The misty forests of the Giant Panda National Park in western Sichuan have long been a focus for biodiversity conservation. While the park is synonymous with its namesake bear, recent research has highlighted a different kind of resident. A team of scientists from the Chengdu Institute of Biology and other regional institutions recently identified a new species of pitviper that had been overlooked for decades. The results are published in the open-access journal Zoosystematics and Evolution.
Trimeresuruslii in life. (Image credit: Bo Cai).
Named Trimeresurus lii, or the Huaxi Green Pitviper, the snake was previously confused with the more common bamboo pitviper. Through a combination of genetic sequencing and detailed physical analysis, researchers determined that these populations represent a distinct lineage. The species name honours Li Er, the philosopher known as Laozi, whose teachings emphasise the balance between humanity and the natural world.
Fresh specimen of the holotype of Trimeresurus lii. (Image credit: Bo Cai).
Visually, the Huaxi Green Pitviper is defined by its vibrant grass-green body and distinct eye colors that range from amber to orange-yellow. There are clear physical differences between the sexes. Males feature a tricolor stripe of red and white along their sides, while females possess a simpler yellow stripe. One of the technical features that helped researchers distinguish this snake from its relatives is its smooth head scales, a trait not found in similar species within the region.
Habitat of Trimeresurus lii. (Image credit: Bo Cai).
The discovery took place in the West China Rain Zone, specifically around Mt. Emei and Xiling Snow Mountain. This area is a known biodiversity hotspot, yet many of its smaller or less charismatic species remain understudied. The identification of Trimeresurus lii as the 58th species in its genus serves as a reminder that even well-documented regions still hold biological secrets.
Map showing the type localities of Trimeresurus species and the localities of Trimeresurus lii. (Image credit: Cai et al.).
This find underscores the broader value of the Giant Panda National Park. By protecting large swaths of habitat for flagship species, the park inadvertently preserves a complex ecosystem of specialised reptiles and amphibians. Documenting these animals is a necessary step toward understanding the full scope of life within China’s protected wilderness.
The Pikelinia floydmuraria, a new addition to the South American Pikelinia population, was observed in Colombia’s department of Tolima and is now described in the journal Zoosystematics and Evolution.
A team of researchers from institutions across South America have expanded scholarly knowledge of the Pikelinia spider genus, with their recent discovery of a new crevice weaver species: Pikelinia floydmuraria.
The new species name is a creative tribute to the legendary rock band Pink Floyd, while simultaneously referencing the spider’s specific habitat. “Muraria,” derived from the Latin word for “wall”, reflects the species’ tendency to reside in the walls of buildings, though indeed also alludes to the iconic Pink Floyd album, The Wall.
A photo of the wall were these spiders live in Armenia, Quindío. Photo credit to Leonardo Delgado-Santa.
Pikelinia floydmuraria, male paratype. Credit to Leonardo Delgado-Santa.
These findings are described in greater detail in the open-access journal Zoosystematics and Evolution (ZSE) and serve as a particularly important contribution to the wider study of synanthropic spiders – species that have adapted to human-created environments. Despite the ecological importance of these spiders in Colombia, research into their biology and nutritional ecology has received little attention. The discovery of the Pikeliniafloydmuraria, alongside observations of additional populations in neighbouring Colombian departments, holds the potential to remedy this problem.
The species establishment
The first regional review of the genus Pikelinia was established in 1946 by the Brazilian zoologist Mello-Leitão. For decades, the genus remained obscure, with species often misidentified or “lumped” into the type genus Filistata, most commonly found in the Mediterranean region.
In 2022, however, a major study redefined Pikelinia as part of a distinct South American spider group. Pikelinia floydmuraria is the most recent addition to the genus and provides considerable insight into the dietary composition of these crevice weavers.
Skilled hunters
Pikelinia floydmuraria from Tolima, Female Juvenile, attacking a cockroach on the web. Credit: Julio C. González-Gómez.
Pikelinia floydmuraria from Tolima, Female Juvenile, attacking a cockroach on the web. Credit: Julio C. González-Gómez.
These spiders are skilled hunters, primarily feeding on insects including flies, beetles and ants. Remarkably, they are capable of taking down prey up to six times their own size and often build their webs near streetlights to catch insects attracted to the glow. The above figure provides a visual representation of the spider’s predatory behaviour in urban habitats, demonstrating its ability to prey on insects larger than itself.By keeping these insect populations under control, crevice weavers thus maintain a healthier balance in the Colombian urban environment.
The research team behind this discovery, led by Osvaldo Villarreal and Leonardo Delgado-Santa, note that Pikelinia floydmuraria only measure about 3 to 4 millimetres in length. One of their most unique internal features is found in the females, which contain reproductive organs comprising long and slender tubes that are shaped like the letter “S”. In urban environments, they can be found tucked in the cracks and crevices of building walls, with observed concentrations reaching between 20 and 30 spiders in a single square metre.
Pikelinia fasciata, female from Galapagos A. Habitus (dorsal view). Credit: Andrea C. Roman.
The researchers further observed that Pikelinia floydmuraria is a very close relative of another species called Pikelinia fasciata, which lives in the Galapagos Islands. Despite being separated by the Pacific Ocean and Andes mountain range, the two look almost exactly alike, leaving scientists to wonder: how did such similar spiders end up so far apart? It remains a mystery as to whether these traits reflect shared ancestry or similar ecological adaptations.
Nonetheless, the two can be differentiated by the appearance of their legs, with the Colombian spider displaying solid-colours, and the Galapagos featuring darker rings by contrast. The Galapagos female spiders additionally have shorter and straighter reproductive organs in comparison to the Colombian female.
🎸🕸️ Meet the latest rock star of the #spider world: Pikelinia floydmuraria. 🕷️Recently discovered in Colombia, this species was officially named after @Pink Floyd as a tribute to both their iconic album “The Wall” and the spider’s favourite hangout: urban city walls. ➡️ Follow the link to read more about this discovery: https://zse.pensoft.net/article/175423/ ➡️Or see the blog post here: https://blog.pensoft.net/2026/04/14/meet-the-crevice-weaver-a-newly-discovered-urban-spider-from-colombia/ #arachnid#spiders#newspecies#science
In order to better determine whether Pikelinia floydmuraria is a unique species native to Colombia, the South American researchers suggest the implementation of DNA barcoding in future studies. This will provide genetic evidence that could help map the evolutionary history of Pikelinia floydmuraria. A DNA-based dietary analysis, meanwhile, would quantify the extent to which these spiders operate as natural urban pest regulators.
Whether they are just “another web in the wall” or a relative from the Galapagos, the discovery of Pikelinia floydmuraria represents a significant advancement in our understanding of South American spider taxonomy. By identifying this new Colombian species and providing the first-ever detailed anatomical description for its relative, Pikelinia fasciata, researchers have expanded scientific knowledge of the Pikelinia genus.
Pikelinia floydmuraria may be small and “comfortably numb” to the bustle of the city, but their impact on maintaining a healthy urban ecosystem is anything but quiet.
Original source
Villarreal O, Delgado-Santa L, González-Gómez JC, Rodríguez-Castro GA, Román AC, Agudelo E, García LF (2026) Another web in the wall: A new Pikelinia Mello-Leitão, 1946 (Araneae, Filistatidae) from Colombia, with notes on its diet and description of the female genitalia of P. fasciata (Banks, 1902). Zoosystematics and Evolution 102(1): 357-366. https://doi.org/10.3897/zse.102.175423
Berlin (Germany) and Sofia (Bulgaria), 10th February, 2026 – ResearchGate, the professional network for researchers, and Pensoft Publishers, an independent open access publisher and provider of high-quality scholarly publishing services, today announced an expansion of their Journal Home partnership. Building on an earlier collaboration announced in 2023, the list now expands to 40 journals, covering the majority of Pensoft’s and partners’ journals using the publisher’s ARPHA Publishing Platform.
With most of Pensoft’s eligible partner journals choosing to participate, the expansion reflects strong demand for greater exposure and engagement opportunities, particularly among smaller and developing journals in niche research areas. Through Journal Home, partner publishers can reach more relevant audiences, improve discoverability, and connect more effectively with researchers worldwide.
Participating Pensoft journals will also benefit from:
Increased usage and readership, with full-text open access journal content seamlessly surfaced to highly relevant researcher communities across the ResearchGate platform.
Stronger engagement from new and returning authors, connecting partner journals, including specialist and emerging titles, with targeted researchers and potential authors throughout the research lifecycle.
Dedicated Journal Profiles and prominent placement of Pensoft journals to enhance visibility and branding, boosting recognition of partner journals with researcher communities around the world.
Improved author experience, with the automatic addition of published articles to author profiles, clearer insight into reader engagement, and greater opportunities for meaningful collaboration.
“Journal Home allows us to provide our partner journals with improved visibility and stronger connections with global researcher communities. Many of these journals serve highly specialised fields, and Journal Home helps make sure their articles reach the right researchers, who will benefit from them most.”
Lyubomir Penev, CEO and founder of Pensoft Publishers
“We’re pleased to expand our Journal Home partnership with Pensoft to support an increasing number of partner journals. By bringing these journals onto the platform, smaller and emerging titles can expand their reach, attract high-quality submissions, and connect with the most relevant researcher communities at key moments in their research journey.”
Robyn Mugridge, Head of Partnership Development at ResearchGate
For more information about Pensoft Publishers, please visit www.pensoft.net.
About ResearchGate
ResearchGate is the professional network for researchers. Over 25 million researchers use researchgate.net to share and discover research, build their networks, and advance their careers. Based in Berlin, ResearchGate was founded in 2008. Its mission is to connect the world of science and make research open to all.
About Pensoft Publishers
Pensoft is an independent, open-access scholarly publisher and technology provider, best known for its 40+ biodiversity journals, including ZooKeys, Biodiversity Data Journal, PhytoKeys, MycoKeys, One Ecosystem, and Metabarcoding and Metagenomics. Ever since becoming the first to introduce semantic enrichments and hyperlinks within a scientific article in the field of biodiversity in 2010, Pensoft has been working on various tools and workflows designed to facilitate data findability, accessibility, discoverability and interoperability.
The agreement encompasses five key research and medical bodies, and allows corresponding authors to publish their findings without individual Article Processing Charges.
Pensoft and the University of Zurichhave signed a comprehensive Open Access (OA) agreement, starting a partnership that enables researchers at participating institutions to publish their findings in Pensoft’s peer-reviewed journals without incurring individual Article Processing Charges (APCs).
Under this new framework, publishing costs for corresponding authors affiliated with the respective institutions are 100% covered by a centralised institutional deposit secured by the University of Zurich. By removing financial barriers, the agreement encourages scientists to disseminate their work to both the academic community and the wider public, making research immediately and freely available upon publication.
This initiative ensures that research is shared under open licences in strict accordance with the FAIR principles—making data Findable, Accessible, Interoperable, and Reusable.
“We are excited to start this partnership with the University of Zurich and sign an agreement that reflects our strong commitment to inclusive and equitable open science. By supporting researcher-driven publishing, we continue to foster a sustainable environment for high-impact scientific communication.”
Prof. Lyubomir Penev, CEO of Pensoft
“We are pleased to extend our portfolio of gold open access journals, in which our researchers can publish their findings without paying individual APCs. We thereby strengthen our commitment to open research information.”
University Library Zurich
Are you affiliated with a research institution operating with OA agreements? Is your institution interested in helping resident researchers navigate the complex processes underpinning academic publishing and knowledge sharing? Reach out to <[email protected]> to discuss a potential collaboration.
The agreement covers almost 100 institutions, including Karolinska Institutet, Lund University, Uppsala University, and the Royal Swedish Academy of Sciences.
Pensoft and the Bibsam Consortium, operated by the National Library of Sweden, are pleased to announce the signing of a comprehensive Open Access (OA) agreement, marking a significant step in the transition towards a more transparent and open scholarly publishing landscape in Sweden.
Thanks to this move, researchers at participating institutions will be able to publish their findings in 65 journals published by Pensoft or using its advanced publishing platform ARPHA, including flagship titles such as ZooKeys, PhytoKeys, Biodiversity Data Journal, NeoBiota and IMA Fungus, without incurring individual article processing charges (APCs).
All authors affiliated with participating institutions can benefit from this agreement, with publishing costs 100% covered by an institutional deposit secured by the National Library of Sweden.
Unlike subscription-based systems, an OA framework ensures that scientific findings are immediately and freely available to the global community, supporting the global shift toward accessible science and adhering to the FAIR principles (Findable, Accessible, Interoperable, and Reusable).
OA agreements like this one reduce the financial burden on scientists and encourage them to share their work with both academia and the wider public, ultimately lowering barriers to sharing knowledge in a time when scientific input is key to resolving global challenges.
“We are excited to start this partnership with Bisbam and sign an agreement that reflects our strong commitment to open science. By supporting researcher-driven publishing, we continue to foster a sustainable environment for high-impact scientific communication.”
Prof. Lyubomir Penev, CEO of Pensoft
“We are delighted to announce the addition of Pensoft Publishers to our portfolio of nationally funded agreements for 2026. This represents an important step towards achieving full open access to scientific publications in Sweden.”
Niklas Willén, License Manager at Bibsam Consortium and National Library of Sweden
Are you affiliated with a research institution operating with OA agreements? Is your institution interested in helping resident researchers navigate the complex processes underpinning academic publishing and knowledge sharing? Reach out to <[email protected]> to discuss a potential collaboration.
So, when researchers from the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) discovered a new limpet species deep below the northwestern Pacific Ocean, it should come as no surprise that they looked to a nautical manga series for inspiration.
Photograph of the new species with a clear feeding trail behind. Credit: Chen et al.
Published as a new species in the open-access journal Zoosystematics and Evolution (follow the journal on Bluesky here), the deep-sea limpet was found on hard volcanic rock 500 kilometres southeast of Tokyo at a depth of almost 6 km, the deepest known habitat for any true limpet (subclass Patellogastropoda).
The gastropod measures up to 40.5 mm in shell length, which is a remarkably large size for a true limpet from such depths and another source of inspiration for the species’ name.
So, what is that name?
The research team named the new species Bathylepeta wadatsumi, which is both a reference to Wadatsumi, the god of the sea in Japanese mythology, and the character “Large Monk” Wadatsumi, from the manga series ONE PIECE.
“Large Monk” Wadatsumi. Credit: One Piece Wiki.
In ONE PIECE,”Large Monk” Wadatsumi is a giant fish-man and a member of the Sun Pirates. To avoid spoilers, that’s all we will say about the character, but as far as the reference goes: Wadatsumi is big, the limpet is big, and the authors love ONE PIECE.
So much so, that they paid further homage to the world’s most popular manga series in the acknowledgements section of their paper, writing:
“We also take this opportunity to salute Eiichiro Oda for continuing to chart the epic voyage of ONE PIECE (1997–), which reminds us that the greatest voyages are driven by freedom, camaraderie, and an insatiable thirst for discovery.”
Their own discovery was made possible by access to sophisticated submersible technology.
The new species was collected using the crewed submersible DSV Shinkai 6500, making it the first time a member of the genus Bathylepeta has been observed and photographed live on its natural rocky substrate, rather than being dredged using a net. The use of submersibles is instrumental in accessing these habitats, allowing for direct observation and collection of previously overlooked organisms.
JAMSTEC’s DSV Shinkai 6500 submersible.
“Even in an age of sophisticated remotely operated vehicles, there’s often an edge to the human eye on the seafloor. Crewed submersibles like Shinkai 6500 let us explore with intention and nuance—spotting lifeforms like Bathylepeta wadatsumi that might otherwise be missed entirely.”
Dr Chong Chen, lead author.
Beyond its taxonomic significance, the study has broader ecological implications as B. wadatsumi appears to graze on sediment layers over rock, indicating a specialised role in processing organic matter in deep-sea ecosystems.
The findings underscore the need for more comprehensive explorations of rocky abyssal habitats using submersibles to reveal the true diversity and distribution of Bathylepeta and other animals relying on such habitats.
While it remains to be seen whether Luffy and co. will ever find the “One Piece,” we can be sure that their adventures will continue to inspire researchers in their own journies of discovery.
One year ago, Pensoft embarked on an exciting new journey to connect with the vibrant scientific community in China by launching our official Weibo account. This initiative was designed to foster closer ties with Chinese researchers, academics, and science enthusiasts—helping to broaden the reach of scientific knowledge and promote international collaboration.
Highlights from Our First Year
Over the past 12 months, we’ve shared a wide range of articles, research highlights, and updates from our diverse portfolio of open-access journals. Here are some of the most memorable moments from our first year:
Our most viewed video featured the discovery of three new species ofNautilus—the iconic deep-sea mollusks. Published in ZooKeys, the study described species from the Coral Sea and South Pacific. The video captivated marine biology fans and drew thousands of views. Videos are a powerful way to share science, and we encourage researchers to include video materials whenever possible!
Our most viral post introduced the newly described supergiant Bathynomus vaderi—a massive deep-sea isopod discovered off the coast of Vietnam. Its name, vaderi, was inspired by the creature’s head, which bears a striking resemblance to the iconic helmet worn by Darth Vader in Star Wars.
Another popular post highlighted new mimetid spider species (Araneae, Mimetidae) discovered in Guizhou Province, published in Zoosystematics and Evolution. The study shed light on the region’s rich spider biodiversity and sparked strong engagement from our Chinese followers. It seems that spiders are a consistent fan favorite, with arachnid discoveries regularly going viral on our Weibo!
Male holotype of Mimetuslanmeiae sp. nov., photograph by Q Lu (Shenzhen)
This trend continued with our most popular longread, which told the story of Otacilia khezu sp. nov., a newly discovered cave-dwelling spider from Guangxi, China, published in the Biodiversity Data Journal. What truly captured readers’ imaginations—beyond the biological discovery—was the name itself. The spider was named after the Khezu, a wyvern from the popular video game Monster Hunter, known for its blindness and eerie appearance. Just like its namesake, Otacilia khezu completely lacks eyes — a striking adaptation to life in the dark.
As we celebrate this milestone, we’re filled with excitement for what lies ahead. We look forward to continuing to share cutting-edge science, uncovering new discoveries, and building stronger connections with our Chinese readers and partners.
Thank you to everyone who has followed, shared, and supported us over the past year. Your engagement has made this journey meaningful and rewarding.
Content from more than 30 biodiversity journals published on the ARPHA Platform will now be archived in the Biodiversity Heritage Library (BHL), the world’s largest open-access digital library for biodiversity literature and archives.
A global consortium of natural history, botanical, research, and national libraries, BHL digitises and freely shares essential biodiversity materials. A critical resource for researchers, it provides vital access to material that might otherwise be difficult to obtain.
Under the agreement, over 16,000 articles published on Pensoft’s self-developed ARPHA Platform are now available on BHL. Both legacy content and new articles are made available on the platform, complete with full-text PDFs and all relevant metadata.
Thanks to this integration, content in our journals will become even more accessible and readily discoverable, helping researchers find the biodiversity information they need.
Prof. Lyubomir Penev
More content published on ARPHA will gradually be added to the BHL archive.
The publications will be included in the Library’s full-text search, allowing researchers to easily locate relevant biodiversity literature. Crucially, the scientific names within the articles will be indexed using the Global Names Architecture, enabling seamless discovery of information about specific taxa across the BHL collection.
“Pensoft is pleased to collaborate with BHL in our joint mission to support global biodiversity research through free access to knowledge. Thanks to this integration, content in our journals will become even more accessible and readily discoverable, helping researchers find the biodiversity information they need,” said Prof. Lyubomir Penev, CEO and founder of Pensoft and ARPHA.
The news comes soon after BHL announced it is about to face a major shift in its operation. From 2026, the Smithsonian Institution – one of BHL’s 10 founding members – will cease to host the administrative and technical components of BHL. As the consortium explores a range of options, the BHL team is confident that “the transition opens the door to a reimagined and more sustainable future for BHL.”
Introducing Haploniscus hades, isopod of the underworld.
The deep sea is the largest yet least explored biome in the world, with estimates suggesting that up to 91% of marine species are yet to be discovered.
Indeed, when it comes to finding new species in the deep sea, things are more than a little tricky. Besides the obvious difficulties associated with scouring such vast, inaccessible depths, researchers also face the obstacle of so-called ‘cryptic’ species: groups of closely related taxa that are almost impossible to tell apart from looks alone.
The recently discovered Haploniscusbelyaevi isopod species complex is one such group, collected from the the abysso-hadal Kuril-Kamchatka Trench (KKT) region in the Northwest Pacific Ocean.
Distribution of haploniscid species of the belyaevi-complex in the greater Kuril-Kamchatka Trench and Sea of Okhotsk area of the Northwest Pacific. Stars indicate each species type locality.
Isopods collected from the region were initially believed to represent a single species, but are now known to represent at least six distinct species, five of which are new to science. Published in the journal Zoosystematics and Evolution, a new study combines classical morphology with DNA barcoding, confocal laser scanning microscopy, and the first-ever genomic sequencing of Haploniscidae isopods to distinguish these cryptic species.
In the research paper, lead author Dr Henry Knauber and his colleagues from the Senckenberg Research Institute and Goethe University Frankfurt provide detailed descriptions of each species and reveal the names of the new species, inspired by Greek mythology.
Meet the new isopods
Left to right: H.hades, H.belyaevi, and H.erebus.
Haploniscus hades
Who else could rule the hadal zone but Hades himself? This isopod’s pleotelson (tail segment) hides its uropods (tail appendages), which, to the endlessly creative research team, evoked the cap of invisibility used by Hades.
Haploniscus apaticus
Named after Apate, the goddess of deceit, this ‘deceptive’ isopod hides in plain sight thanks to its unassuming looks, which kept it hidden amongst its sibling species until recently.
Haploniscus erebus
Bearing the name of Erebus, the primordial god of darkness, this species lurks in the shadowy depths.
Haploniscus kerberos
Named after Kerberos (Cerberus), the multi-headed guardian of the underworld’s gates, this species is currently only known from the abyssal plains, watching over the borderlands between deep and deeper.
Haploniscus nyx
Nyx, the goddess of night, lends her name to this elusive species.
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The isopod specimens were collected during deep-sea research expeditions between 2012 and 2016, covering depths of up to 8,000 meters.
While the names of these species represent little more than creative fun, the study’s findings help illuminate evolutionary processes across natural barriers such as the Kuril-Kamchatka Trench and underscore the potential for new discoveries in Earth’s least explored environments.
Who knows, perhaps Haploniscus hades has two brothers, H. zeus and H. Poseidon, hiding above, still waiting to be found.
China’s Guizhou Province has long been known for its remarkable biodiversity, but a recent study in Zoosystematics and Evolutionhas shed light on some of its creepier, lesser-known inhabitants: pirate spiders.
What is a pirate spider?
The name ‘pirate spiders’ refers to species belonging to the family Mimetidae. Also known (misleadingly) as cannibal spiders, they earned their name because of their araneophagic (spider-eating) nature.
Araneophagic behaviours.
Araneophagic behaviours.
Araneophagic behaviours.
These eight-legged predators don’t spin webs to catch prey; instead, they infiltrate the webs of other spiders and mimic the vibrations of prey or potential mates, then ambush the unsuspecting hosts when they come to investigate.
A recent research paper by Zhang et al. offers the most comprehensive survey to date of the pirate spider genus Mimetus in Central Guizhou, including two new species, bringing the provincial total to eight and giving Guizhou the highest Mimetus diversity in China.
Mimetussinicus.
China’s new species
Mimetus guiyang
Mimetusguiyang.
Discovered in Guiyang City, this species is known only from females collected via pitfall traps. Its most distinctive feature is the presence of large bubble-shaped ossified hair bases on the abdomen, a rarity among known Mimetus species. Its genital morphology and body patterns make it easily distinguishable from close relatives.
Mimetus lanmeiae
Mimetuslanmeiae.
Also found in Guiyang, this species was observed perched on a spider web, likely in the act of mimicry. Its unique palpal structures and small body size (~2.14 mm) distinguish it from other known Mimetus species. The name of the species honours the mother of the specimen collector. Hopefully this was meant as a compliment.
Other findings
New records: The researchers recorded two previously known species (M. caudatus and M. sinicus) for the first time in Guizhou, expanding their known range.
Rediscovery and redescription:M. caudatus, previously known only from male specimens, now has its female described in detail.
Molecular insights: DNA barcoding (COI gene sequencing) was used to support species identification and match males and females – a critical step for accurate taxonomy, especially given the subtle differences between males and females in Mimetus.
