Diversity and distribution of aquatic insects in Southern Brazil wetlands: implications for biodiversity conservation in a Neotropical region.

Ornithodoros brasiliensis is an endemic tick from Brazil and is very aggressive to humans, resulting in pain, fever andintense inflammatory response. After more than 50 years without report, this species was recently found in rural areas ofSão Francisco de Paula municipality, State of Rio Grande do Sul, southern Brazil, from where it was originally described.Herein, we describe the larva and redescribe the adults of O. brasiliensis based on scanning electron microscopy. Sincethe type was lost we designate the neotype specimen under the number IBSP 10409. In addition, the relationship betweenO. brasiliensis and other species from the Neotropical region that share the morphological characteristics of Ornithodoroswith dorsal humps on tarsi, and also live under the soil and feed on hosts other than bats, are discussed. Molecular analysisinferred from a portion of the 16S rRNA mitochondrial gene is also provided and it placed O. brasiliensis in a cluster sup-ported by a maximal bootstrap value (100%) with Ornithodoros parkeri, Ornithodoros rostratus, and Ornithodoros turicata.

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A new species and a new record of the spider genus Nesticus (Araneae, Nesticidae) from southern Brazil

Zootaxa ◽

10.11646/zootaxa.4231.4.4 ◽

2017 ◽

Vol 4231 (4) ◽

pp. 564

Author(s):

NARELLE ESTOL ◽

EVERTON NEI LOPES RODRIGUES

Keyword(s):

New Species ◽

New Record ◽

Neotropical Region ◽

Minas Gerais ◽

The State ◽

South American ◽

Southern Brazil ◽

South American Species ◽

The Family ◽

A New Species

The spider family Nesticidae includes 233 species in 13 genera and is distributed almost worldwide (World Spider Catalog, 2016). However, the family is still poorly known in the Neotropical Region. The genus Nesticus Thorell, 1869 comprises 132 species and seven subspecies and was described based on N. cellulanus (Clerck, 1757), from Europe (World Spider Catalog, 2016). Meridional South American species of Nesticus were revised by Ott & Lise (2002). More recently, Faleiro & Santos (2011) described a new species from the state of Minas Gerais, Brazil and Torres et al. (2016) a new species from the province of Salta, Argentina. Nowadays, Nesticus is represented by six species in Brazil: Nesticus brasiliensis Brignoli, 1979; Nesticus brignolii Ott & Lise, 2002; Nesticus calilegua Ott & Lise, 2002; Nesticus ivone Faleiro & Santos, 2011; Nesticus potreiro Ott & Lise, 2002 and Nesticus taim Ott & Lise, 2002 (World Spider Catalog 2016).

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Pathology and morphometry of Hystrichis acanthocephalicus (Nematoda) from Phimosus infuscatus (Pelecaniformes) in southern Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612016089 ◽

2017 ◽

Vol 26 (1) ◽

pp. 34-38 ◽

Cited By ~ 1

Author(s):

Simone Scheer ◽

Márcia Raquel Pegoraro Macedo ◽

Mauro Pereira Soares ◽

Camila Costa Schramm ◽

Gertrud Muller

Keyword(s):

Histopathological Examination ◽

Neotropical Region ◽

External Diameter ◽

Southern Brazil ◽

Morphometric Data ◽

Aquatic Birds ◽

Body Width ◽

Pathological Conditions ◽

Males And Females ◽

Few Data

Abstract Species of Hystrichis are parasite nematodes of the digestive tract of aquatic birds in South America, Europe and Asia. In Brazil, Hystrichis acanthocephalicus has been reported in Phimosus infuscatus. There are few data on the morphometry of this species and there are no reports on pathological conditions that it causes. Therefore, the purpose of this study was to report morphometric data from H. acanthocephalicus and describe the pathological effects of this parasite on the Phimosus infuscatus proventriculus. Thirty gastrointestinal tracts of P. infuscatus were examined to search for nematodes and H. acanthocephalicus occurred in 83% of hosts. Were measured the total length and body width of males and females, and of their respective cuticular spines, esophagus, spicules and eggs, and the internal and external diameter of copulatory bursa. Histopathological examination revealed parasitic structures in the proventriculus from the lumen (anterior end) to the outer layers of the organ (intermediate and posterior parts), in which we observed inflammatory reaction with infiltration of heterophils, hemorrhage and hemosiderin. The results of this study of histopathology, morphometry and parasitological indices are the first ones reported to H. acanthocephalicus and should contribute to the identification and recognition in cases of outbreaks in the Neotropical region.

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A new heligmonellid (Nematoda) species of the genus Stilestrongylus in Euryoryzomys russatus (Rodentia: Sigmodontinae) in the Atlantic Forest, southern Brazil

Journal of Helminthology ◽

10.1017/s0022149x18000251 ◽

2018 ◽

Vol 93 (3) ◽

pp. 352-355 ◽

Cited By ~ 2

Author(s):

R.G. Boullosa ◽

R.O. Simões ◽

B.E. Andrade-Silva ◽

R. Gentile ◽

A. Maldonado

Keyword(s):

Small Intestine ◽

New Species ◽

Atlantic Forest ◽

Body Length ◽

Neotropical Region ◽

Southern Brazil ◽

Santa Catarina ◽

Spicule Length ◽

A New Species ◽

Caudal Bursa

AbstractA new species of Nippostrongylinae (Nematoda: Heligmonellidae), Stilestrongylus rolandoi n. sp., is described from specimens collected from the small intestine of the rodent Euryoryzomys russatus in the Atlantic Forest (Santo Amaro da Imperatriz, Santa Catarina state, southern Brazil). The genus Stilestrongylus includes 23 species, which parasitize rodents occurring in the Neotropical region. Stilestrongylus aureus (Durette-Desset & Sutton, 1985) from Argentina, S. azarai (Durette-Desset & Sutton, 1985) from Argentina, S. flavescens (Sutton & Durette-Desset, 1991) from Uruguay, S. franciscanus (Digiani & Durette-Desset, 2002) from Argentina, S. gracielae (Digiani & Durette-Desset, 2006) from Argentina, and S. oryzomysi (Sutton & Durette-Desset, 1991) from Argentina are closely related to Stilestrongylus rolandoi n. sp., all having caudal bursa patterns of types 1–4 in one of the lobes. Stilestrongylus rolandoi n. sp. is distinguished from the aforementioned species by its ray 6 being short in relation to rays 4 and 5, which are long and robust, and by having caudal bursa patterns of types 1–4 in both lobes. The new species has 27 ridges in the mid-body in males, and 24 in females, and has one of the highest ratios of spicule length to body length (21−33%) in this genus.

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Functional trophic groups and spatial variation of aquatic insects in a hydrographic basin of Southern Brazil

Acta Biológica Catarinense ◽

10.21726/abc.v5i3.447 ◽

2018 ◽

Vol 5 (3) ◽

pp. 50

Author(s):

Mario Arthur Favretto ◽

Elton Orlandin ◽

Emili Bortolon Dos Santos ◽

Osvaldo Onghero-Jr.

Keyword(s):

Spatial Variation ◽

Aquatic Insects ◽

Human Impacts ◽

Trophic Group ◽

Environmental Conservation ◽

Trophic Groups ◽

Southern Brazil ◽

Heterogeneous Distribution ◽

Environmental Evaluation ◽

Hydrographic Basin

In Brazil hydrographic basins are geographical unities used to environmental and hydric resources management, but few studies focus in the biodiversity variation within these unities. Here we present the results of spatial variation of aquatic insects in streams of a hydrographic basin in Southern Brazil. The insect composition was analyzed in relation to abundance of the families, functional trophic group and environmental evaluation indexes proposed by literature. The insects had a heterogeneous distribution in the sampling areas of the hydrographic basin. The most abundant families were Hydropsychidae, Philopotamidae and Leptophlebiidae, which demonstrate a good oxygenation of the water in the sampling streams. The most abundant functional trophic groups were gatherer-collector (20%) and scraper (18.92%). The indexes demonstrated the riverbeds of the streams are stable, with a high presence of fine particulate organic matter and they were considered heterotrophic. However, they also indicated a low abundance of shredders, which may be related to poor environmental conditions in the riparian forests. Therefore, here we found spatial variation of aquatic insects and indexes performed indicated the main human impacts as deforestation and inadequate land use. The data obtained also contributed to reinforce the importance of hydrographic basin as geographical unities for environmental conservation.

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Parque Nacional da Serra do Itajaí (southern Brazil) shrub and herbs flora

Check List ◽

10.15560/10.6.1249 ◽

2014 ◽

Vol 10 (6) ◽

pp. 1249 ◽

Cited By ~ 2

Author(s):

Luís Adriano Funez ◽

André Luís De Gasper

Keyword(s):

Species Diversity ◽

Exotic Species ◽

Biodiversity Conservation ◽

New Records ◽

Southern Brazil ◽

Santa Catarina ◽

Shrub Species ◽

Diversity Of Life ◽

Representative Family

This paper aim to characterize the herbaceous and shrub species diversity of Parque Nacional da Serra do Itajaí (PNSI). We identified 643 herbaceous and shrub species distributed in 110 families being the most representative family Asteraceae (62 species), Melastomataceae (49) and Rubiaceae (30), besides a two new records for Santa Catarina (Thelypteris glaziovii T.F. Reed and Pseudelephantopus spiralis Cronquist). We recorded 22 exotic species. Thus, due to the vast diversity of life and the rather large territory, PNSI is one of the most important spots for biodiversity conservation in Santa Catarina.

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A new species of Pseudogaurax Malloch (Diptera: Chloropidae) reared from dobsonfly egg-masses (Megaloptera: Corydalidae) in Brazil

Zootaxa ◽

10.11646/zootaxa.1972.1.5 ◽

2009 ◽

Vol 1972 (1) ◽

pp. 53-58 ◽

Cited By ~ 2

Author(s):

ADRIANO S. MELO ◽

TERRY A. WHEELER

Keyword(s):

New Species ◽

Neotropical Region ◽

Sao Paulo ◽

Type Locality ◽

São Paulo ◽

Southern Brazil ◽

Egg Masses ◽

A New Species

Pseudogaurax idiogenes Wheeler sp. n. (type locality: Iporanga, São Paulo, Brazil) is described from specimens reared from the egg masses of dobsonflies (Corydalidae) in southern Brazil. This is only the second record of Pseudogaurax larvae feeding on Megaloptera eggs (first from the Neotropical region). Larvae of most species of Pseudogaurax are predators of spider eggs.

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Sexual association and cicadellid hosts of Dryinidae (Hymenoptera, Chrysidoidea): description of five new species from Brazil and a synopsis of the interaction with Gyponini (Hemiptera, Membracoidea)

Insect Systematics & Evolution ◽

10.1163/1876312x-bja10006 ◽

2020 ◽

pp. 1-34

Author(s):

André Luis Martins ◽

Alexandre Cruz Domahovski ◽

Diana Isabel Rendón-Mera

Keyword(s):

New Species ◽

Neotropical Region ◽

The State ◽

Southern Brazil ◽

First Time ◽

A New Species

Interactions between dryinids and their hosts are poorly known in the Neotropical region, especially for the Brazilian fauna. This study aims to expand this incipient knowledge by describing a new species of Anteon Jurine and four new species of Gonatopus Ljungh reared from parasitized leafhoppers (Cicadellidae) collected in the state of Paraná, Southern Brazil. The new species, A. elianeae sp. nov., G. josei sp. nov., G. meloi sp. nov., G. pinhalensis sp. nov. and G. taquarensis sp. nov., are associated with leafhopper species of the subfamilies Iassinae (tribe Gyponini) and Deltocephalinae (tribes Deltocephalini and Pendarini). Both sexes of G. josei sp. nov. and G. taquarensis sp. nov. were associated and males are described, representing the first sexual association based on reared specimens from Brazil. We record for the first time species of Dryinidae parasitizing the leafhoppers species: Curtara concava, Gypona lita and Reticana lineatta (Gyponini), Graminella striatella (Deltocephalini) and Copidinomus vittulatus (Pendarini). All known records in the Neotropic of both Anteon and Gonatupus species associated with host are compiled, all known records of parasitoids of gyponines are reviewed, and the interactions with dryinids are discussed. Each new species is diagnosed and described, and illustrations of both dryinids and parasitized hosts are provided.

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A contribution to the systematics of the genus Manota Williston (Diptera: Mycetophilidae) in Brazil

Zootaxa ◽

10.11646/zootaxa.4472.1.1 ◽

2018 ◽

Vol 4472 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

OLAVI KURINA ◽

HEIKKI HIPPA ◽

DALTON DE SOUZA AMORIM

Keyword(s):

Atlantic Forest ◽

Distribution Patterns ◽

Original Description ◽

Wide Distribution ◽

Neotropical Region ◽

Brazilian Atlantic Forest ◽

Southern Brazil ◽

Original Illustrations ◽

Areas Of Endemism ◽

Non Destructive

A total of 286 male specimens of Manota from 38 different collecting sites in the Brazilian Atlantic Forest were analysed. They belong to 32 different species, including 20 described as new to science and 12 recognized as previously described species. The new species are M. abbreviata sp. n., M. atlantica sp. n., M. carioca sp. n., M. cavata sp. n., M. hirta sp. n., M. lamasi sp. n., M. lanei sp. n., M. nordestina sp. n., M. oliveirai sp. n., M. paniculata sp. n., M. papaveroi sp. n., M. periotoi sp. n., M. perparva sp. n., M. pseudoiota sp. n., M. rostrata sp. n., M. sanctavirginae sp. n., M. securiculata sp.n., M. silvai sp. n., M. tavaresi sp. n. and M. unispinata sp. n. The taxonomic context of the newly described species is discussed. Manota palpalis Lane, 1948, the type of which is considered lost, is redescribed and discussed, based on the original description, the original illustrations, and the type-locality. Our specimens of the previously described species belong to M. aligera Hippa, Kurina & Sääksjärvi, 2017, M. anfracta Hippa & Kurina, 2013, M. appendiculata Hippa & Kurina, 2013, M. caribica Jaschhof & Hippa, 2005, M. diversiseta Jaschhof & Hippa, 2005, M. micula Hippa & Kurina, 2013, M. panda Hippa & Kurina, 2013, M. pustulosa Hippa, Kurina & Sääksjärvi, 2017, M. quantula Hippa & Kurina, 2013, M. serrulata Hippa, Kurina & Sääksjärvi, 2017 and M. subaristata Kurina, Hippa & Amorim, 2017. Among the species dealt with here, ten have a wide distribution in South America or the Neotropics, six are known from only a single site, nine are widespread along the Atlantic Forest, and seven are known only from southern Brazil/northwestern Argentina. A discrepancy between the distribution patterns of Manota species and the general areas of endemism known for flies in the Atlantic Forest is discussed, and a non-destructive sequencing reverse workflow protocol for Manota specimens proposed. Including the species described here, the Neotropical region closely approaches the Oriental region in terms of the number of described species (92 and 102, respectively), while the genus now includes 300 species worldwide.

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Diets and trophic guilds of aquatic insects in Molino River, La Guajira, Colombia

Journal of Limnology ◽

10.4081/jlimnol.2016.1396 ◽

2016 ◽

Vol 75 (s1) ◽

Cited By ~ 4

Author(s):

Cristian Granados-Martínez ◽

Bladimir Zúñiga-Céspedes ◽

Julio Acuña-Vargas

Keyword(s):

Organic Matter ◽

Aquatic Insects ◽

Feeding Habits ◽

Neotropical Region ◽

Trophic Guilds ◽

Top Predators ◽

Temperate Streams ◽

Neotropical Streams ◽

Basal Resources ◽

First Time

Aquatic insects are considered a key component for stream food webs because of their contribution to the flow of energy from basal resources to the top predators. For this reason, the study of trophic guilds on aquatic insects is necessary to understand the transformation of energy and matter in stream ecosystems. The study of trophic guilds on aquatic insects has been widely documented in temperate streams. In contrast, little is known about feeding habits and trophic guilds in Neotropical streams. However, several lines of evidence indicate that aquatic insects in the Neotropical region are generally omnivores and that the Fine Particulate Organic Matter (FPOM) is the main food item. To test this hypothesis, we analyzed the diets and the trophic guilds of aquatic insects in an unexplored region of northern Colombia (Molino River, La Guajira). Aquatic insects were sampled using a Surber net, covering the different kind of substrates over a 100 m reach. Samples were sorted and identified to the lowest taxonomic level possible. We analyzed 250 guts of aquatic insects belonging to six orders, nine families, and 10 genera (Leptonema, Chimarra, Anacroneuria, Nectopsyche, Tabanus, Simulium, Pseudodisersus, Corydalus, Camelobaetidius, and Baetodes). We found that FPOM, algae, and animal tissue were the most important food items in the gut content of the aquatic insects at the Molino River. Our results suggest that aquatic insects in the Molino River are generally detritivores, highlighting the importance of the dead organic matter in Neotropical streams. We reported -for the first time- the trophic guilds of the genera Nectopsyche and Pseudodisersus, which were categorized as herbivorous. Our results suggest that aquatic insects in the Molino River exploit a variety of food resources and emphasize the importance of the study of feeding habits on aquatic insects in unexplored Neotropical streams.

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