Article
Entomology
Juan I. Urcola, Mariano C. Michat
Summary: This study provides the first description and illustrations of the larva of Suphisellus curtus, including detailed analysis of its head, legs, abdominal segment, and urogomphus. The distinct characteristics of this larva enable its easy differentiation from other known noterid larvae.
Article
Zoology
Mariano C. Michat, Yves Alarie, Cesar J. Benetti
Summary: We describe the larva of the diving-beetle genus Hemibidessus for the first time, based on the analysis of instars II and III of H. conicus. Detailed analyses of the morphometry and chaetotaxy of various body parts were conducted to identify distinguishing features of Hemibidessus larvae. The elongate legs armed with natatory setae and elongate urogomphi with numerous secondary setae are characteristic features of Hemibidessus larvae, which are also shared with Brachyvatus, suggesting a close phylogenetic relationship between these two genera.
Article
Multidisciplinary Sciences
Haruhiko Adachi, Makoto Ozawa, Satoshi Yagi, Makoto Seita, Shigeru Kondo
Summary: The last larval instars of Trypoxylus dichotomus burrow in two different ways depending on the hardness of the soil, which is thought to be an adaptation to diverse soil conditions. These results are crucial for understanding soil ecology and pose a challenge for engineers developing newer excavation technology.
SCIENTIFIC REPORTS
(2021)
Article
Zoology
Juan I. Urcola, Yves Alarie, Cesar J. Benetti, Patricia I. M. Torres, Mariano C. Michat
Summary: This study describes and illustrates all larval instars of Hydrocanthus debilis, including morphometric and chaetotaxic analyses. The larvae of this species have small dark dorsal maculae, which distinguishes them from other known species of the genus. They can be easily differentiated from larvae of H. socius by their smaller size, the length of parietal seta PA13 relative to seta PA14, and the relative distance between egg bursters.
Article
Multidisciplinary Sciences
Joachim Schmidt, Stephan Scholz, Juergen Wiesner, Kipling Will
Summary: The study reveals that certain insect species have a longer lifespan, with the oldest insect fossils dating back to the Oligocene and Eocene periods. Through the use of imaging techniques, researchers confirm that a century-old tiger beetle fossil belongs to an extinct ancestral lineage. Reviewing tiger beetle fossils from Cretaceous and Paleogene deposits, the study finds no evidence supporting the assignment of these fossils to current lineages. The findings are crucial in calibrating the divergence dating of beetle phylogenies.
SCIENTIFIC REPORTS
(2023)
Article
Entomology
Enrico Ruzzier, Marcin Kadej, Andrea Di Giulio, Andrea Battisti
Summary: Larvae of Dermestidae Megatominae possess modified setae, called hastisetae, which serve as the primary defense against predators and are important contaminants of stored products and environments. Exposure to hastisetae can cause allergic reactions in humans. The study aims to increase knowledge about hastisetae, explore their diversity and morphology, and propose potential implications for the systematics of skin beetles.
Article
Anatomy & Morphology
Xia Shi, Su-Fang Zhang, Fu Liu, Zhen Zhang, Fang-Ying Xu, Shu-Yan Yin, Xiang-Bo Kong
Summary: The study used scanning electron microscopy to examine the sensilla on the antennae and mouthparts of adult Ips typographus, identifying ten subtypes of antennal sensilla and thirteen mouthpart sensilla subtypes. The findings provide insights into the insect-host chemical communication mechanism and feeding choices.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Anatomy & Morphology
Mayuri Kashinath Shewale, Jana Nebesarova, Ewald Grosse-Wilde, Blanka Kalinova
Summary: In this study, the sensilla types on the antennal surface of the double-spined spruce bark beetle were analyzed using high-resolution-scanning electron microscopy. Five different types of sensilla were identified, with minor differences between males and females. This study provides a foundation for future electrophysiological research on how the beetle detects ecologically important olfactory cues.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Evolutionary Biology
Karen Salazar, Ademaria Novais, Jose Lino-Neto, Jose Eduardo Serrao
Summary: This study investigated the sperm characteristics of Gyretes sp., a whirligig beetle, and found that its sperm has unique structures that distinguish it from other Adephaga species. The formation of secondary sperm aggregates may play an important role in reproduction and gene transfer.
ORGANISMS DIVERSITY & EVOLUTION
(2022)
Article
Entomology
Valerio Saitta, Manuela Rebora, Silvana Piersanti, Elena Gorb, Stanislav Gorb, Gianandrea Salerno
Summary: This study investigates the attachment ability of the oligophagous melon ladybird beetle Chnootriba elaterii to leaves of several Cucurbitaceae species. The findings suggest that glandular trichomes do not affect insect attachment ability, but dense, short, and flexible non-glandular trichomes heavily reduce the attachment ability of both adult and larval insects. Understanding the mechanical interaction and chemical cues involved in host plant selection can help unravel the complex coevolution between phytophagous insects and their host plant species.
Article
Paleontology
Zhenyu Song, Edmund A. Jarzembowski, Chuantao Xiao
Summary: This article describes a new species of Hujia rolfi gen. et. sp. nov, the first tiger beetle found in mid-Cretaceous Kachin amber, and the earliest record of the Manticorini tribe in Asia, extending the origin time for the tribe.
PALAEONTOGRAPHICA ABTEILUNG A-PALAOZOOLOGIE-STRATIGRAPHIE
(2022)
Article
Neurosciences
Bjoern Trebels, Stefan Dippel, Janet Anders, Clara Ernst, Brigitte Goetz, Tim Keyser, Karl Heinz Rexer, Ernst A. Wimmer, Joachim Schachtner
Summary: Previously, it was believed that the paired antennal lobes were the only primary processing centers for olfactory input in holometabolous insects. However, we have discovered that in the red flour beetle Tribolium castaneum, olfactory input from the palps is also processed separately at distinct neuronal centers. The antennal olfactory sensory neurons project into the antennal lobes, while the palps project into the paired glomerular lobes and the unpaired gnathal olfactory center.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2023)
Article
Microscopy
Xia Shi, Su Fang Zhang, Fu Liu, Fang Ying Xu, Feng Bi Zhang, Xiao Bin Guo, Zhen Zhang, Xiang Bo Kong
Summary: The study examined the types, distributions, and abundances of various sensilla associated with the mouthparts and antennae of the Asian larch bark beetle, Ips subelongatus. No sexual dimorphism in sensilla type or distribution on the mouthparts or antennae was observed between the sexes of I. subelongatus. However, specific differences in abundance of certain sensilla subtype were found between males and females.
Article
Biotechnology & Applied Microbiology
Inanc Ozgen, Mehmet Mamay, Ertan Yanik
Summary: By releasing adults of the lady beetle Oenopia conglobata in pistachio orchards in Turkey, the population of the common pistachio psylla can be effectively controlled, with the most effective method being the release of 100 adults per tree.
BIOLOGICAL CONTROL
(2022)
Article
Microbiology
Bruna Grosch Schroeder, Washington Logrono, Ulisses Nunes da Rocha, Hauke Harms, Marcell Nikolausz
Summary: The larvae of Pachnoda marginata have a complex gut microbiota capable of converting lignocellulosic biomass effectively. Enrichment cultures were established using wheat straw as a substrate in an alkaline medium from the midgut and hindgut contents of the beetle larva under mesophilic conditions. The inoculum preparation method significantly influenced methane production and acetic acid concentrations in the cultures. Dysgonomonadaceae, Heliobacteriaceae, Ruminococcaceae, and Marinilabiliaceae were found to be the most abundant bacterial families, while Methanobrevibacter, Methanoculleus, and Methanosarcina were the most abundant methanogenic genera. The findings suggest that incomplete conversion of volatile fatty acids to methane may occur in samples processed with certain inoculation preparations.
Article
Entomology
Yves Alarie, Mariano C. Michat, Chris H. S. Watts
COLEOPTERISTS BULLETIN
(2020)
Article
Zoology
Cesar J. Benetti, Luis F. Valladares, Juan A. Delgado, Neusa Hamada
Summary: Undescribed morphological features of Adelphydraena amazonica Perkins & Ribera, 2020 are provided, based on material collected in the type locality (Amazonas State, northern Brazil). Aedeagus, male sternite X, last female abdominal segments and spermatheca are illustrated and described for the first time. Additionally, habitat information on the type locality is included, along with new records on two Brazilian Hydraenidae species.
Article
Entomology
Cesar J. Benetti, Andrew Edward Z. Short, Neusa Hamada
Summary: The study reports the first finding of three new species of the genus Belladessus in Brazil. The discovery of these new species expands the geographic distribution of the genus.
COLEOPTERISTS BULLETIN
(2021)
Article
Zoology
Cesar J. Benetti, Luis F. Valladares, Juan A. Delgado, Neusa Hamada
Summary: Hydraena (Hydraenopsis) bahiana sp. nov., a new species belonging to the leechi group's Hydraena scintillabella subgroup, is described in this study. Detailed descriptions, diagnostic characters, and habitat information are provided.
Article
Zoology
Mariano C. Michat, Yves Alarie, Cesar J. Benetti
Summary: We describe the larva of the diving-beetle genus Hemibidessus for the first time, based on the analysis of instars II and III of H. conicus. Detailed analyses of the morphometry and chaetotaxy of various body parts were conducted to identify distinguishing features of Hemibidessus larvae. The elongate legs armed with natatory setae and elongate urogomphi with numerous secondary setae are characteristic features of Hemibidessus larvae, which are also shared with Brachyvatus, suggesting a close phylogenetic relationship between these two genera.
Article
Zoology
Cesar J. Benetti, Neusa Hamada
Summary: This study compiles a checklist of known species of the water beetle Hydraenidae recorded from Brazil, totaling 34 species distributed in four genera. A comprehensive account of the nomenclature, including synonyms and historical name combinations, is provided for each taxon. The habitats (when known) and geographical distribution of each species, organized by Brazilian states, are also presented.
Article
Zoology
Juan I. Urcola, Yves Alarie, Cesar J. Benetti, Patricia I. M. Torres, Mariano C. Michat
Summary: This study describes and illustrates all larval instars of Hydrocanthus debilis, including morphometric and chaetotaxic analyses. The larvae of this species have small dark dorsal maculae, which distinguishes them from other known species of the genus. They can be easily differentiated from larvae of H. socius by their smaller size, the length of parietal seta PA13 relative to seta PA14, and the relative distance between egg bursters.
Article
Zoology
Larissa Santana, Andrew Edward Z. Short, Cesar Joao Benetti, Neusa Hamada
Summary: The species of the water scavenger beetle genus Oocyclus Sharp in the Guiana Shield region of South America are reviewed and described, with new species and new records reported. The aedeagus of O. coromoto Short & Garcia is illustrated for the first time. A key to the Oocyclus of the Guiana Shield is provided.
Article
Entomology
Juan I. Urcola, Mariano C. Michat
Summary: This study provides the first description and illustrations of the larva of Suphisellus curtus, including detailed analysis of its head, legs, abdominal segment, and urogomphus. The distinct characteristics of this larva enable its easy differentiation from other known noterid larvae.
Article
Entomology
Juan I. Urcola, Cesar J. Benetti, Yves Alarie, Matias R. Urcola, Mariano C. Michat
Summary: We described the first and third larval instars of Hydrocanthus levigatus, including morphometric and chaetotaxic analyses of various body parts. The larvae of this species have similar dorsal maculae as H. socius and H. debilis. However, there are differences in size and setae patterns that allow for distinguishing between the first instar larvae of H. levigatus and those of H. socius and H. debilis. Additionally, the third instar of H. levigatus has a greater number of secondary setae on the legs compared to H. socius and H. debilis.
Article
Biochemistry & Molecular Biology
Raquel L. Carvalho, Angelica F. Resende, Jos Barlow, Filipe M. Franca, Mario R. Moura, Rafaella Maciel, Fernanda Alves-Martins, Jack Shutt, Cassio A. Nunes, Fernando Elias, Juliana M. Silveira, Lis Stegmann, Fabricio B. Baccaro, Leandro Juen, Juliana Schietti, Luiz Aragao, Erika Berenguer, Leandro Castello, Flavia R. C. Costa, Matheus L. Guedes, Cecilia G. Leal, Alexander C. Lees, Victoria Isaac, Rodrigo O. Nascimento, Oliver L. Phillips, Fernando Augusto Schmidt, Hans ter Steege, Fernando Vaz-de-Mello, Eduardo M. Venticinque, Jansen Zuanon, Joice Synergize Consortium, Joice Ferreira
Summary: Biodiversity loss is a major challenge of our time and understanding how ecological communities respond to environmental change is crucial. Despite the availability of global databases, research in tropical regions, especially in the Amazon rainforest, is lacking. This study shows that a significant percentage of understudied areas in the Brazilian Amazonia are vulnerable to climate and land use changes, highlighting the urgent need for action. Rating: 8/10.
Article
Zoology
Kelly B. Miller, Cesar J. Benetti, Mariano C. Michat
Summary: Miradessus genus is described and includes four species, two of which were previously known and two are newly discovered. The genus is characterized by various traits, such as the presence or absence of elytral striae, occipital line, and marginal bead on the anterior clypeal margin.
Article
Zoology
Jiri Hajek, Yves Alarie, Cesar J. Benetti, Neusa Hamada, Monika Springer, Lars Hendrich, Adrian Villastrigo, Rodulfo Ospina Torres, Michael S. Basantes, Michael Balke
Summary: This study investigates the aquatic macroinvertebrate diversity in tank bromeliads, focusing on the obligatorily bromeliadicolous species of the diving beetle genus Copelatus. The researchers describe three new species and discuss their distinct clade within the genus, as well as their adaptations for the 'hygrofloric' lifestyle.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Biodiversity Conservation
Juan I. Urcola, Cesar J. Benetti, Yves Alarie, Mariano C. Michat
JOURNAL OF NATURAL HISTORY
(2020)