Acritus nigricornis is a species of clown beetle in the family Histeridae. It is found in Africa, Australia, Europe, Northern Asia (excluding China), North America, and Southern Asia.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Acritus nigricornis has left across the world's sequence archives.
At a glance
DNA specimens16
BINs3
Marker genes2
eDNA detections38
Countries8
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus10 specimens
ACGT
▸ drag or hover over the strip to read any position — letter and how much it varies
Violet ticks below the strip = positions where individuals differ; flat = the species' unchanging signature. 83% of positions are identical in every specimen.
Where individuals differ — all 109 variable positions, in barcode order
Each circle is a barcode variant; bigger = more specimens, colour = region. Lines join the most similar variants and the tick marks count the mutations between them — a tight cluster is one “dialect”, a long line a more divergent lineage. Click a circle to list its actual specimens.
Diversity (π)4.1%
Haplotypes4
BINs3
Most divergent pair14.4%
Europe
Closest relatives by DNA barcode
The species whose COI barcode is most similar to this one — a quick “who is this most like”. The percentage is how much the barcode differs; it approximates, but is not, the full evolutionary tree.
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-3P★COI-5P
animal barcode
08Occurrence & distribution
Record type1 161 records
Wild obs. + sensor222
Museum / vouchered599
Cultivated / captive5
Fossil314
Other21
Origin
Native42
Range
Area of Occupancy AOO1 436 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy74% within 1 km
≤100 m 33≤1 km 128≤10 km 56>10 km 2
219 georeferenced · 3 without coordinates
Open the mapobservation + sensor222
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy38% within 1 km
≤100 m 74≤1 km 109≤10 km 247>10 km 57
487 georeferenced · 112 without coordinates
Open the institutions mapphysical evidence599
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 5 records without
Open the mapnot free-living5
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions16 of 40 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Zürich, CH
75
Geneva, CH
72
SLU Artdatabankenlocation not on record
53
Helsinki, FI
44
Bonn, DE
36
Muzeum Górnośląskie w Bytomiulocation not on record
26
Olocation not on record
25
Naturéum — Muséum cantonal des sciences naturelles, Lausanne, Département Zoologielocation not on record
21
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
20
NHMOlocation not on record
18
Chicago, US
14
Bern, CH
14
NTNU-VMlocation not on record
9
MZLUlocation not on record
8
Natural History Museum Rotterdamlocation not on record
8
Auckland, NZ
7
Provincia di Livornolocation not on record
7
Uniwersytet Wrocławskilocation not on record
7
Copenhagen, DK
6
LSMlocation not on record
6
Oulu, FI
4
CBDClocation not on record
3
WULS-DFPElocation not on record
3
Santa Barbara Museum of Natural Historylocation not on record
3
NCMGlocation not on record
3
Museo Nacional de Ciencias Naturales (CSIC)location not on record
2
Kuopio, FI
2
Tilburg, NL
2
Naturmuseum Solothurnlocation not on record
2
Frauenfeld, CH
2
ZSMlocation not on record
2
NMOKlocation not on record
2
Paro, BT
2
IFR-DNFlocation not on record
1
BioFokuslocation not on record
1
Cape Town, ZA
1
Bavarian State Collection of Zoologylocation not on record
1
Salzburg, AT
1
Natural History Museum, Londonlocation not on record
1
Jyväskylä, FI
1
40 institutions · 515 of 599 vouchered records shown · 84 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA38 detections
Where the DNA of Acritus nigricornis was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found38
Studies independent surveys2
Countries5
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 38 detections have coordinates
Open the map5 countries0
SchafkotStreuobstwieseverrottendes Gras
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median14.6 °C 13.8–15.7
Seasonal swing summer↔winter15.9 °C
Max temp (day)17.2 °C 15.7–19.9
Min temp (night)11.6 °C 10.4–13.1
Precipitation64.5 mm/mo 59.1–71.1
Air humidity60.8 % 59.8–61.5
Moisture balance-58.2 mm/mo -68.1–-36.4
Vapour deficit648 Pa 605–714
Wind speed4.20 m/s 3.20–4.60
Cloud cover42.0 % 35.6–46.7
CHELSA 1981–2010, ~9 km grid, at location & month of 37 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.
WikipediaWikimedia Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 161 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI38 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics16 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗