RESUMO

Abstract Iguaçu National Park is the second largest (1852.62 km²) protected area in the Atlantic Forest domain and harbors the largest area of semideciduous seasonal forest in Brazil. In this study, we present 795 subspecies and 787 species of butterflies that occur in this protected area and its surrounding areas, collected over 15 years and ten months using different non-standardized sampling methods. We also searched for additional records in the literature, entomological collections, and citizen science platforms on the internet. Among the sampled taxa, six are recorded for the first time in Brazil: Emesis orichalceus Stichel, 1916, Theope p. pakitza Hall & Harvey, 1998 (Riodinidae), Elbella v. viriditas (Skinner, 1920), Apaustus gracilis ssp. n. (Hesperiidae), Deltaya sp. n. (Nymphalidae), and Symbiopsis sp. n. (Lycaenidae). Another six are listed as endangered in lists of butterflies of conservation concern. The records for some species significantly increase previously documented distributions.

Resumo O Parque Nacional do Iguaçu é a segunda maior Unidade de Conservação (1.852,62 km²) no domínio Mata Atlântica, abrigando a maior área de Floresta Estacional Semidecídua no Brasil. Neste estudo apresentamos uma lista com 795 subespécies e 787 espécies de borboletas que ocorrem nesta Unidade de Conservação e seus arredores, coligida ao longo de 15 anos e dez meses através do uso de diferentes métodos de amostragem não padronizados. Nós também procuramos por registros adicionais na literatura, coleções entomológicas e plataformas de ciência cidadã na internet. Dentre os táxons amostrados, seis são registrados pela primeira vez para o Brasil: Emesis orichalceus Stichel, 1916, Theope p. pakitza Hall & Harvey, 1998 (Riodinidae), Elbella v. viriditas (Skinner, 1920), Apaustus gracilis ssp. n. (Hesperiidae), Deltaya sp. n. (Nymphalidae) e Symbiopsis sp. n. (Lycaenidae). Outras seis espécies são consideradas ameaçadas de extinção em listas de borboletas de interesse para a conservação. Os registros de algumas espécies aumentam significativamente as suas distribuições previamente documentadas.

RESUMO

Resumen Orugas de dos especies altoandinas de Eumaeini (Lycaenidae: Theclinae) fueron halladas consumiendo hojas de Weinmannia crassifolia Ruiz & Pav., 1802 (Cunoniaceae). La colecta se realizó usando la técnica de colecta por golpeo. Esta familia de plantas es registrada por primera vez como planta alimenticia de los Eumaeini. Aunque no pudimos completar la crianza, las especies de Lycaenidae fueron identificadas mediante sus códigos de barra de ADN. Las orugas de Penaincisalia purpurea (K. Johnson, 1992) y Micandra dignota (Draudt, 1919) se describen e ilustran por primera vez. También se presentan datos sobre su ecología y relaciones con especies similares. Una tercera especie, registrada en estadio pupal en la misma planta de W. crassifolia fue un Nymphalidae, Perisama diotima (Hewitson, 1852).

Abstract Caterpillars of two Andean species of Eumaeini (Lycaenidae: Theclinae) were found eating leaves of Weinmannia crassifolia Ruiz & Pav., 1802 (Cunoniaceae). They were collected by "beating" the leaves. This plant family is reported for the first time as a food plant for Eumaeini. Although it was not possible to rear the caterpillars to the adult stage, we identified them using DNA barcodes. The caterpillars of Penaincisalia purpurea (K. Johnson, 1992) and Micandra dignota (Draudt, 1919) are described and illustrated for the first time. Data on their ecology and relationships with similar species are also presented. A third species collected on the same plant of W. crassifolia in the pupal stage was a Nymphalidae, Perisama diotima (Hewitson, 1852).

RESUMO

Abstract The richest butterfly communities in the world are found in the Amazon rainforest. Despite of this, and the importance of species inventories for the knowledge of diversity patterns, there are few comprehensive lists of butterflies for localities in the Brazilian Amazon. Here, we present an updated list of the butterflies of Cristalino Lodge (Alta Floresta, Mato Grosso, Brazil), in southern Amazonia, based on specimens collected by researchers and photographic records taken by ecotourists, butterfly watchers, and tour guides. With 1010 species recorded, this is currently the largest list of butterflies published for a single locality in Brazil and the first to reach (and surpass) 1000 species, with more than one third of the records coming from citizen science. The region has about 29% of the butterfly species in Brazil and one of the greatest richnesses known in the country, inferior only to areas in the western Amazon. Its fauna is mainly composed of species widely distributed in lowland Amazonia, with the addition of some species typical of the Cerrado. It has a relatively low number of species of the tribe Ithomiini (Nymphalidae: Danainae), generally considered a good indicator of the total butterfly diversity in neotropical forests, which points to the need for caution when using a single taxonomic group as a surrogate of richness of entire communities. The present work highlights the importance of citizen science and ecotourism centers for inventories and data on species distribution in diverse tropical forests.

Resumo As comunidades de borboletas mais ricas do mundo são encontradas na Amazônia. Apesar disso, e da importância dos inventários de espécies para o conhecimento dos padrões de diversidade, existem poucas listas abrangentes de borboletas para localidades da Amazônia brasileira. Aqui, apresentamos uma lista atualizada das borboletas do Cristalino Lodge (Alta Floresta, Mato Grosso, Brasil), no sul da Amazônia, baseada em espécimes coletados por pesquisadores e em registros fotográficos feitos por ecoturistas, observadores de borboletas e guias turísticos. Com 1010 espécies registradas, essa é atualmente a maior lista de borboletas publicada para uma localidade no Brasil e a primeira a atingir 1000 espécies, sendo mais de um terço dos registros provenientes da ciência cidadã. A região apresenta cerca de 29% das espécies de borboletas do Brasil e uma das maiores riquezas conhecidas no país, inferior apenas a áreas no oeste da Amazônia. Sua fauna é composta principalmente por espécies amplamente distribuídas na planície amazônica, com adição de algumas típicas do Cerrado. Possui um número relativamente baixo de espécies da tribo Ithomiini (Nymphalidae: Danainae), que é geralmente considerada uma boa indicadora da riqueza total de borboletas em florestas neotropicais, o que aponta para a necessidade de cautela ao se usar um grupo taxonômico como previsor da riqueza de comunidades inteiras. O presente trabalho destaca a importância da ciência cidadã e dos centros de ecoturismo para inventários e dados sobre distribuição de espécies em florestas tropicais diversas.

RESUMO

The top-down and indirect effects of insects on plant communities depend on patterns of host use, which are often poorly documented, particularly in species-rich tropical forests. At Barro Colorado Island, Panama, we compiled the first food web quantifying trophic interactions between the majority of co-occurring woody plant species and their internally feeding insect seed predators. Our study is based on more than 200 000 fruits representing 478 plant species, associated with 369 insect species. Insect host-specificity was remarkably high: only 20% of seed predator species were associated with more than one plant species, while each tree species experienced seed predation from a median of two insect species. Phylogeny, but not plant traits, explained patterns of seed predator attack. These data suggest that seed predators are unlikely to mediate indirect interactions such as apparent competition between plant species, but are consistent with their proposed contribution to maintaining plant diversity via the Janzen-Connell mechanism.

Assuntos

RESUMO

Hairstreak butterflies in the Atlides Section of the Eumaeini are biologically notable for a diverse array of male secondary sexual organs. A "species recognition" hypothesis postulates that females use these organs to choose between conspecific and non-conspecific males, thereby promoting reproductive isolation. Alternately, a "sexual selection" hypothesis posits that females use these organs to choose among conspecific males. These hypotheses need not be mutually exclusive but make different predictions about the evolutionary gain and loss of male secondary sexual organs. We analysed most of the Atlides Section (Theclinae, Eumaeini) phylogenetically. Sister lineages were sympatric at 22 of 37 nodes. Nine evolutionary gains occurred in lineages that were sympatric with their phylogenetic sister, and one occurred in a lineage that was allopatric/parapatric with its sister. By contrast, seven of ten evolutionary losses occurred in lineages that were allopatric/parapatric with their sisters. These results are significantly different from those predicted by a sexual selection hypothesis. We conclude that male secondary sexual organs in the Atlides Section function primarily for species recognition and thereby promote sympatric diversification.

RESUMO

Abstract Despite being one of the groups most well studied in Brazil, the butterfly fauna of northeastern Brazil, especially north of the mouth of São Francisco River, is poorly known. The aim of this study was to inventory the butterfly fauna in a remnant of Atlantic Forest in the state of Pernambuco as a contribution to understanding the distribution of these insects. The study was carried out in a 384.7 hectares fragment of Parque Estadual Dois Irmãos, in the metropolitan region of Recife. The butterflies were sampled monthly with insect nets from August 2011 to July 2012 and from January to August 2016. Additional records were obtained from two entomological collections and from two previous visits to the area in July 2003 and August 2006. A total of 273 species was sampled in 464 hours, with an additional 15 species recorded from the Entomological Collections, totaling 288 butterfly species recorded. The richest family was Hesperiidae (108 species), followed by Nymphalidae (80), Lycaenidae (43) Riodinidae (37), Pieridae (16) and Papilionidae (4). The fauna was dominated by generalist species with a broad geographical distribution, many of them commonly found on open areas, forest edges and secondary vegetation. Roeberella lencates (Hewitson, 1875) and Pheles atricolor atricolor (Butler, 1871) (Riodinidae) represent new records for northeastern Brazil.

Resumo Apesar de ser um dos grupos mais bem estudados no Brasil, as borboletas da região Nordeste, especialmente ao norte da foz do Rio São Francisco, são ainda pouco conhecidas. O objetivo deste estudo foi realizar um inventário da fauna de borboletas em um fragmento de Floresta Atlântica no estado de Pernambuco, como uma contribuição para compreensão sobre a distribuição desses insetos. O estudo foi realizado em um fragmento de Floresta Atlântica de 384.7 hectares do Parque Estadual Dois Irmãos, localizado na região metropolitana de Recife. As borboletas foram amostradas mensalmente, de agosto de 2011 a julho de 2012 e de janeiro a agosto de 2016, com auxílio de redes entomológicas. Registros adicionais foram obtidos de duas Coleções Entomológicas e de duas coletas prévias em julho de 2003 e agosto de 2006. Um total de 273 espécies foi registrado em 464 horas e 15 espécies adicionais registradas a partir de Coleções Entomológicas, totalizando 288 espécies de borboletas registradas. A família mais rica foi Hesperiidae (108 espécies), seguida por Nymphalidae (80), Lycaenidae (43), Riodinidae (37), Pieridae (16) e Papilionidae (4). A fauna de borboletas foi dominada por espécies generalistas com uma ampla distribuição geográfica, muitas delas encontradas comumente em áreas abertas, bordas de mata e em vegetação secundária. Roeberella lencates (Hewitson, 1875) e Pheles atricolor atricolor (Butler, 1871) (Riodinidae) representam um novo registro para o Nordeste do Brasil.

RESUMO

Two species of hairstreak butterflies from the genus Calycopis are known in the United States: C. cecrops and C. isobeon Analysis of mitochondrial COI barcodes of Calycopis revealed cecrops-like specimens from the eastern US with atypical barcodes that were 2.6% different from either USA species, but similar to Central American Calycopis species. To address the possibility that the specimens with atypical barcodes represent an undescribed cryptic species, we sequenced complete genomes of 27 Calycopis specimens of four species: C. cecrops, C. isobeon, C. quintana and C. bactra Some of these specimens were collected up to 60 years ago and preserved dry in museum collections, but nonetheless produced genomes as complete as fresh samples. Phylogenetic trees reconstructed using the whole mitochondrial and nuclear genomes were incongruent. While USA Calycopis with atypical barcodes grouped with Central American species C. quintana by mitochondria, nuclear genome trees placed them within typical USA C. cecrops in agreement with morphology, suggesting mitochondrial introgression. Nuclear genomes also show introgression, especially between C. cecrops and C. isobeon About 2.3% of each C. cecrops genome has probably (p-value < 0.01, FDR < 0.1) introgressed from C. isobeon and about 3.4% of each C. isobeon genome may have come from C. cecrops. The introgressed regions are enriched in genes encoding transmembrane proteins, mitochondria-targeting proteins and components of the larval cuticle. This study provides the first example of mitochondrial introgression in Lepidoptera supported by complete genome sequencing. Our results caution about relying solely on COI barcodes and mitochondrial DNA for species identification or discovery.

Assuntos

RESUMO

The natural history and morphology of the immature stages of the butterfly Thereus lomalarga Robbins, Heredia & Busby are described and illustrated. The food plant is Oryctanthus alveolatus (H.B.K.) Kuijt (Loranthaceae). Chaetotaxy of the first instar is described and compared with that of three locally studied Thereus species. Larvae have four instars, and the dorsal nectary organ becomes functional in the third instar. They are facultatively tended by ants belonging to seven genera that are attracted to O. alveolatus by floral disc nectaries, honeydew producing Hemiptera, and secretory wounds produced by Hemiptera on the fleshy inflorescence rachis. The average period from egg to eclosion under lab conditions was 35.68 days. Females emerged before males. Adults of both sexes feed on nectar from the flowers of the food plant and on hemipteran secretions; adults were not observed feeding on other flowers. Campopleginae and Chalcidinae were the most important parasitoids.

Assuntos

RESUMO

The phylogenetic position of a new high-elevation butterfly species, which we describe as Electrostrymon picoloro Prieto & Robbins, new species, is assessed. The ventral wing pattern and genitalic structures of this species are unique among Electrostrymon. This species is also unique among Electrostrymon in that it occurs, so far as is known, only in habitats above 2800 m elevation. A phylogenetic analysis places this species in Electrostrymon as the sister of a multi-species clade. The ancestors of E. picoloro appear to have colonized its high elevation habitat relatively early in the phylogenetic history of Electrostrymon, but the species then did not recolonize lower elevation habitats nor did it diversify into other extant species.

Assuntos

RESUMO

Description and phylogenetic analysis of the Calycopidina (Lepidoptera, Lycaenidae, Theclinae, Eumaeini): a subtribe of detritivores. The purpose of this paper is to establish a phylogenetic basis for a new Eumaeini subtribe that includes those lycaenid genera in which detritivory has been recorded. Morphological characters were coded for 82 species of the previously proposed "Lamprospilus Section" of the Eumaeini (19 of these had coding identical to another species), and a phylogenetic analysis was performed using the 63 distinct ingroup terminal taxa and six outgroups belonging to four genera. Taxonomic results include the description in the Eumaeini of Calycopidina Duarte & Robbins new subtribe (type genus Calycopis Scudder, 1876), which contains Lamprospilus Geyer, Badecla Duarte & Robbins new genus (type species Thecla badaca Hewitson), Arzecla Duarte & Robbins new genus (type species Thecla arza Hewitson), Arumecla Robbins & Duarte, Camissecla Robbins & Duarte, Electrostrymon Clench, Rubroserrata K. Johnson & Kroenlein revalidated status, Ziegleria K. Johnson, Kisutam K. Johnson & Kroenlein revalidated status, and Calycopis. Previous "infratribe" names Angulopina K. Johnson & Kroenlein, 1993, and Calycopina K. Johnson & Kroenlein, 1993, are nomenclaturally unavailable and polyphyletic as proposed. New combinations include Badecla badaca (Hewitson), Badecla picentia (Hewitson), Badecla quadramacula (Austin & K. Johnson), Badecla lanckena (Schaus), Badecla argentinensis (K. Johnson & Kroenlein), Badecla clarissa (Draudt), Arzecla arza (Hewitson), Arzecla tarpa (Godman & Salvin), Arzecla canacha (Hewitson), Arzecla calatia (Hewitson), Arzecla tucumanensis (K. Johnson & Kroenlein), Arzecla sethon (Godman & Salvin), Arzecla nubilum (H. H. Druce), Arzecla paralus (Godman & Salvin), Arzecla taminella (Schaus), Arzecla albolineata (Lathy), Electrostrymon denarius (Butler & H.Druce), Electrostrymon guzanta (Schaus), Electrostrymon perisus...

O objetivo desse trabalho é estabelecer a base filogenética para uma nova subtribo de Eumaeini incluindo os gêneros com registros de detritivoria. Foram codificados caracteres morfológicos para as 82 espécies previamente arroladas na Seção Lamprospilus de Eumaeini (19 delas tiveram codificação idêntica a outras espécies); posteriormente foi conduzida uma análise filogenética incluindo 63 táxons terminais do grupo interno e seis grupos-externos pertencentes a quatro gêneros. Como resultados taxonômicos incluem-se a descrição de Calycopidina Duarte & Robbins subtribo nova (gênero-tipo Calycopis Scudder, 1876) e o reconhecimento de Lamprospilus Geyer, Badecla Duarte & Robbins gênero novo (espécie-tipo Thecla badaca Hewitson), Arzecla Duarte & Robbins gênero novo (espécie-tipo Thecla arza Hewitson), Arumecla Robbins & Duarte, Camissecla Robbins & Duarte, Elecrostrymon Clench, Rubroserrata K. Johnson & Kroenlein revalidado, Ziegleria K. Johnson, Kisutam K. Johnson & Kroenlein revalidado e Calycopis. Nomenclaturalmente, Angulopina K. Johnson & Kroenlein, 1993 e Calycopina K. Johnson & Kroenlein, 1993 são consideradas inválidas e polifiléticas tal como foram propostas. Novas combinações incluem Badecla badaca (Hewitson), Badecla picentia (Hewitson), Badecla quadramacula (Austin & K. Johnson), Badecla lanckena (Schaus), Badecla argentinensis (K. Johnson & Kroenlein), Badecla clarissa (Draudt), Arzecla arza (Hewitson), Arzecla tarpa (Godman & Salvin), Arzecla canacha (Hewitson), Arzecla calatia (Hewitson), Arzecla tucumanensis (K. Johnson & Kroenlein), Arzecla sethon (Godman & Salvin), Arzecla nubilum (H. H. Druce), Arzecla paralus (Godman & Salvin), Arzecla taminella (Schaus), Arzecla albolineata (Lathy), Electrostrymon denarius (Butler & H. Druce), Electrostrymon guzanta (Schaus), Electrostrymon perisus (H. H. Druce), Rubroserrata mathewi (Hewitson), Rubroserrata ecbatana (Hewitson), Kisutam micandriana (K. Johnson) e Kisutam syllis (Godman...