Articles tagged with Insects
A study by UC Riverside researchers found that bed bug shed skins retain four pheromone compounds that can be used to detect and combat infestations. The findings suggest the development of small, inexpensive monitor traps to catch living bed bugs at early stages of infestation.
Researchers identified a key gene in vinegar flies responsible for their waterproof coating, which could provide a new way to control insect pests threatening agriculture and humans. By knocking out this gene, the insects lose their waxy coating and become more vulnerable to environmental stress.
A rare 50-million-year-old Baltic amber discovery shows an ancient insect, similar to a walking stick, escaping its skin and fleeing into freedom as tree sap flows over the remaining exoskeleton.
Hydroelectric dams can have devastating effects on aquatic insect populations and the food webs they support. Hydropeaking, which generates artificial tides to meet power needs, is a significant contributor to these environmental impacts.
Dr. Guanyang Zhang and colleagues describe 24 new assassin bug species from over 10,000 specimens, shedding light on the insects' behavior and taxonomy. The discovery highlights the importance of natural history collections in uncovering new species.
Researchers have developed a new method to observe and identify male and female tsetse flies using near infrared still photographs and time-lapse video. This technique could make the Sterile Insect Technique more efficient by sorting males and females earlier, allowing for easier sterilization and control of the fly population.
Flying insects have been found to move through the air in ways that contradict traditional aerodynamic theories used for airplane flight. Researchers at New York University discovered a new law that explains how insects generate thrust and manage drag, allowing them to double their flight speed with less effort.
Researchers at UC Santa Barbara have identified a new type of filament-forming protein in fruit flies that shares similarities with intermediate filaments in human cells. This discovery may provide insights into how insects survive without traditional IF proteins.
Researchers discovered that fungal blastospores can kill mosquito larvae rapidly, with specific characteristics contributing to their virulence. The study found that blastospore invasion can occur even in the presence of drugs inhibiting protease activity, making them a promising alternative to chemical pesticides.
Research reveals that a fly species uses cicada sounds to locate hosts, attracting both females and males for potential mating. The study found that hearing may have originated as a means of finding a host but has become useful in another way.
A new, rare blind planthopper species has been discovered exclusively in a Brazilian cave. The species, Iuiuia caeca, is a small, yellowish insect that measures only 3mm, and its unique characteristics make it essential for understanding subterranean biodiversity.
Fossil record reveals ancient insect behavior of debris-carrying and camouflage, providing insight into early evolution. Convergent evolution led to diverse adaptations in morphological characteristics.
A new study by Lund University finds that assortative mating actually breaks down the sexual barrier between closely related species, leading to potential hybridization and extinction. Large females' reproductive capacity explains their attractiveness to smaller males' species.
Researchers at Aarhus University have developed individual profiles of allergy reactivity in patients who are not protected after immunotherapy. They created artificial allergens that perfectly mimic the allergens in insect venom, which can be used to improve medical treatment for people allergic to insect stings.
A study by Colorado State University researchers reveals that tropical mayflies have a higher number of distinct species than their temperate-zone counterparts. The distinctions between these species consist of subtle, genetic differences that aren't readily visible to the naked eye.
Scientists have developed a new method to classify praying mantises by analyzing female genital characters. The research identified a new species from Madagascar and resurrected the genus Ilomantis, which was previously extinct. The discovery is significant as it sets a precedent for using female specimens in insect classification.
Researchers observe thousands of Hemiphlebia mirabilis in Australia, revealing a unique mating system and high sperm competition mechanisms. The species displays elaborate abdominal flicking displays, suggesting an advanced courtship behavior.
Researchers Richard Benton and Ben Lehner received the 2016 EMBO Gold Medal for their groundbreaking work on insect olfaction and developmental biology. They discovered novel genes in odorant receptors, shedding light on the evolution of scent perception, and revealed stochastic variances in gene expression driving phenotypic diversity.
Researchers found that birds learn to distinguish distasteful prey from tasty ones using sudden displays of conspicuous color. This strategy helps the distasteful prey avoid predation by making it harder for sensitive predators to spot them.
Researchers found that carnivorous bats evolved distinctive skull shapes and strong bite forces to consume vertebrate prey. Larger animal-munching bats had longer snouts for bigger prey, while fish-eating bats had optimized jaws for a narrow gape to break down sharp bones.
Researchers at the Boyce Thompson Institute discovered that potato plants boost chemical defenses in their leaves when Guatemalan tuber moth larvae feed on their tubers. This response protects against leaf-eating pests like beet armyworms, allowing plants to maintain sugar production and grow more tubers. The study may help reduce pota...
Researchers discovered Venus flytraps exploit common plant defense systems to capture insects, utilizing touch-sensitive trigger hairs and glands that promote insect digestion. The traps' gene expression patterns resemble those of roots, suggesting a nutrient uptake mechanism.
The Venus flytrap's carnivorous lifestyle is built on herbivore defense strategies, utilizing sensory hairs to capture prey. The plant's genes show a mix of leaf and root characteristics, with glands that supply digestive enzymes and nutrients.
Researchers studied how tree crickets adjust their ears to match the changing frequency of their song with rising temperatures. By analyzing nerve cell reactions and ear vibrations, they found that tree cricket ears can adapt at a cellular level to recognize specific frequencies.
A recent study found that hydropeaking, or the daily raising and lowering of river flows, has a devastating impact on aquatic insect abundance. The researchers discovered a clear correlation between hydropeaking and the number of insect species present, with certain insects being nearly absent in areas where they should have been present.
A new study by the USGS reveals that hydropeaking, a widespread practice in hydroelectric dam operations, can disrupt river food webs and harm aquatic insects. Alternative hydropower practices, such as leaving river levels low and stable during periods of minimal power production, may help mitigate these negative effects.
Hydroelectric dams devastate aquatic insect populations and food webs by creating an 'extensive intertidal zone' along river shorelines. Citizen science data show that species with river-edge egg laying behaviors have been largely extirpated from the Grand Canyon.
Research at the University of Bristol reveals that plant viruses can alter leaf surface properties to attract insects like greenfly. Infected leaves reflect less polarized light, making them more visible to bugs.
A newly discovered insect, Asiagomphus reinhardti, has been found in remote mountainous regions of Cambodia and Laos. The dragonfly, named after TU Dresden researcher Klaus Reinhardt, is characterized by a black body with yellow spots and green eyes.
Research has identified molecular clues driving the effectiveness of scorpion toxins, including the tuning that makes them more toxic to insects. The study found eight protein hot spots indicative of adaptive evolution, which could lead to promising new candidates for insecticides.
A new study by Swiss zoologists found that urban moths have learned to avoid light due to high mortality rates in rural populations. The researchers observed a significant decrease in flight-to-light propensity among moths exposed to heavy light pollution.
A new Bt technology could provide improved control of thrips and plant bugs in cotton, reducing the need for insecticide applications. The treatment has shown better plant protection than alternative strategies in field tests.
A low-cost, eco-friendly trap lures female mosquitoes to lay eggs in a specially designed 'ovillanta' made from recycled tires. The system has been shown to reduce virus-carrying mosquito populations by capturing and destroying their eggs.
Global research collaborations study harlequin ladybird's invasion history and ecology, highlighting its ability to thrive in various habitats. Citizen science projects provide valuable information on the spread of invasive alien species, inspiring new approaches to surveying and monitoring.
A new analysis suggests that malaria evolved in insects over 100 million years ago, with the first vertebrate hosts being reptiles and later dinosaurs. Understanding this ancient history may hold clues to interrupting malaria transmission through its most common vector, the Anopheles mosquito.
A Dartmouth-led study found that stream insects consumed by spiders transfer methylmercury to terrestrial predators, highlighting the importance of dissolved organic carbon in mediating mercury bioavailability. The research reveals a broader reach of mercury contamination than previously recognized.
Researchers have discovered a complex alarm signaling system in Western Flower Thrips, which varies depending on the level of danger faced. The study found that the composition of the alarm pheromone changes when a predator is present but not attacking versus when attacked.
Researchers designed a contact lens that adjusts its focus using a bioinspired retina structure, inspired by the elephant nose fish's ability to spot predators. The lens is powered by a small solar cell and can capture images under low-light conditions, offering a potential solution for people with presbyopia.
Researchers from Max Planck Institute for Chemical Ecology discovered that stick insects have enzymes capable of degrading complex plant cell wall components, including xyloglucan. This discovery marks the first known xyloglucanase of any kind to be found in multicellular animals.
The UMass Amherst entomologist is documenting the spread of the insect in Mexico to assess its impact on native plant diversity. The cycad aulacaspis scale threatens Mexico's 55 species of cycads, which are culturally important and vulnerable to extinction.
The African Postharvest Losses information System (APHLIS) will be upgraded to monitor other crops, improving postharvest management. The new system will provide data on crop quality, income, and nutrition, enabling strategic targeting of investment in loss mitigation and R&D programmes.
Researchers recommend reducing water usage for agriculture, using less road salt, and routing urban salt discharges to minimize freshwater damage. High salt levels can be toxic to aquatic organisms and kill fish and other food sources.
A recent study found that corn plants may prioritize defense against caterpillars over aphids, potentially making them more susceptible to aphid attacks. This metabolic trade-off could lead to the development of new corn varieties with naturally increased resistance to certain insects.
A new caddisfly species, Drusus sharrensis, has been discovered in Kosovo's Sharr National Park. The discovery highlights the country's unique biodiversity hotspot and raises concerns about the impact of human activities on aquatic ecosystems.
Researchers discovered that Venus flytraps use action potentials to determine the size and nutrient content of struggling prey. The plants then balance the cost and benefit of hunting by adjusting their production of costly ingredients.
A new genus and species of 'horned necked' praying mantis, Cornucollis masoalensis, has been discovered in a French museum collection. The insect features distinctive speckled patches on its head and pale color with opaque wings, suggesting it dwells on the undersides of leaves.
Scientists have discovered four new fungus gnat species in the Scandinavian north, shedding light on regional insect diversity. The newly described taxa represent a small fraction of the numerous undescribed northern fly species, with more awaiting formal description.
Researchers at the University of Notre Dame have developed a novel method for noninvasive genetic sampling using spider webs. This approach enables biomonitoring without direct observation or disturbance of target organisms, with potential applications in conservation research, pest management, and biogeography studies.
Researchers at Newcastle University have confirmed that praying mantises use 3D vision to hunt, with a new model to improve visual perception in robots. The team used custom-made glasses with one blue and one green lens to show insects any desired images.
Researchers found that maintaining potassium levels low in an insect's blood is crucial for survival during cold exposure. The study, published in Scientific Reports, suggests that the Malpighian tubules play a key role in regulating salt balance in insects.
A recent survey of praying mantises in Rwanda revealed a significant increase in species diversity, with 28 new records added to the country and 20 new regional records discovered. The study highlights the importance of further research into insect fauna in Rwanda's national parks.
Researchers have discovered that aphids deplete all the amino acids in sugary sap they consume and then break them down to build essential amino acids from scratch. This process allows the insects to survive on an unbalanced diet, similar to other animals with gut microbes or symbionts that provide additional nutrition.
In Texas, a citizen science program utilizing public surveillance tracked the distribution and infection prevalence of triatomine insects, showing 63% infected with Trypanosoma cruzi. The study suggests that citizen collections are a valid way to document insect distribution, providing a unique sample for disease vector studies.
Researchers identify five chemicals that trigger rice plants to fend off white-backed planthoppers, reducing the need for pesticides. The chemicals, phenoxyalkanoic acid derivatives, have shown potential in controlling insect pests and protecting ecosystems.
A new special volume compiles research on tephritid fruit flies, a major agricultural pest worldwide. The study resolves species boundaries using multiple lines of evidence, improving the application of biologically-based pest control methods for international horticultural trade.
A new study reveals helpful bacteria living inside the Asian citrus psyllid affect its ability to spread the citrus greening disease pathogen. The infection alters the insect's metabolism and triggers an immune response, potentially increasing the pathogen's transmission.
Researchers identify unique expansions of gene families related to chemoreception and feeding in Rhodnius prolixus, the kissing bug that transmits Chagas disease. These findings may lead to novel approaches for controlling or eliminating the disease by targeting specific genes or processes.
Researchers found that cockroaches activate slow twitch muscle fibers only when chewing on tough material, generating a bite force of up to 50 times stronger than their body weight. This unique ability allows them to efficiently exert powerful forces with minimal head volume required.
Researchers discover Black mouse-eared bat consumes fruits, contradicting previously believed strict insectivorous diet. The finding may suggest the species plays a role as a seed disperser and highlights the complexity of Neotropical bats' eating habits.
A study published in ZooKeys found that smaller stonefly species were more capable of recolonizing Isle Royale Island due to their better flight abilities. In contrast, larger stoneflies struggled to cross the lake despite being well-suited for aquatic environments.