PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Unknown midge mystery solved

Unknown midge mystery solved
2015-06-18
(Press-News.org) Revisiting original types and DNA analysis exposed hidden diversity in minute non-biting midges. Two species new to science were discovered and one misapprehended species was removed by following the traces back to the source in Brussels. The study was published in the open access journal ZooKeys.

"Nobody suspected a mystery until we solved it", says Elisabeth Stur, the senior author of the paper describing the misconception. - "Maybe even some will be upset that we discovered this long lasting misidentification".

It all started with Elisabeth Stur and Torbjørn Ekrem from the NTNU University Museum started to look at type material of species in the genus Gymnometriocnemus to put correct names on their Norwegian specimens. These were vouchers for DNA barcodes in the Barcode of Life Data Systems, thus correct identification was important.

"We were surprised to find that the types of one species was not at all what it was supposed to be according to current belief", Stur says. - "They belonged to a quite different genus, but previous revisers never checked the types". Thus, a completely wrong understanding of the species was commonly accepted among entomologists working with midges.

As a result of their investigation and DNA barcoding of midges collected through the Norwegian Taxonomy Initiative, two species new to science were also discovered.

"It is interesting that even in our relatively well documented area of the world, there still are new species to be discovered. Non-biting midges are fascinating creatures with an astonishing diversity and beauty - as long as you get them under the microscope" Stur adds.

INFORMATION:

Original Source:

Stur E, Ekrem T (2015) A review of Norwegian Gymnometriocnemus (Diptera, Chironomidae) including the description of two new species and a new name for Gymnometriocnemus volitans (Goetghebuer) sensu Brundin. ZooKeys 508: 127-142. doi: 10.3897/zookeys.508.9874


[Attachments] See images for this press release:
Unknown midge mystery solved

ELSE PRESS RELEASES FROM THIS DATE:

'Genomics holds key to understanding ecological and evolutionary processes'

2015-06-18
Scientists at the University of Southampton think that Next-Generation Sequencing (NGS) of invasive organisms holds the key to furthering our understanding of ecological and evolutionary processes. In a review of recent studies published in Current Zoology, the researchers say the technique is underutilised in the field of invasion biology. They believe NGS has the potential to transform our understanding of why non-native species adapt and thrive in new environments, often at the expense of their indigenous competitors. The key to the success of biological invasions ...

Ancient dental plaque reveals healthy eating and respiratory irritants 400,000 years ago

2015-06-18
New research conducted by archaeologists from the University of York and the Universitat Autònoma de Barcelona, in collaboration with members of Tel Aviv University, reveals striking insights into the living conditions and dietary choices of those who lived during the Middle Pleistocene some 300,000 - 400,000 years ago. The article, published in Quaternary International, describes the study in which samples of plaque were extracted from the teeth of three Lower Palaeolithic hominins who lived in Qesem Cave, Israel. Conducting optical and chemical analyses on the ...

Brain receptor found to significantly affect cocaine addiction

2015-06-18
BUFFALO, N.Y. -- Researchers at the University at Buffalo have discovered a previously unknown neural pathway that can regulate changes made in the brain due to cocaine use, providing new insight into the molecular basis of cocaine addiction. "Addiction is a life-long affliction manifested by episodes of relapse, despite prolonged abstinence," says Amy Gancarz, PhD, lead author of the study, which was published on June 1 in an Advance Online Publication in Nature Neuroscience. "There is a need to more fully understand the long-term molecular changes in the brain involved ...

Hubble views a bizarre cosmic quartet

Hubble views a bizarre cosmic quartet
2015-06-18
This new NASA/ESA Hubble Space Telescope image shows a gathering of four cosmic companions. This quartet forms part of a group of galaxies known as the Hickson Compact Group 16, or HCG 16 -- a galaxy group bursting with dramatic star formation, tidal tails, galactic mergers and black holes. This quartet is composed of (from left to right) NGC 839, NGC 838, NGC 835, and NGC 833 -- four of the seven galaxies that make up the entire group. They shine brightly with their glowing golden centres and wispy tails of gas [1], set against a background dotted with much more distant ...

Vanderbilt-led study finds significant drop in new prostate cancer diagnoses

2015-06-18
A new study led by Vanderbilt University Medical Center investigators found new diagnoses of prostate cancer in the U.S. declined 28 percent in the year following the draft recommendation from the United States Preventive Services Task Force (USPSTF) against routine PSA screening for men. The new research, led by first author Daniel Barocas, M.D., MPH, assistant professor of urological surgery and medicine, was posted online in the June 15 issue of The Journal of Urology in advance of publication. In October 2011, the USPSTF issued a draft guideline discouraging ...

Emotional brains 'physically different' to rational ones

2015-06-18
Researchers at Monash University have found physical differences in the brains of people who respond emotionally to others' feelings, compared to those who respond more rationally, in a study published in the journal NeuroImage. The work, led by Robert Eres from the University's School of Psychological Sciences, pinpointed correlations between grey matter density and cognitive and affective empathy. The study looked at whether people who have more brain cells in certain areas of the brain are better at different types of empathy. "People who are high on affective empathy ...

Female managers do not reduce the gender wage gap, study finds

2015-06-18
UNIVERSITY OF CALIFORNIA, BERKELEY'S HAAS SCHOOL OF BUSINESS--Working women are "leaning in" and supporting more females in leadership roles, but a new study finds that having a female manager doesn't necessarily equate to higher salaries for female employees. In fact, women can sometimes take an earnings hit relative to their male colleagues when they go to work for a female manager. "Agents of Change or Cogs in the Machine? Re-examining the Influence of Female Managers on the Gender Wage Gap"(American Journal of Sociology, forthcoming) is co-authored by Sameer B. Srivastava, ...

Scientists film shock waves in diamond

Scientists film shock waves in diamond
2015-06-18
This news release is available in German. Researchers have used ultra-short pulses of X-rays to film shock waves in diamonds. The study headed by DESY scientists opens up new possibilities for studying the properties of materials. Thanks to the extremely bright and short X-ray flashes, the researchers were able to follow the rapid, dynamic changes taking place in the shock wave with a high spatial as well as a high temporal resolution. The team around DESY physicist Prof. Christian Schroer is presenting its results in the journal Scientific Reports. "With our experiment ...

Sailing through changing oceans

2015-06-18
In the current context of Global Change, sustainable and responsible exploitation of the Oceans can be realised only through a deep understanding of the Ocean processes and of the associated ecosystems spanning every latitude of Planet Earth. This is the key concept advocated by a new position paper from the European Science Foundation. Sailing through Changing Oceans analyses long-term, mid-term and short-term climatic changes and associates a number of key processes and impacts from Antarctica to the Arctic via the Atlantic, which highly affect ecosystems and need to ...

Researchers design placenta-on-a-chip to better understand pregnancy

2015-06-18
National Institutes of Health (NIH) researchers and their colleagues have developed a "placenta-on-a-chip" to study the inner workings of the human placenta and its role in pregnancy. The device was designed to imitate, on a micro-level, the structure and function of the placenta and model the transfer of nutrients from mother to fetus. This prototype is one of the latest in a series of organ-on-a-chip technologies developed to accelerate biomedical advances. The study, published online in the Journal of Maternal-Fetal & Neonatal Medicine, was conducted by an interdisciplinary ...

LAST 30 PRESS RELEASES:

ASU researchers to lead AAAS panel on water insecurity in the United States

ASU professor Anne Stone to present at AAAS Conference in Phoenix on ancient origins of modern disease

Proposals for exploring viruses and skin as the next experimental quantum frontiers share US$30,000 science award

ASU researchers showcase scalable tech solutions for older adults living alone with cognitive decline at AAAS 2026

Scientists identify smooth regional trends in fruit fly survival strategies

Antipathy toward snakes? Your parents likely talked you into that at an early age

Sylvester Cancer Tip Sheet for Feb. 2026

Online exposure to medical misinformation concentrated among older adults

Telehealth improves access to genetic services for adult survivors of childhood cancers

Outdated mortality benchmarks risk missing early signs of famine and delay recognizing mass starvation

Newly discovered bacterium converts carbon dioxide into chemicals using electricity

Flipping and reversing mini-proteins could improve disease treatment

Scientists reveal major hidden source of atmospheric nitrogen pollution in fragile lake basin

Biochar emerges as a powerful tool for soil carbon neutrality and climate mitigation

Tiny cell messengers show big promise for safer protein and gene delivery

AMS releases statement regarding the decision to rescind EPA’s 2009 Endangerment Finding

Parents’ alcohol and drug use influences their children’s consumption, research shows

Modular assembly of chiral nitrogen-bridged rings achieved by palladium-catalyzed diastereoselective and enantioselective cascade cyclization reactions

Promoting civic engagement

AMS Science Preview: Hurricane slowdown, school snow days

Deforestation in the Amazon raises the surface temperature by 3 °C during the dry season

Model more accurately maps the impact of frost on corn crops

How did humans develop sharp vision? Lab-grown retinas show likely answer

Sour grapes? Taste, experience of sour foods depends on individual consumer

At AAAS, professor Krystal Tsosie argues the future of science must be Indigenous-led

From the lab to the living room: Decoding Parkinson’s patients movements in the real world

Research advances in porous materials, as highlighted in the 2025 Nobel Prize in Chemistry

Sally C. Morton, executive vice president of ASU Knowledge Enterprise, presents a bold and practical framework for moving research from discovery to real-world impact

Biochemical parameters in patients with diabetic nephropathy versus individuals with diabetes alone, non-diabetic nephropathy, and healthy controls

Muscular strength and mortality in women ages 63 to 99

[Press-News.org] Unknown midge mystery solved