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Diversity of flesh flies (Diptera: Sarcophagidae) in an Atlantic forest fragment in Rio das Ostras, RJ, Southeastern Brazil
2021
Marina Morim Gomes | Cátia Antunes de Mello-Patiu
Sarcophagidae is a family of Diptera with medical-veterinary importance, which have species with sarcosaprophagous, necrophagous or causing-myiasis larvae, among others. The Brazilian state of Rio de Janeiro has 92 municipalities, but only 26 have sarcophagid records and the municipality of Rio das Ostras is one of the least registered, with only nine species recorded. This works aimed to increase the knowledge of flesh fly diversity in a conservation unit of this municipality, the “Área de Relevante Interesse Ecológico de Itapebussus”. The study was conducted in restinga and semideciduous forest. We used modified Van Someren-Rydon traps baited with decayed fish, and the samples were taken in dry and rainy seasons. A total of 446 male sarcophagines of 18 species of the genera Oxysarcodexia, Peckia, Ravinia, Sarcofahrtiopsis, and Titanogrypa were collected. We found 13 new records for the sampled municipality. The forest presented higher richness than the restinga and the most abundant species was Oxysarcodexia amorosa (Schiner). Diversity and equitability showed similar values in the two areas (H'f=2.193, H'r=2.027, J'f=0.7908 and J'r=0.7682) and the cluster analysis suggest high similarity. PERMANOVA did not present significant results for any source of variation. The presence of synanthropic and asynanthropic species in the fragment demonstrates that it is already a somewhat human-impacted environment. Marked increase in the number of sarcophagid records obtained in this small sample in the studied municipality (from nine to 22 species) shows the importance of taxonomic surveys in poorly studied areas.
Show more [+] Less [-]A new species of Aididae (Lepidoptera, Zygaenoidea) and the first record of the family for the Northern Region of Brazil
2021
Gilcélia Melo Lourido
A new species of Aididae is described and illustrated based on adults (male and female) and immature (last instar larvae). The larvae were found infesting leaves of Inga edulis Martius (Fabaceae) in the municipality of Autazes, State of Amazonas, representing the first record of Aididae in the northern region of Brazil. The new species is further compared with its closest species, Aidos amanda (Stoll, 1782).
Show more [+] Less [-]Record of tritrophic relationship between Syagrus coronata (Martius) Beccari (Arecaceae), Pachymerus nucleorum Fabricius (Coleoptera: Chrysomelidae: Bruchinae) and Heterospilus sp. (Hymenoptera: Braconidae) in the State of Alagoas, northeastern Brazil
2021
Jefferson Duarte de Melo | Suianne Oliveira dos Santos Cajé | Iracilda Maria de Moura Lima
Some conservation units in Brazil border urban areas, like the Catolé and Fernão Velho Environmental Protection Area (EPA) in the State of Alagoas. In urban areas, there is the habit of cultivating plants for landscape purposes, and Syagrus coronata (Martius) Beccari (Arecaceae), “Licuri” or “Ouricuri”, is a palm tree commonly used in ornamentation; a native species from Caatinga and Atlantic Forest biomes widely explored through time. Some insects have part of their development associated with plants, and Pachymerus nucleorum Fabricius (Coleoptera: Chrysomelidae: Bruchinae) has a close connection with some Arecaceae. Females usually lay eggs on the surface of fallen fruits and the immatures feed on the seed under the drupe endocarp; the larvae, even protected by the hard surface could be preyed by skilled parasitoid wasps. Here, the record of a tritrophic relationship between S. coronata, P. nucleorum, and a wasp of the genus Heterospilus (Hymenoptera: Braconidae) in an urbanized region of Alagoas, close to a remnant of Atlantic Forest of the Catolé and Fernão Velho EPA is communicated. Fruits were collected from the soil surface under the canopy of Licuri palms in the “Universidade Federal de Alagoas” A. C. Simões Campus and transported for laboratory monitoring. Either adults of Heterospilus parasitoid wasps and P. nucleorum beetles from some fruits were recorded. The specimens of S. coronata had seeds preyed upon by P. nucleorum close to a remnant of the Atlantic Forest. The record of a tritrophic relationship involving Heterospilus seems to indicate the tenacity of natural biological control.
Show more [+] Less [-]Victor Py-Daniel (1951-2021)
2021
Jansen Fernandes de Medeiros | Herbet Tadeu de Almeida Andrade | Felipe Arley Costa Pessoa
Occurrence of Phytophagous Scarabaeidae (Coleoptera) in a pasture area at the Balsamo municipality, São Paulo, Brazil
2021
Flavio Terradas Menis | Sérgio Roberto Rodrigues
Pasture areas have been decreasing over the years in Brazil, largely due to the expansion of agricultural areas, mainly in the Southeast region. Natural or planted pastures are subject to attack by insects that can become pests depending on their level of infestation and among them are the Scarabaeidae beetles. The scarce information on the species of this family existing in the region of Bálsamo (São Paulo) makes a study on the occurrence of these species necessary, thus generating data that can contribute to identification and information on possible existing pest species. During September 2018 to August 2019, collections of phytophagous Scarabaeidae species were done in pasture areas with a light trap. A total of 446 adults from the subfamilies Dynastinae, Melolonthinae and Rutelinae were collected. In Dynastinae the genera Bothynus, Coelosis, Cyclocephala, Chalepides and Actinobolus were collected, in Melolonthinae the genera Plectris and Liogenys and in Rutelinae the genera Anomala, Geniates, Leucothyreus, Lobogeniates, Byrsopolis and Trizogeniates were found. Among the species collected, some are described as pests in crops, including pastures, such as Liogenys suturalis Blanchard, which was the species that had the largest number of individuals during the collection period, being indicated as a species worthy of more detailed studies.
Show more [+] Less [-]Low-cost circular LED dome lighting system for Insecta (Hexapoda) image capture in self-assembly stereomicroscope
2021
André da Silva Ferreira | Freddy Bravo | Ivan Castro
The use of high-resolution images in studies of morphology, taxonomy and systematics has been increasingly frequent, especially in Insecta. However, suitable lighting systems are still very expensive and/or difficult to use. On the other hand, currently the use of 3D printers has helped to make lighting equipment more accessible for researchers to equip their laboratories. Here we present a low-cost circular LED dome lighting system for capturing scientific micro and macro photography on a self-assembly stereomicroscope. We also present the necessary components for making the dome, as well as the elements used to capture the photographs.
Show more [+] Less [-]Historical record on the Brazilian hawkmoths (Lepidoptera: Sphingidae) deposited in the Entomological Collection of the Museu de História Natural da Bahia (MHNBA) in Salvador, Bahia, Brazil
2021
Ramon Lima Ramos | Daniele Santos Lopes | Caroline Tito Garcia | Matheus Eduardo Trindade-Santos | Favízia Freitas de Oliveira
In this article we present the historical records of the Brazilian hawkmoths deposited in the Entomological Collection of the Museu de História Natural da Bahia (MHNBA-UFBA), including the historical Lepidoptera collection donated by Dr. Pedro de Araújo to the MHNBA-UFBA. The Sphingidae collection is composed of 243 specimens and represents 24 genera and 66 species. The historical collection consists of specimens captured between the years 1924 and 1934, and we also included to the collection specimens that were captured more recently, between 1982 and 2014. The subfamily Macroglossinae presented the greatest species richness and Smerinthinae the presented the least species richness. Of all of specimens in the collection, 151 came from São Paulo State (Brazil), 41 from Santa Catarina State, 50 from Bahia State and only one from Pernambuco State. Three topotypes were identified in the collection, namely: Eumorpha translineatus (Rothschild, 1895), Xylophanes crenulata Vaglia & Haxaire, 2009 and Xylophanes alineae Haxaire & Mielke, 2018.
Show more [+] Less [-]High diversity of bees detected in guarana crop and natural habitat due to the use of combined sampling methods
2021
Cristiane Krug | Juliana Hipólito | Karine Schoeninger | Matheus Montefusco | Flávia Batista Gomes | Marcio Luiz de Oliveira | Thiago Mahlmann
Bees are the main pollinators of native and agricultural plants. Identifying and knowing these insects responsible for the environmental service of pollination is essential for the maintenance and management of pollination in agricultural systems, especially in a high diversity biome as the Amazon rainforest. Some crops in this region are dependent of benefited by wild pollinators, especially native plants like guarana. To address methodological aspects of monitoring bee diversity, samplings were carried out in an agricultural environment (guarana crop, Paullinia cupana) surrounded by Amazon natural habitat at Manaus, Amazonas State. We used three combined methods (two passive traps: Malaise and yellow pan-traps, and one active: hand nets) in different periods, with the same number of samplings (12 each). In total, 4,143 native bees belonging to 171 species were sampled; 117 species (1,926 individuals) were collected with Malaise trap, 15 (91 individuals) with pan-traps, and 114 (2,126 individuals) through active sampling. Only seven species were common to all methods, 60 species on two methods and 104 species were unique to one sampling method (50 with Malaise, two with pan-traps, and 52 with hand nets). We reinforce the need for complementary sampling to known bee diversity as the best strategy here was the joint use of active samples and Malaise traps. Recently the concern with Amazon preservation has aroused worldwide interest, a fact that shreds of evidence the need for studies of biodiversity and taxonomy in several areas, since very little is known of this vast region.
Show more [+] Less [-]Butterflies (Lepidoptera: Papilionoidea) of the Restinga de Cabedelo National Forest, Paraíba State, Brazil
2021
Adalberto Medeiros | Emanoel Pereira Gualberto | Rafael Pereira Rodrigues | Solange Maria Kerpel
Restinga forests are plant formations that occur on plains of quaternary sandy deposits along the Brazilian coast. Despite historical reduction of the Restinga forests, little effort has been made to know the butterfly fauna of these areas. This paper is an important contribution to the butterfly’s knowledge, being the second inventory in the Restinga forest of northeastern Brazil. The survey was conducted in the Restinga de Cabedelo National Forest (FLONA de Cabedelo, following the Portuguese abbreviation) and aimed to provide preliminary information on the butterflies richness in this region. A total of 89 butterfly species and 1,503 individuals were recorded at FLONA de Cabedelo. Hesperiidae was the richest family (34 species), followed by Nymphalidae (33) Pieridae (eight), Lycaenidae (seven), Riodinidae (five), and Papilionidae (two). In general, the butterfly fauna of the FLONA de Cabedelo is dominated by species widely distributed and commonly found in open or forested areas in Brazil. Five species are new records in Paraíba state: Calydna sturnula (Geyer), Theope foliorum (Bates), Cogia hassan (Butler), Vehilius inca (Scudder), and Chiothion asychis (Stoll). We suggest carrying out monthly samplings which will certainly increase the list of species herein presented.
Show more [+] Less [-]Sampling methods and metereological factors on pests and beneficial organisms in strawberries
2021
Alessandra Benatto | Mireli Trombin de Souza | Michele Trombin de Souza | Atila Francisco Mógor | Ida Chapaval Pimentel | Maria Aparecida Cassilha Zawadneak
We characterize the population dynamics of pests and beneficial organisms in strawberries to assess the impact of two meteorological factors (temperature and precipitation) and define the most appropriate method for monitoring insects in strawberries crop. Population dynamics were monitored weekly using the plant beat method and Möericke traps in Albion strawberries. Measurements were taken in organic strawberry farms over two growing seasons, from March 26, 2010 to August 23, 2010 (first season - 2009/2010) and from October 4, 2010 to March 21, 2011 (second season - 2009/2010) in the municipality of Pinhais, Paraná state, southern Brazil (25º25'S; 49º08'W). We collected a total of 7,971 pests and 1,987 beneficial organisms. The most abundant pests were Chaetosiphon fragaefolii (Cockerell) (Hemiptera: Aphididae) in the first growing season and Tetranychus urticae (Koch) (Acari: Tetranychidae) in the second. Beneficial organisms from Acari, Araneae, and Hymenoptera parasitoids predominated in both seasons. Temperature and precipitation were the the primary climatic factor associated with the population variation of aphids. Populations of C. fragaefolii grew when the temperature was between 16°C and 25ºC. We found that plant beat was the fastest and most suitable method for strawberry pests monitoring since it captured insects that were effectively colonizing the plants. This study contributes to a better understanding of the entomofauna associated with cultivation of organic strawberry.
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