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Damage from Sinoxylon anale Lesne, a woodboring beetle not previously known to be established in Brazil, was observed in young jabuticaba trees (Plinia cauliflora, Myrtaceae) in a nursery in the municipality of Laranjal Paulista, state of São Paulo. We immediately advised MAPA ("Ministério da Agricultura, Pecuária e Abastecimento") and collected samples from the nursery and from different hosts in nearby areas, to identify the specimens and investigate the dynamics of the infestation in the jabuticaba trees. Sinoxylon anale was also collected in ethanol-baited and ultraviolet-light traps and in dry branches of the native species pau-jacaré (Piptadenia gonoacantha, Fabaceae) and inga (Inga vera, Fabaceae), and the exotic pau-d'água (Dracaena fragrans, Asparagaceae) in the municipality of Piracicaba, state of São Paulo. These collections established that S. anale larvae and adults develop in dead branches of four new host plants. Taxonomic studies using morphological parameters and DNA barcoding confirmed the identification of S. anale. An illustrated key to the three Sinoxylon species now recorded in Brazil is provided, and the COI gene sequences have been made available in a public database. Sinoxylon anale probably attacked the young jabuticaba trees after they were killed by larvae of long-horned beetles (Cerambycidae). So far, S. anale has been found established only in two locations in the same area of the state of São Paulo.
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Escarabajos , Fabaceae , Myrtaceae , Animales , Brasil , Larva , ÁrbolesRESUMEN
Climate change is impacting agriculture in many ways, and a contribution from all is required to reduce the imminent losses related to it. Recently, it has been shown that citizen science could be a way to trace the impact of climate change. However, how can citizen science be applied in plant pathology? Here, using as an example a decade of phytoplasma-related diseases reported by growers, agronomists, and citizens in general, and confirmed by a government laboratory, we explored how to better value plant pathogen monitoring data. Through this collaboration, we found that in the last decade, 34 hosts have been affected by phytoplasmas; 9, 13, and 5 of these plants were, for the first time, reported phytoplasma hosts in eastern Canada, all of Canada, and worldwide, respectively. Another finding of great impact is the first report of a 'Candidatus Phytoplasma phoenicium'-related strain in Canada, while 'Ca. P. pruni' and 'Ca. P. pyri' were reported for the first time in eastern Canada. These findings will have a great impact on the management of phytoplasmas and their insect vectors. Using these insect-vectored bacterial pathogens, we show the need for new strategies that can allow fast and accurate communication between concerned citizens and those institutions confirming their observations.[Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Ciencia Ciudadana , Phytoplasma , Phytoplasma/genética , CanadáRESUMEN
Two new species of fleas of genus Ectinorus (Siphonaptera: Rhopalopsyllidae) are described from sigmodontine rodents (Rodentia: Cricetidae) collected during a survey of small mammals in northwestern Argentina.The new species belong to the subgenus Ectinorus and can be distinguished from all other species of the subgenus by the characteristics of the modified abdominal segments and by the genitalia. Moreover, the male of Ectinorus (Ectinorus) disjugis is described for the first time and the finding of this flea parasitizing the rodent Akodon spegazzinii, constitutes a new flea-host association. A phylogenetic analysis of the genus Ectinorus, using traditional morphological characters and morphogeometric data, is presented to support the erection of the new species of Ectinorus. An identification key for all species of Ectinorus is also provided. Our study increases to 38 the total number of species of the subgenus Ectinorus, and to 20 the number for Argentina. Phylogenetic analyses reveal that Ectinorus is monophyletic but the subgenera are not. This study offers a new interpretation of morphological diversity within the genus as well as an evaluation of hypotheses about their relationships.
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Sigmodontinae/parasitología , Siphonaptera/anatomía & histología , Animales , Argentina , Femenino , Masculino , FilogeniaRESUMEN
Abstract The objective of this work was to evaluate the diversity of ticks associated with free-living animals and to investigate new host records for ticks. Ticks were collected from animals rescued during the flood of the Jamari River in the municipality of Ariquemes, state of Rondônia, North Region of Brazil. A total of 39 animals were captured, out of which 10 were amphibians, 19 were reptiles and 10 were mammals. A total of 127 ticks of the Amblyomma genus were collected from these animals, distributed among seven species: Amblyomma dissimile, Amblyomma geayi, Amblyomma humerale , Amblyomma longirostre, Amblyomma nodosum , Amblyomma rotundatum and Amblyomma varium. In addition, one specimen of Rhipicephalus (Boophilus) microplus was collected. Among these specimens, 85 were adults and 42 were nymphs, with A. rotundatum being the most prevalent species. An Amblyomma spp. larvae was also collected from a lizard (Uranoscodon superciliosus), and one Amblyomma calcaratum and one Amblyomma dubitatum were recovered from the environment, thus totaling 130 ticks. Among the Ixodidae collected from different hosts, we provide the first report for the species A. rotundatum parasitizing Rhinella major, U. superciliosus, Leptophis ahaetulla, Chironius multiventris, and Mastigodryas boddaerti, as well as of A. humerale parasitizing U. superciliosus, A. geayi parasitizing Choloepus didactylus, and Rhipicephalus (B.) microplus parasitizing Alouatta puruensis.
Resumo O objetivo deste trabalho foi avaliar a diversidade de carrapatos associados à animais de vida livre e investigar novos registros de hospedeiros. Coletas foram feitas em animais resgatados durante a cheia do Rio Jamari, localizado no município de Ariquemes, estado de Rondônia, Região Norte do Brasil. Um total de 39 animais foi capturado, dos quais dez eram anfíbios, 19 eram répteis e dez eram mamíferos. 127 carrapatos do gênero Amblyomma foram coletados destes animais, distribuídos em sete espécies: Amblyomma dissimile , Amblyomma geayi, Amblyomma humerale, Amblyomma longirostre, Amblyomma nodosum, Amblyomma rotundatum e Amblyomma varium. Adicionalmente, um exemplar de Rhipicephalus (Boophilus) microplus foi coletado. Dentre estes espécimes, 85 eram adultos e 42 eram ninfas, com A. rotundatum sendo a espécie mais prevalente. Uma larva de Amblyomma spp. também foi coletada de um lagarto (Uranoscodon superciliosus), um Amblyomma calcaratum e um Amblyomma dubitatum foram recuperados do ambiente, assim totalizando 130 carrapatos. Dentre os ixodídeos coletados de diferentes hospedeiros, este trabalho fornece o primeiro registro da espécie A. rotundatum parasitando Rhinella major, U. superciliosus, Leptophis ahaetulla, Chironius multiventris e Mastigodryas boddaerti, assim como da espécie A. humerale parasitando U. superciliosus , a espécie A. geayi parasitando Choloepus didactylus e R. microplus parasitando Alouatta puruensis .
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Animales , Masculino , Femenino , Ixodidae/fisiología , Interacciones Huésped-Parásitos , Animales Salvajes/parasitología , Brasil , BosquesRESUMEN
Bark and ambrosia beetles from the subfamily Scolytinae are among the most important pests in forests of Northern Iran. During investigations conducted in 2013-2016 in different parts of northern forests, the species Crypturgus cribrellus Reitter, Liparthrum bartschti Mühl, Scolytus varshalovitchi Michalski, Scolytus sulcifrons Rey, Scolytus triarmatus (Eggers) and Trypophloeus granulatus (Ratzeburg) were recorded for the first time in Iran; Trypophloeus and Liparthrum were new genera for Iran. As new host plants we found Zelkova sp. for Scolytus varshalovitchi, Michalski, Populus sp. for Liparthrum bartschti, Mühl, Alnus sp. and Pterocarya fraxinifolia for Taphrorychus lenkoranus Reitter, Pterocarya fraxinifolia for Ernoporicus caucasicus (Lindemann), Carpinus sp. for Pteleobius vittatus (Fabricius), Parrotia persica for Scolytus intricatus (Ratzeburg), Alnus sp. and Pterocarya fraxinifolia for Hypothenemus eruditus (Westwood).
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Escarabajos , Animales , Bosques , Irán , GorgojosRESUMEN
BACKGROUND: A key to the East Palaearctic and northern Oriental species of Rhysipolis Foerster, 1862 (Hymenoptera: Braconidae: Rhysipolinae) is presented. Rhysipolis longicaudatus Belokobylskij, 1994 (stat. nov.) is redescribed, the first host records are given and it is reported new for China. NEW INFORMATION: Rhysipolis longicaudatus was reared from Taleporia sp. (Lepidoptera: Psychidae) in Inner Mongolia Autonomous Region and from Bazaria turensis Ragonot (Lepidoptera: Pyralidae) in Qinghai Province.
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The aim of this paper is to record new hosts for Ixodes luciae Sénevet in the State of Para, Brazil, and present a case of malformation (teratogeny) in a nymph of this species. The new host records are Marmosa murina (parasitized by females) and Philander opossum (parasitized by nymphs). One of these nymphs showed malformation in the posterior margin of the opisthosoma resulting in a heart shaped posterior end.
O objetivo deste trabalho foi registrar novos hospedeiros para Ixodes luciae Sénevet no estado do Pará, Brasil, e um caso de malformação em uma ninfa dessa espécie de carrapato. Os novos hospedeiros são Marmosa murina (parasitado por fêmeas) e Philander opossum (parasitado por ninfas). Uma dessas ninfas apresentou uma malformação na parte posterior do opistossoma em forma de coração.