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@occlupanid.bsky.social
634 followers 13 following 146 posts

Holotypic Occlupanid Research Group www.horg.com

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HORG @occlupanid.bsky.social · 07/10/2026
www.horg.com/horg/?page_i...
horg.com
Ectinolabis planetapolis
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HORG @occlupanid.bsky.social · 07/10/2026
Recently described Archignathid species from the Netherlands. From demolition sites to communal kitchens, Ectinolabis planetapolis has a preference for public spaces that are in constant flux. Its long slender oral hooks may also perform a sensory function, helping it seek out new environs.
Species card for occlupanid, Ectinolabis planetapolis, "City-wandering stretched-forceps", of the Archignathidae.
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HORG @occlupanid.bsky.social · 30/09/2026
Palpatophora utiliformis grandis! They are cosmopolitan in distribution and hosts www.horg.com/horg/?page_i...
horg.com
Palpatophora utiliformis grandis
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HORG @occlupanid.bsky.social · 30/09/2026
Harvested from a kitchen drawer, this colorful clattering of occlupanids was collected by a field researcher in Stockbridge, MI.
Photo of assembled occlupanids. Species represented are Palpatophora utiliformis, P. glyphodorsalis, P. magnastoma, Alisarcina brysi (Toxodentidae), Unidentia obtusamaxilla azureus (Haplognathidae), Quadratopalpus ilex (Archignathidae), and Admordorsum groningensis (Tridentidae).
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HORG @occlupanid.bsky.social · 23/09/2026
A pair of small occlupanids who inhabit the rarified ecological habitat of gashapons and similar toy microclimates. Diagonalobus sasa has an especially unique palpular arrangement, with the lesser distal and proximal palps entirely absent. Specimens submitted by FORC occlupanologist D. Mendoza.
Species card depicting Japanese archignathid occlupanid Diplacofelis kogata, "Miniature folding cat". Kogata is the Japanese word for "small" or "compact".Species card depicting Japanese archignathid occlupanid
Diagonalobus sasa, "Sasa's diagonal lobes"Host entity of D. kogataHost entity of D. sasa
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HORG @occlupanid.bsky.social · 04/09/2026
Excellent question! Markings can vary greatly within populations of the same morphology. HORG differentiates taxa primarily by size and shape of an occlupanid’s oral groove.
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HORG @occlupanid.bsky.social · 01/09/2026
These are exemplary occlupanological models!
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HORG @occlupanid.bsky.social · 21/08/2026
Highlights from a small clattering of diverse occlupanids, collected during a HORG survey at a materials re-use establishment in Portland, OR. It is always a pleasure to encounter older species in the field such as Porrectofrontus rubikarloffia, even in such rarified environments.
Occlupanids collected during survey of a materials re-use establishment in Portland, OR. Species from top to bottom include: Porrectofrontus rubikarloffia, Palptatophora utiliformis, Alatilatus hebechela, Spongipaginus hiatus,  Unidentia wrightae, Alisarcina brysi, Palpatophora glyphodorsalis, Elasticaprehendus rugosa, Asconomeus bubulajuvator, Aspericardis lehmeri, Unidentia obtusamaxilla, Unidentia obtusamaxilla azureus, Quadratopalpus ilex, Porrectofrontus microstoma.
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HORG @occlupanid.bsky.social · 16/08/2026
experiments confirm your hypothesis www.horg.com/horg/wp-cont...
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HORG @occlupanid.bsky.social · 15/08/2026
www.horg.com/horg/?page_i...
horg.com
Hylotypus pseudophormus
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HORG @occlupanid.bsky.social · 15/08/2026
Hylotypus pseudophormus, a newly described occlupanopsid. It is a mimic of one of the most numerous occlupanids on the planet, P. glyphodorsalis. Notable for the subtle woven pattern adorning one of its sides. Specimen discovered by researchers at the Tennessee Occlupanid Research Division (TORD).
Species card depicting a chartoniphytous occlupanopsid found in the Nearctic continental region, mimic of P. glyphodorsalis.
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HORG @occlupanid.bsky.social · 16/07/2026
The Holotypic Occlupanid Research Group site is down for repair for the next couple of days. We apologize to any occlupanologists trying to verify or look up species during this time!
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HORG @occlupanid.bsky.social · 25/06/2026
Excellent find! That’s the smallest Haplognathid known to science, Athyrmidion imagiglacialis! www.horg.com/horg/?page_id=3262
horg.com
Athyrmidion imagiglacialis
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HORG @occlupanid.bsky.social · 19/06/2026
these are brilliant for scientific sorting!
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HORG @occlupanid.bsky.social · 03/06/2026
Happy to help! Worth noting that some of those symbols on our site are unique to occlupanology. We have scans of the originals from our archives. If you’d like send us a dm!
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HORG @occlupanid.bsky.social · 31/05/2026
Presenting the newly described Arcualatus rubidicax, A rather infamous occlupanid endemic to the UK, with a curious history. Making its debut nearly six years ago as a well-documented internet meme, this Tridentid has at last been added to the HORG database. www.horg.com/horg/?page_i...
Species ID card for Tridentid occlupanid Arcualatus rubidicax, "Bow sided, red and sarcastic". This Tridentid has bowed lateral sides, with miniscule palps. Red and white color morphs have been recorded.
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HORG @occlupanid.bsky.social · 29/05/2026
Looks to us to be A. brysi. Nice!
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HORG @occlupanid.bsky.social · 29/05/2026
yes, two specimens have been donated to HORG. With those oral hooks of titanium, what dire creature must its host entity be? We shudder to imagine
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HORG @occlupanid.bsky.social · 14/05/2026
Indeed these seem like a clear case of convergent evolution. Though if anything their closest analogue in the occlupanida might be the mysterious Fusoridae.. www.horg.com/horg/?page_i...
horg.com
Fusoridae
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HORG @occlupanid.bsky.social · 13/05/2026
For those with scientific interest in our "Diversity of Occlupanids" wall hanging, here is a numeric overlay along with a link to our species listing, so you can test your mettle on occlupanid identification! www.horg.com/horg/wp-cont...
Cropped image of "Diversity of Occlupanids" wall hanging, on display at the Holotypic Occlupanid Research Group, showcasing 139 occlupanids (and 4 occlupanopsids) on a wooden printer's tray.Numeric overlay for species listing of "Diversity of Occlupanids" wall hanging. Numbers correspond to species list.
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HORG @occlupanid.bsky.social · 06/05/2026
Their forms are as varied as the stories of their discovery. While many of these species are incredibly common, some are the only duplicate samples in our care (our holotype samples are stored elsewhere!). Even this incredible array is only a sampling of the wealth of occlupanids known to science.
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HORG @occlupanid.bsky.social · 06/05/2026
Our Cultural Occlupanology team proudly unveils a colorful addition to the studious halls of HORG. Behold our new wall display, "A Diversity of Occlupanids"! These specimens have been assembled from occlupanids collected throughout HORG's history, as well as many donated from contributing scholars.
"A Diversity of Occlupanids 01" a wall-mounted antique wooden printer's tray with 143 individual occlupanids and other microsyntherans displayed, as a celebration of the amazing forms, colors, and textures of the Occlupanida."A Diversity of Occlupanids 01" a wall-mounted antique wooden printer's tray with 143 individual occlupanids and other microsyntherans displayed, as a celebration of the amazing forms, colors, and textures of the Occlupanida.
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HORG @occlupanid.bsky.social · 16/04/2026
The chartoniphytous Hong Kong occlupanopsid Chartocutis shiwakurisu also mimics I. kurisu, and has fooled even seasoned occlupanologists. C. shiwakurisu has a notable predilection for roaming pedestrian crossings near fruit markets, once it has detached from its host and its (usually large) amicula.
Species card of Archignathacean occlupanopsid Chartocutis shiwakurisu, "Wrinkled Kurisu's paper skin", found on bags of grapes in Hong Kong.
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HORG @occlupanid.bsky.social · 16/04/2026
These next species have arrived courtesy of the Heung-Shing Expeditionary Lab for Occlupanology (HELO), and both have a connection to Infirmimaxilla kurisu. The first is the latest in a string of ever-increasingly-clever mimics in the genus Kurisuphenax, found on paper bags of grapes in Hong Kong.
Species card of Archignathid occlupanid Kurisuphenax ultimus, "Ultimate Kurisu-deceiver", found on bags of grapes in Hong Kong.
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HORG @occlupanid.bsky.social · 13/04/2026
The HORG mailroom was recently gifted a collection of mail art 'Artistamps' crafted by Nonlocal Variable. The stamps depict diverse HORG holotypes collaged with artists in one set, and another cleverly re-arranged with invertebrate nomenclature from Ernst Haeckel's Kunstformen der Natur.
"Holotypic World" Artistamp collection, Mail art from Nonlocal Variable. The "Holotypic Occlupanid Forms in Nature", combines occlupanids with names of biological organisms taken from Ernst Haeckel,  While "Post-Holotypic Mail Art In Outer Space" crosses various occlupanids with avant-garde artists.A series of custom artistamps of diverse occlupanid outlines collaged with avant-garde artists, many from the Fluxus movement.
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HORG @occlupanid.bsky.social · 11/04/2026
This is an absolutely phenomenal body of work on the Vestimentia!
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HORG @occlupanid.bsky.social · 09/04/2026
Discovered in a shipment of laboratory gloves by field researcher C. Cody. Often such gloves would be shipped in a cardboard tube, but one shipment arrived swaddled in a large plastic bag with C. necopinus attached. It is surmised that this occlupanid escaped predation during its postal migration.
Species card of Archignathid occlupanid Chirophragma necopinus, "Unexpected hand-barrier".
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HORG @occlupanid.bsky.social · 25/03/2026
They were then quarantined and brought back through customs under tight controls. They have since been relegated to a secure area at our facility, lest they escape to the HORG break room and masquerade as drink coasters.
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HORG @occlupanid.bsky.social · 25/03/2026
While it is the opinion of reputable synthetic taxonomists that specimens of this scale are probably too large to be considered microsyntherans, the exquisite gilded markings were too elaborate for the visiting scholars to resist, and so several specimens were collected on site.
Three giant occlupanopsid-like entitiess, the size of drink coasters, part of a museum gift-wrapping service at the 21st Century Museum of Contemporary Art in Kanazawa, Japan. Local specimen of Diplacofelis wangi shown for scale.
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HORG @occlupanid.bsky.social · 25/03/2026
Part of the museum "gift-wrapping" service, these colossal chartoniphytes employ human agents, who attach these boldly-embossed entities to bolts of fine cloth, entrapping any purchased items in a silken sarcophagus.
Counter display at the 21st Century Museum of Contemporary Art in Kanazawa, Japan, showing gift-wrapping service. "Plastic bag is not included in the price."
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HORG @occlupanid.bsky.social · 25/03/2026
At the 21st Century Museum of Contemporary Art in Kanazawa, Japan, visiting occlupanologists on holiday last October were alarmed to find what appeared to be immense occlupanopsids in the museum store!
Single giant occlupanopsid-like entitiess, showing exquisite gilded markings. This species, unidentified, is not considered to be an occlupanopsid, and thankfully will not have to open yet another branch of study at our already cramped HORG headquarters, where enough valuable science substrate is being taken up by non-syntheric entities as it is.
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HORG @occlupanid.bsky.social · 19/03/2026
One of the many institutions celebrating Taxonomist Appreciation Day is the World Register of Marine Species (WoRMS), which lists some amazing creatures described this past year, including the Darth Vader Supergiant Isopod Bathynomus vaderi. www.marinespecies.org/worms-top-te...
marinespecies.org
WoRMS - Press release top ten remarkable species of 2025
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HORG @occlupanid.bsky.social · 19/03/2026
Happy Taxonomist Appreciation Day! On this day the synthetic taxonomist community, and HORG in particular, celebrates the rigorous and passionate work that underpins our knowledge of the natural world. Scholars of Microsynthera everywhere owe a deep debt of gratitude to their work.
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Reposted by HORG
Terry McGlynn @hormiga.bsky.social · 19/03/2026
Happy Taxonomist Appreciation Day, y'all. There's undescribed biodiversity all around us! Not long ago, Brian Brown and Emily Hartop put up some malaise traps smack in the middle of Los Angeles, and right away they described 30 new species of phorid flies. mapress.com/zt/article/v...
mapress.com
Opportunity in our Ignorance: Urban Biodiversity Study Reveals 30 New Species and One New Nearctic Record for Megaselia (Diptera: Phoridae) in Los Angeles (California, USA) | Zootaxa
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HORG @occlupanid.bsky.social · 17/03/2026
Though some scholars have proposed to place this unusual micropanid in its own family, the morphological similarities to Corrugatidae are striking, though the oral hooks have atrophied almost entirely. It has been observed on "Kirby"-themed miniature food sets.
Species card of Corrugatid occlupanid Asterirosea dreamlandii, “Dreamland’s pink star”, found only on miniature bags of pretend bread products.   
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HORG @occlupanid.bsky.social · 17/03/2026
This miniscule microsyntheran is one of the smallest toxodentids yet recorded. Its dential processes are nearly vestigial, but still recognizable as a toxodentid oral groove. As in other “micropanids”, the oral hooks are atrophied, possibly due to lack of serious competition in its singular niche.
Species card of Toxodentid occlupanid Cermartus jujuae,“Juju’s tiny bit of bread”, found only on miniature bags of pretend bread products.   
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HORG @occlupanid.bsky.social · 17/03/2026
A trio of "micropanids" collected by field researchers from miniature bags of pretend bread products from Japan. Despite their strange appearance, multiple sightings have confirmed their status as distinct and identifiable species.
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HORG @occlupanid.bsky.social · 11/03/2026
Colour morphs can be confounding! Meanwhile, revel in the mathematically true statistic that you have spotted 100% more occlupanids in Germany than the entire staff of HORG.
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HORG @occlupanid.bsky.social · 11/03/2026
Nestled amongst this diverse clattering of occlupanids was an acutignathid only recently described by the students of a high school science class.
Collected occlupanids of family Toxodentidae:
Aspericardis lehmeri (2016)
Porrectofrontus microstoma (2016)
Porrectofrontus mechadeus (2000)
Palpatophora gracilis (1994)
Palpatophora uvularaptor (1995)
Palpatophora deminutus (2019)
if you’ve ever wondered how P. glyphodorsalis got its name, it is because of early specimens like these!Collected occlupanids of family Toxodentidae:
Palpatophora utiliformis grandis (1994)
Palpatophora magnastoma (2019)
Palpatophora glyphodorsalis (2014)Collected Occlupanids of families Corrugatidae and Acutignathidae:
Genevertonicus quimbyi (2012)
Toroidopanis undulatis (1994)
Migrugibba vulpis  (2026) !
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HORG @occlupanid.bsky.social · 11/03/2026
An occlupanological treasure trove donated to HORG, found at a recycling facility. Contained within a small ziploc bag were over 30 species, a high rate of microsyntheric diversity! Many of these species, once commonly encountered in the wild, are today mostly observed in clatterings such as these.
Collected occlupanids of family Haplognathidae:
Dicrania uganda (1998)
Ungella vescus (2016)
Unidentia quadratus (1996)
Unidentia identicalis (1996)
Indescribus conundrum (1999)
Unidentia obtusamaxilla (2003)
Unidentia obtusamaxilla azureus (2017)
Unidentia obtusamaxilla brevis (2013)
Unidentia oblongaris (2019)
Collected occlupanids of family Tridentidae:
Captospinula simplistica (1996)
Captospinula celsus (2021)
Carisma matsumotoi (1998)Collected occlupanids of family Archignathidae:
Cardioris cirrhosoma (1998
Cardioris amplifolium (1999)
Cyrtotergum albus (1997)
Protocrena obtusilateri (1996)
Protocrena variotaedium (1996)
Protocrena escharops (2020)Collected occlupanids of family Toxodentidae:
Palpatophora utiliformis (1994)
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HORG @occlupanid.bsky.social · 10/03/2026
Excellent observation! It looks to be a very healthy specimen of Palpatophora utiliformis! On our staff retreat to Munich in 2024 we observed exactly 0.00 occlupanids during the course of our urban survey.
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HORG @occlupanid.bsky.social · 07/03/2026
www.horg.com/horg/?page_i...
horg.com
Migrugibba vulpis | HORG
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HORG @occlupanid.bsky.social · 07/03/2026
It is possible that M. vulpis does not attach itself to a host for a great portion of its life cycle, but instead sustains itself via the proximity of other occlupanids.. It is hoped that the young occlupanologists of tomorrow will help discover more about them!
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HORG @occlupanid.bsky.social · 07/03/2026
The students placed their discovery in the established genus Migrugibba ("little bumps"), and gave it the species name of vulpis ("fox"), in honor of their school mascot. A second specimen was subsequently found in Oakland, California, in a similar diverse clattering of hoarded occlupanids.
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HORG @occlupanid.bsky.social · 07/03/2026
The mysterious occlupanid was determined to be an Acutignathid, a family of occlupanids whose most identifiable feature (aside from their centrally-located pointed dential process) is that they almost never identified in the first place, due to the fact that they are almost never encountered.
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HORG @occlupanid.bsky.social · 07/03/2026
While sorting through a pile of occlupanids in biology class as an introduction to taxonomy, students at Sidwell Friends School in Washington, DC noticed some small green occlupanids that did not fit into any of the dichotomous keys they were creating, and perhaps found an unidentified species...
Species card of a bright green Acutignathid occlupanid, Migrugibba vulpis "Little bumps of the fox". Discovered by Students at Sidwell Friends School in Washington, DC. It has been since found in two locations, on opposite ends of the continent, both times inside large diverse hoards of other occlupanids.
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HORG @occlupanid.bsky.social · 24/01/2026
Those are beautiful specimens of Paniraptor vafra, an occlupanopsid, which is a paper-formed occlupanid mimic! www.horg.com/horg/?page_i...
horg.com
Paniraptor vafra
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HORG @occlupanid.bsky.social · 16/01/2026
Though scientists have yet to find any species endemic to the continent, this heroic research is of great value to occlupanology.
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HORG @occlupanid.bsky.social · 16/01/2026
Occlupanids from the South Pole. A diverse clattering of 34 specimens were delivered to HORG by field researchers Z. Mills and A. Barden, while stationed at the Amundsen-Scott South Pole Station. It is theorized that these specimens had likely migrated from North America or New Zealand.
Display of several occlupanids from Antarctica, collected  at the Amundsen-Scott South Pole Station, during the austral winter of 2025. Species collected: Palpatophora utiliformis, P. utiliformis grandis, P. glyphodorsalis, Protocrena gigantis, Porrectofrontus colwelli, and Admordorsum floridensis. All in suitably polar hues, except for that viridis one.
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HORG @occlupanid.bsky.social · 11/01/2026
They have definitely increased their range, and are now found on several continents. Shipping is certainly a factor, but it is thought some have made it to other remote locations by riding oceanic gyres...
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