57 ”W), Braulio and O. Roppa leg, x 1976. Male holotype. Head. Dorsally metallic green. Postclypeus black, anteclypeus yellow; labrum black with apical yellow band; antefrons with a dorsal black band following the internal and ventral margin of the antennifer at the sides, finally contacting the eyes, remainder yellow; antennifer inner and ventral side black, remaining yellow; gena black. Thorax. Prothorax metallic green. Mesepisternum and mesepimeron metallic green; color of metepisternum divided by a diagonal line from anterior end of interpleural suture to posterior end of metapleural suture, dorsal to this line metallic green, ventral to it dark yellow. Venter of thorax yellow. Legs yellow, with middle section of femur brown and its apex black. Wings hyaline, venation black; posterior right wing broken, MP ending 0.5 cell distally from the vein descending from subnodus; IR 2 and RP 3 separated by a short crossvein one cell posterior to their origin; divergence of RP-RA (arculus) slightly distal to antenodal 2; IR 1 beginning at postnodal 7 in Fw and postnodal 6 in Hw; RP 2 beginning at postnodal 4 in Fw and postnodal 6 in hind wing; pterostigma pale brown, about 2 / 3 length of underlying cell; 9 postnodals in Fw, 8 in Hw. Abdomen. S 1–2 dorsally dark brown, sides brown, venter yellow; S 3–7 dorsally black, sides brown, venter yellow; S 8 with a more extended black pattern, venter light brown, S 9 black, S 10 same as S 8. Segment 3 of genital ligula (Fig. 50) slightly narrowed medially, sides slightly elevated, apex with two rounded lobes and a shallow medial cleft, with sides elevated, postero-lateral projections directed postero-laterally, each with short peduncle, apex widely rounded, a small rounded lobe basal to postero-lateral projection. Cercus (Fig. 9) shorter than S 10, with a small inner-basal tooth; dorsal branch directed dorsally, with an apical hook directed meso-ventrally; ventral branch small, developed as a projection of cercus base. Paraproct conical. Epiproct (Fig. 9 b–c) bifurcated, branches relatively short and narrow, slightly convergent and with their bases widely separated. Dimensions. Total length 30.9; abdomen length 26.1; Fw: 17.2; Hw: 16.15. Paratype. Same as holotype except: prothorax brown. Pterothorax with three metallic green spots at posterior end of mesopleural, interpleural, and metapleural sutures. Mesepisternum dorsal half metallic green, remaining mesepisternum and mesepimeron brown; color of metepisternum divided by a diagonal line from anterior interpleural suture to posterior metapleural suture, dorsal to this line brown, ventral to it pale yellow; metepimeron and pterothoracic venter pale yellow. Legs yellow, with apex of femur brown. Abdomen: S 1–2 dorsally metallic green, remaining light brown; S 3–7 with an anterior light brown and a posterior brown ring, dorsally brown, remaining light brown; S 8–10 dorsally dark brown, ventrally light brown. Dimensions. Total length 29.5; abdomen length 24.7; Fw: 16.15; Hw: 15. Diagnosis. Male cercus and epiproct with short branches are similar to those of E. kaxuriana and E. ottoi. E. susanae differs from both species by the widely separated branches of the epiproct (comparatively closer in E. kaxuriana, Fig. 1 b, and fused at base in E. ottoi, Fig. 3 b). Additionally, E. kaxuriana and E. ottoi also have the apex of segment 3 of genital ligula folded dorsally, and a small spine on each side, lacking in E. susanae. The apex of genital ligula with two small rounded lobes; male cercus with a small inner-basal tubercle; epiproct bifurcated, branches slightly convergent and with their bases widely separated are a unique character combination within the genus. Female unknown. Etymology. I name this species susanae (noun in the genitive case) in honor of my beloved mother, Susana Ringuelet. Distribution. Central Brazil, in Mato Grosso State (type locality São Lorenzo river, Sao Vicente). São Vicente locality could not be located in Mato Grosso State. São Lorenzo river runs from about 17 º 18 ’ 25 ”S, 56 º 43 ’ 31 ”W to 17 º 54 ’05”S, 57 º 27 ’ 38 ”W.Published as part of Pessacq, Pablo, 2014, Synopsis of Epipleoneura (Zygoptera, Coenagrionidae, " Protoneuridae "), with emphasis on its Brazilian species, pp. 201-234 in Zootaxa 3872 (3) on pages 228-229, DOI: 10.11646/zootaxa.3872.3.1, http://zenodo.org/record/23097
A New Generic Synonymy for Leptophlebiidae (Ephemeroptera) from Patagonia, and Descriptions of Female and Subimagos of Dactylophlebia carnulenta Pescador & Peters
No full textSpecimens of Dactylophlebia carnulenta Pescador & Peters, only known from nymphal stage, were collected and reared in situ. From the material obtained, Archethraulodes spatulus Pescador & Peters, known from male imago and the only known species for the genus, is proposed as junior synonymy with d. carnulenta. Additionally, female imago and subimagos of d. carnulenta are described.Fil: Pessacq, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentin
FIGURE 4 in Redescription of Chilenoperla puerilis (Gripopterygidae: Plecoptera) from the eastern Andes of Patagonia
No full textFIGURE 4. Wings of Chilenoperla puerilis. Adult male (Yrigoyen Stream). 2a, fore wing. 2b, hind wing.Published as part of Pessacq, Pablo, 2016, Redescription of Chilenoperla puerilis (Gripopterygidae: Plecoptera) from the eastern Andes of Patagonia, pp. 89-95 in Zootaxa 4109 (1) on page 93, DOI: 10.11646/zootaxa.4109.1.8, http://zenodo.org/record/26708
FIGURE 1. Andiperlodes tehuelche male. 1a, abdominal segment X, dorsal view. 1b in A new Gripopterygidae (Plecoptera) species from southern Patagonia
No full textFIGURE 1. Andiperlodes tehuelche male. 1a, abdominal segment X, dorsal view. 1b, abdominal segments VII–X, lateral view. Scales 1 mm.Published as part of Pessacq, Pablo, 2009, A new Gripopterygidae (Plecoptera) species from southern Patagonia, pp. 51-57 in Zootaxa 2264 on page 52, DOI: 10.5281/zenodo.19080
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