Programa de Pós-Graduação em Zoologia - PPGZOOL/ICB
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/2343
O Programa de Pós-Graduação em Zoologia (PPGZOOL) do Instituto de Ciências Biológicas (ICB) foi consolidado como um convênio entre Universidade Federal do Pará (UFPA) e Museu Paraense Emílio Goeldi (MPEG).
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Item Acesso aberto (Open Access) Análise cladística de Edessa (Hypoxys) com a descrição de um grupo novo de espécies (Heteroptera, Pentatomidae, Edessinae)(Universidade Federal do Pará, 2018-12-10) MENDONÇA, Maria Thayane da Silva; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Genus Edessa has many problems of taxonomy and nomenclature, but to make the revision of the genus in only one study becomes impracticable due to the large number of species (<600 species), so it was proposed to review small groups of species. The subgenus Hypoxys is a monophyletic group according to the single phylogenetic analysis, supported by four synapomorphies. This subgenus of Edessa has 17 described species and more than 40 new species for science, according to an unpublished revision. Thus, this work aims to propose a group of species within Hypoxys, to describe 15 new species, and to make an identification key for them, as well as to run a cladistic analysis to Hypoxys. Thereby, we intend to test the monophyly of Hypoxys and relationship among species with the inclusion of more species and new characters. Thirty-five specimens from national and foreign institutions and private collections were analyzed. These specimens were described, measured and photographed. For the cladistic analysis, a data matrix with 35 taxa and 39 characters was made using Mesquite software, the matrix was calculated in TNT and the cladogram was edited using WinClada. The maximum parsimony was used to run the cladistic analysis. To reduce the final number of trees implicit weighing (k = 2 to k = 6) was used. To verify the values of clade support, the relative bremer support and the symmetric resampling method were calculated. The analysis without implicit weighing resulted in 73 trees with 78 steps, consistency index 57 and retention index 89. The analysis with implicit weighing (k = 2 to k = 6) resulted in 37 trees with 76 steps, consistency index 59 and retention index 90. Tree topology was similar using or not implicit weighing. All resulting trees from relative bremer and symmetric resampling showed high branch support for Hypoxys and the target group. The results corroborate Hypoxys as monophyletic, being formed by three large groups, which share seven synapomorphies and three homoplasic synapomorphies: ventral coloration of the humeral angles of color; scutellum with dark spot in the anterior third present; apex of the dorsal rim fused to the margin of the posterolateral angles; excavation in rounded metapleuron; no roughness of the textured surface of the evaporatorium; presence of the dorsal rim with a thickness variation from the center to the posterolateral angles; format of the straight paramere; presence of a flap in the ventral region of the proctiger; presence of a "carpet of hairs" on the ventral rim; expansion of the ventral rim of the tumid. In addition, the target group has other additional diagnostic features, they are: the posterior region of the hyaline pronotum, brown, extending to the posterior margin of the pronotum; conexivum without stains; two pairs of circular, dark spots on the ventral part of the thoracic surrounded by a greenish ring; ventral region evenly green with a central yellowish color in the abdomen; dark and circular spots next to the pseudosutures; posterior margin of the gonocoxite 8 projected later. The result of the analysis showed the clade Hypoxys as monophyletic, as well as the target group of this work composed by 15 new species.Item Acesso aberto (Open Access) Análise cladística e descrição de um grupo novo de espécies de Edessa (Heteroptera, Pentatomidae, Edessinae)(Universidade Federal do Pará, 2012) SILVA, Valéria Juliete da; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245The suborder Heteroptera, is one of the largest hemimetabolic taxa and currently composed by seven infraorders, 23 superfamilies and 80 families. Pentatomidae is the fourth most numerous and diverse family among heteropterans having 4100 species in 760 genera and seven subfamilies. Edessinae has almost 290 species distributed in six genera: Edessa, Brachystethus, Peromatus, Olbia, Pantochlora and Doesburgedessa. Among these genera Edessa concentrates almost all species as well as most of the taxonomical and nomenclatural problems of the subfamily. Due to its size, the revision is being made in parts, from the study of groups of species united by characteristics that are possible synapomorphies.Thus, the aim of this work is to propose and describe a new group of species based on a cladistic analysis. For the study were examined 114 specimens belonging to national and international collections. Descriptions were made following a traditional method also used for Edessinae. Photos and measurements of the species, line art drawings from metasternal process and genitalia of both sexes, key and distribution map are also provided. For the cladistic analysis 22 morphological characters were raised and polarized using an out group composed of Tibilis sp., Neotibilis fulvicornis, Brachystethus cribrus, Pantochlora vivida, Olbia elegans, Peromatus sp., Doesburgedessa elongatispina, Edessa cervus and Edessa affinis. Analysis was performed using NONA and a single tree with 30 steps, Consistency Index=0,93 and Retention Index=0,97 was obtained. Based on this analysis, the monophyly of the target group of species was confirmed. Thus, the group stolida is here proposed to include four species already described (Edessa stolida (Linnaeus, 1758), Edessa heymonsi Breddin, 1904, Edessa verhoeffi Breddin, 1904 and Edessa paravinula Barber, 1935) and five new species. The group stolida of Edessa is recognized by a protruding process of the posterior side of segment X; medial region of paramere with a triangular projection; absence of a distal band or tuft of hair on segment X; and gonapophyse 8 sclerotized. Species of the group stolida were differentiated only by the external genitalia of both sexes. The cladistic analysis supports the traditional view and the stolida group should be considered part of the subgenus Hypoxys of Edessa. Topology of the cladograma resultant is (Tibilis sp + Neotibilis fulvicornis (Brachystethus cribrus (Pantochlora vivida ((Doesburgedessa elongatispina + Edessa cervus (Peromatus sp. + Olbia elegans)) (Edessa affinis ((Edessa sp. nov 3 + Edessa sp. nov 3a) ((Edessa sp. nov 2 (Edessa verhoeffi+ Edessa heymonsi)) (Edessa stolida (Edessa sp. nov 4 (Edessa paravinula + Edessa sp. nov 5 ))))))))). The female of Edessa stolida and male of Edessa verhoeffi were described here for the first time. The records of species distribution are expanded.Item Acesso aberto (Open Access) Análise cladística e descrição de um novo gênero de Edessinae (Hemiptera, Heteroptera e Pentatomidae)(Universidade Federal do Pará, 2016-04-06) NUNES, Benedito Mendes; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Item Acesso aberto (Open Access) Análise cladística e novas espécies de Grammedessa Correia & Ferandes, 2016 (Heteroptera, Pentatomidae, Edessinae)(Universidade Federal do Pará, 2017-04-26) SILVA, Paulo Augusto Lima da; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/1580962389416378The genus Grammedessa Correia & Fernandes, 2016 has twelve species and was proposed without a cladistic analysis. The main diagnostic feature for Grammedessa are the black stripes on dorsal side of the head, these stripes are also present in specimens that were not initially considered part of the genus due to the absence of the other diagnostic characteristics of the group. The objective of the present work was to analyze Grammedessa using the cladistic methodology and to test if the initially excluded species would be or not part of this genus. A total of 45 specimens were examined. The descriptions followed pre-established models for descriptions in Edessinae. The cladistic analysis was performed exclusively with morphological characters polarized through the outgroup method, the matrix was composed by thirty-six terminal taxa, twenty-for in the outgroup, twelve in the ingroup, and forty-three characters in its mostly, binary. For the phylogenetic inference, maximum parsimony method was used using heuristic search algorithms, T.N.T. software was used. At the end of the analysis without weighing, eight equally parsimonious trees were obtained (L=108, CI=49 and IR=80); Using implicit weighing (n=6) three more parsimonious trees were obtained (L=109, CI=48 IR=80), and the consensus tree was presented and discussed. The hypothesis that Grammedessa is monophyletic was tested and corroborated by two synapomorphies: the dorsal region of the head with longitudinal stripes formed by spots and punctuation, the posterior side of the proctíger presenting a raised keel; Eight new species were described for the genus; Edessa Botocudo Kirkaldy, 1909 was transferred to Grammedessa.Item Acesso aberto (Open Access) Análise cladística e revisão do subgênero nominal de Edessa (Heteroptera: Pentatomidae: Edessinae)(Universidade Federal do Pará, 2017-01-23) SILVA, Valéria Juliete da; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Pentatomidae is the fourth numerous and diverse family of Heteroptera. From Pentatomidae, Edessinae has more than 300 described species. Edessinae is a Neotropical subfamily with nine genera: Edessa Fabricius, 1803, Brachystethus Laporte, 1832, Ascra Say, 1832, Peromatus Amyot & Serville, 1843, Olbia Stål, 1862, Pantochlora Stål, 1870, Doesburgedessa Fernandes, 2010, Paraedessa Silva & Fernandes, 2013 and Grammedessa Correia & Fernandes, 2016, genera with well-defined diagnoses except Edessa which is considered a deposit of species to the subfamily. Edessa has the greatest taxonomical and nomenclatural problems of Edessinae, because it historically has a great confusion with the limits of the genus and subfamily. To solve the problem was proposed the review of Edessa from groups of species and subgenera. Edessa is composed by five subgenera: Aceratodes Amyot & Serville, 1843, Dorypleura Amyot & Serville, 1843, Pygoda Amyot & Serville, 1843, Hypoxys Amyot & Serville, 1843and the nominal subgenus. Among subgenera only the nominal was not reviewed. As Edessa (Edessa) is an “empty taxa”, composed only by the type specie, it were used the characters of the groups of species by Stål (1872) as start point to the delimitation of this subgenus. During the bibliography research was found a mistake in the typification of Edessa, so here the type specie was changed from E. cervus (Fabricius, 1787) to E. antilope (Fabricius, 1798). To recognize and limit Edessa and to create relationship hypothesis among the species was realized a cladistics analysis. It were included the species considered by Stål (loc. cit.) as part of the Edessa group of species, as well as species that possess the characters mentioned by Stål as diagnosis to this group. The data matrix is composed for 111 morphological characters and 85 taxa, 13 of outgroup and 72 of ingroup. For the analysis were realized two weighting schemes: equal and implicit weight of characters with K varying from 3–12, and two types of search: traditional and new technologies. The cladogram with K=8 and traditional search have 763 steps, IC: 19 and IR: 60. Based on this cladogram the subgenus Edessa is composed by 10 species known for the science: E. antilope, E. cervus, E. taurina Stål, 1862, E. ibex Breddin, 1903, E. arabs (Linnaues, 1758), E. cylindricornis Stål, 1872, E. rondoniensis Fernandes & van Doesburg, 2000, E. burmeisteri Fernandes & van Doesburg, 2000, E. cerastes Breddin, 1905 and E. elaphus Breddin, 1905, and six new morphotypes: E. sp. nov. “near flavinernis”, E. sp. nov. “close flavinernis”, E. sp. nov. “near 112”, E. sp. nov. “close 112”, E. sp. nov. “40” and E. sp. nov. “131”. The subgenus Edessa is diagnosed by the mainly green color on dorsal surface; humeral angles at least twice longer than large, black apex of humeral angle posteriorly curved, whole or bifid; embolium contrasting in color to the corium; corium with at least one yellow vein; dorsal rim of pygophore narrow and continuous with the base of posterolateral angles. Also the cladistics analysis suggests the monophyly of Edessinae and polyphyly of Edessa in its current composition. Changes in taxonomical status to genera of Aceratodes, Dorypleura, Pygoda and Hypoxys are corroborated. Peromatus appears with an internal branch in the analysis; it reinforces the necessity to review the genus. Also were recognized and described 13 new group of species to Edessa. Were redescribed species known to the science and described new species to the genus. Nomenclatural problems have been identified, with 11 synonyms proposed and a revalidation of taxon previously in synonymy; lectotypes were designated and a key of identification of species is given.Item Acesso aberto (Open Access) Contribuições taxonômicas para Palpigera Hebard (Orthoptera:Phalangopsidae) com descrição de novas espécies , novos registros e proposição de um novo gênero para Luzarina(Universidade Federal do Pará, 2025-04) FRANCO, Lianderson Farias; TAVARES, Gustavo Costa; http://lattes.cnpq.br/1932927205901338; HTTPS://ORCID.ORG/0000-0002-1395-7552; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245; https://orcid.org/0000-0001-7450-5296The subtribe Luzarina is the most representative in the neotropical region, currently with 128 valid species distributed across 49 genera. In this study, we contribute to the knowledge of the group by describing five new species of Palpigera and a new genus with a new species, Parapalpigera amazonica gen. et sp. nov. The five Palpigera species were identified from 74 specimens collected in different locations in Brazil, including Serra do Cachimbo (PA), Canaã dos Carajás (PA), São José do Rio Claro (MT), Cocalzinho de Goiás (GO), and the Parque Nacional das Sete Cidades (PI). Morphological and internal genitalia analysis revealed that these species differ from other members of the genus in features such as the shape of the palpi, the tenth tergite, metanotal glands, the arrangement of the tympana on the forelegs, vein cells in the tegmina, and the morphology of the phallic complex. These species represent the first records of Palpigera for the northern and northeastern regions of Brazil. Additionally, we describe Parapalpigera amazonica gen. et sp. nov., collected in the Amazon rainforest. This new genus, probably related to Melanotes and Palpigera, is distinguished by its reduced tegmina without a stridulatory apparatus, absence of tympanum, long and thin palpi, shape of the endophallus sclerite, bifid endophallus apodeme, and shape of the female copulatory papilla. These findings expand the taxonomic and biogeographic knowledge of the Luzarina subtribe in the neotropical region.Item Acesso aberto (Open Access) Descrição de um gênero novo e três espécies novas de Edessinae (Hemiptera: Heteroptera: Pentatomidae)(Universidade Federal do Pará, 2017-12-07) ALMEIDA, Flávio Roberto de Albuquerque; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245The family Pentatomidae is the fourth most diverse among Heteroptera, comprising about 4.700 species divided in, approximately, 800 genera. The family is a monophyletic taxa characterized by the loss of gonapophyses 8, gonapophyses 9 reduced and fused to gonocoxites 9, gonangulum absent and the ductus receptaculi dilated and invaginated, forming three distinct walls. The subfamily Edessinae is the second most diverse, comprising about 320 species divided in nine genera: Edessa Fabricius, 1803 (about 300 species), Ascra Say, 1832 (14 species), Brachystethus Laporte, 1832 (10 species), Peromatus Amyot & Serville, 1843 (seven species), Olbia Stål, 1862 (three species), Pantochlora Stål, 1870 (one species), Doesburgedessa Fernandes, 2010 (five species), Paraedessa Silva & Fernandes, 2013 (nine species) and Grammedessa Correia & Fernandes, 2016 (12 species). The genus Edessa has many taxonomic and nomenclatural problems related to the lack of a reliable diagnosis. In this way, species which have general characteristics of the subfamily and did not fit in the diagnostic features of other genera of Edessinae are considered to belonging to Edessa. This practice made the genus a "deposit" of species with indefinite limits. The proposal for the genus is to revise Edessa in groups of species sharing morphological distinctive characters (possible synapomorphies). One of these enigmatic groups of Edessa is formed by Edessa celsa Distant, 1890 and three allied new species. Here we describe a new genus for these four species sharing a unique set of characteristics and compare with Hypoxys, subgenus of Edessa with similar facies. Diagnosis, illustrations of the metasternal process and external and internal genitalia, photographs of the dorsal and ventral view, and a distributional map are provided. A key to the genera belonging to Edessinae and a key to the species of Plagaedessa are also provided. Male and female genitalia of Plagaedessa celsa n. comb. are described for the first time. Distribution of P. celsa is extended to Costa Rica and Mexico. The lectotype of Edessa celsa is here designated.Item Acesso aberto (Open Access) Efeito do uso do hábitat sobre a comunidade de Gerromorpha (Heteroptera) em uma área de transição Amazônia-cerrado, Mato Grosso, Brasil(Universidade Federal do Pará, 2008) WANZELER, Elaine Cristina de Miranda; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245The aquatic and semiaquatic bugs (Heteroptera) belong to three different monophyletic infra-orders: Gerromorpha, Nepomorpha and Leptopodomorpha. In Brazil only a few studies on these groups have been carried out, mostly in the state of Minas Gerais. This study aimed to determine land use intensity effect over the aquatic Heteroptera-Gerromorpha community. The study was carried out at Tanguro farm, state of Mato Grosso, in a area of transition between cerrado and tropical rain forest. Samples were collected on May and July in 2006 and 2007 in six streams within three different environments: soybean plantation, pasture and forest. Five families, 19 genera, 36 species and 13 morphospecies of Gerromorpha were collected. Species accumulation curves for each environment did not reach an asymptote, though they showed a clear tendency to stabilization. Therefore, increasing the number of samples probably will set the real species number close to the observed for the whole study area. Although vegetation coverage was significantly different among the three environments (ANOVA, F2,45= 23,72; P < 0,001), the habitat type did not influence the number of Gerromorpha species (ANOVA F3,44= 0,77; P = 0,52). In addition, the two axis of a MDS analysis based on species composition did not discriminate the habitats. On the other hand, the abundance of seven species was significantly different among habitats. Analysis of the abundance matrix shown (axis 1- MANOVA; F2,45 = 16,27; P < 0,001 and axis 2- MANOVA; F2,45 = 6,31; P = 0,004) segregated forest species. The three habitats shared 57,14% of the species collected. The considerable decrease in number of specimens from the forest to the pasture may be related to the lost of vegetation coverage in disturbed areas. The species Brachymetra lata, Brachymetra sp. 1, Cylindrostethus palmaris, Tachygerris celocis, Rhagovelia paulana, Rhagovelia whitei and Neogerris lubricus could be considered indicator species based on significant differences in abundance between disturbed and undisturbed areas.Item Acesso aberto (Open Access) Proposição de um novo gênero de Edessinae (Heteroptera, Pentatomidae)(Universidade Federal do Pará, 2015-02-12) CORREIA, André Oliveira; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Edessinae have seven genera, among them Edessa is the largest with more than 250 names proposed and more than 300 species to be described. The diversity resulted in a complex taxonomical history, so Edessa is the genus with more taxonomical and nomenclatural problems in Edessinae. Review the genus in groups of species is the best proposal to organize Edessa and it already resulted in description of two new genera of Edessinae. This study selected three species described by Beddin (1905), in addition to eight new species chosen for morphological characters. A new genus to Edessinae is proposed, uniting species with four black and punctured stripes longitudinal on dorsal surface of the head; humeral angles laterally projected, slightly flattened dorso-ventrally; metasternal process with branches of bifurcation narrow, long, thin in the apex; abdominal trichobothria placed laterally, not aligned with spiracles; gonocoxites 8 and laterotergites 8 always punctured in females; gonocoxites 8 large, subequal in length to laterotergites 9; pygophore with dorsal rim with semicircular excavation, paramere posteriorly projected, genital cup superior process dark, laminar, partially fused to the cup process. Edessa pallicornis, E. bugabensis, E. rorativentris and E. stillativentris are redescribed and transferred to the new genus. E. strigiceps is proposed as junior synonym of Gen. nov. pallicornis. This study gives the first description of males of Gen. nov. bugabensis and Gen. nov. rorativentris. Extended distribution of Gen. nov. bugabensis (Costa Rica), Gen. nov. rorativentris (Brazil), Gen. nov. stillativentris (Colombia). The lectotype of Gen. nov. bugabensis is here designated. Eight new species are described to the new genus: Gen. nov. sp. n. 203a, Gen. nov. sp. n. 203e, Gen. nov. sp. n. 205, Gen. nov. sp. n. 206, Gen. nov. sp. n. 207, Gen. nov. sp. n. 207c, Gen. nov. sp. n. 297 e Gen. nov. sp. n. 297b.Item Acesso aberto (Open Access) Proposição e descrição das espécies do grupo Edessa pallida, Dallas, 1851 (Heteroptera, Pentatomidae)(Universidade Federal do Pará, 2008) CAXIAS, Fabricio da Costa; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Pentatomidae is the fourth biggest family in Heteroptera and is composed by 470 genera and 4700 species. It is a world wide distributed family, but the subfamilies Cyrtocorinae, Discocephalinae and Edessinae are only found in the Neotropics. Among the Pentatomidae subfamilies Edessinae presents the major taxonomic and nomenclatural problems, which are concentrated in the genus Edessa. Edessinae is a megadiverse taxa (about 280 known species plus 350 unknown species) and composed by five genera: Edessa (259 described species), Olbia (5), Pantochlora (1), Peromatus (7) e Brachystethus (10). Recently Edessa has been studied by dividing the species in groups of morphologically similar species. The present work follows this line and proposes the Edessa pallida group. This group is based in external morphological characteristics such as the narrow body shape, punctures pattern, forewing reticulation abdominal spot pattern and also the characteristics of male genitalia. The included species are Edessa pallida Dallas, 1851, Edessa inscripta Walker, 1868 e Edessa polymita Distant, 1890, and five new species. The total sample examined in this work was 70 individuals belonging to 12 national and foreign collections. The species were described, illustrated and measured following the pattern adopted to the family. The described species had their distribution amplified. The sp. nov. 1 was described based on specimens from Surinam, French Guiana and Brazil; the sp. nov. 2 from Guiana and Brazil; the sp. nov. 3 from Brazil; the sp. nov. 4 from French Guiana; and the sp. nov. 5 from Guiana, Surinam, French Guiana and Brazil. An identification key and a geographic distribution map of the species are presented.Item Acesso aberto (Open Access) Revisão de Aceratodes Amyot & Serville, 1843 (Heteroptera, Pentatomidae, Edessinae)(Universidade Federal do Pará, 2013) SIQUEIRA, Emely Laiara Silva de; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Edessinae is one of the largest and more diverse subfamily of Pentatomidae. This is due to the large number of described (about 260) and undescribed species (about 300). Edessinae comprises today six genera: Edessa, Brachystethus, Peromatus, Olbia, Pantochlora and Doesburgedessa. Along the time, species not fitting in one of the genera remaining were automatically placed in Edessa, leading to confusion between the limits of the genus and subfamily. The large number of species resulted in concentration of the taxonomical and nomenclatural problems of the Edessinae in Edessa. Therefore, new taxonomical studies are needed to solve these problems involving Edessinae and Edessa: revising the genera of Edessinae, reviewing the status of the subgenera of Edessa, redescribing species and proposing nomenclatural changes. The main objective of this study was to review the status of Aceratodes as well as to propose some nomenclatural changes detected. Were analyzed 283 specimens belonging to 22 institutions from Brazil and other countries. For each species were provided descriptions, measures, photographs, drawings of the taxonomically significant structures (metasternal process and genitalia of both sexes), identification key and distributional maps. Aceratodes was raised to genus level based on morphological characteristics common to all species,such as: humeral angle not developed and rounded; female genital plates of female not produced posteriorly; hemelitron with embolium showing texture, color and punctures pattern different from the remaining corium; arms of the metasternal process laterally flat and not reaching anterior third of mesosternum. Aceratodes now is composed by 19 species. A new species from Atlantic Forest; two originally described in this genus: A. albomarginatus and A. marginalis; and 16 transferred from Edessa: E. abdominalis, E. aulacosterna, E. brasiliensis, E. carnosa, E. castaneolineta, E. cerradensis, E. chapadensis, E. fulvicornis, E. luteovenulata, E. meditabunda, E. mexicana, E. ovalis, E. piperitia, E. rufodorsata and E. rufomarginata and E. sternalis. The female of A. meditabundus is here described for the first time. The lectotype of Edessa mexicana is here designated. The species Edessa corallipes, E. cogitabunda and E. virididorsata were considered junior synonyms of A. carnosus, A. meditabundus and A. fulvicornis respectively.Item Acesso aberto (Open Access) Revisão e análise cladística do gênero Ascra say, 1832, com considerações sobre a filogenia de Edessinae (Heteroptera, Pentatomidae)(Universidade Federal do Pará, 2014) SANTOS, Bianca Tamires Silva dos; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Edessinae is one of the largest subfamilies in Pentatomidae, comprising about 300 described species plus 300 undescribed ones divided in only six genera: Edessa, Brachystethus, Peromatus, Olbia, Pantochlora and Doesburgedessa. Most of the species belong to Edessa that carries as well most of the taxonomical problems of the subfamily. This genus is used as a deposit for species not included in the other genera of Edessinae because of the lack of clear limits between the family and the genus Edessa. Solution for such confusion necessarily involves evaluation of the subgenera of Edessa and taxonomical changes in Edessinae. The main goal of this study is to evaluate the taxonomic status of Ascra and its phylogenetic position within Edessinae. We examined 411 specimens from several collections. Descriptions, measurements and photographs of the species, illustrations of metasternal process, male and female genitalia, keys and distributional maps are provided. Cladistic analysis was performed using 28 taxa and 33 morphological characters, eight multistate treated as non additive. The out-group included14 species belonging to all genera of Edessinae and subgenera of Edessa. Edessinae remains monophyletic but Edessa showed up paraphyletic. Ascra is monophyletic supported by two synapomorphies. This genus is now composed by A. bifida, A. cordifera, A. petersii, A. abdita, A. championi, A. privata, A. conspersa, A. morbosa and six new species. Two new groups of species were proposed in Ascra: bifida and privata. Males of A. abdita, A. morbosa and A. cordifera and females of A. championi and A. privata, unknown so far, were described. New nomenclatural arrangements were made. The lectotype of Edessa abdita was designated. Edessa cornuta, Edessa densata, Edessa picata and Edessa florida were considered junior synonyms of A. bifida.Item Acesso aberto (Open Access) Sinopse do grupo salina do gênero Rhagovelia (Insecta: Hemiptera: Veliidae), com descrição de nova espécie e chave de identificação(Universidade Federal do Pará, 2014) MAIA , Ariadne Mendonça; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245Rhagovelia bentoi sp. nov., from the state of Pará, northern Brazil, is described, illustrated, and compared with other species of the genus. Rhagovelia ephydros (Drake & Van Doesburg) and R. plumbea Uhler are redescribed and recorded for the first time from Brazil. Diagnosis, maps, and an identification key to all species of the salina group are also presented.Item Acesso aberto (Open Access) Urhai gen. nov., um novo gênero para Edessinae (Hemiptera: Heteroptera: Pentatomidae)(Universidade Federal do Pará, 2025-03) FERREIRA, Adiney Ferreira; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245; https://orcid.org/0000-0001-7450-5296Edessinae is the second most diverse subfamily of Pentatomidae, with approximately 500 described species distributed in 17 genera. This taxon is considered monophyletic, supported by molecular evidence and morphological characteristics. Among the genera, Edessa stands out for harboring more than 300 species, but it faces taxonomic challenges, including problems of nomenclature and classification, and is often considered a "species repository". This work aims to describe a new genus with three species previously allocated to Edessa and five new species. For the study, 94 specimens from national and foreign institutions were analyzed. Urhai gen. nov. is easily recognized by the morphology of the body, mainly presenting the head with median punctuations forming two vertical stripes on the clypeus, antennal articles I–III with small dark circular spots, pronotum with developed humeral angle; flattened and punctuated dorsoventrally; distal margin laminar; posterior angle spiniform, posterior margin of the pronotum covering the anterior part of the scutellum, metasternal process flattened; anterior arms of the bifurcation reaching or nearly reaching the limit of the propleura; distal margin generally straight. Diagnoses, species identification key and distribution maps were presented. This study is of great importance in understanding the diversity of Edessinae.