Arkys cornutus

L.Koch, 1872 · species

image placeholder — illustration coming later

Animalia/Arthropoda/Arachnida/Araneae/Arkyidae/Arkys

At a glance

Occurrence records354

Data sources9

Biological traits49

DNA specimens2

eDNA detections2

Sources9 archives

Databases and archives Arkys cornutus's data was compiled from.

WikipediaWikimedia Foundation5 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility354 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics2 specimens↗

World Spider Trait DBMasaryk University49 traits · 5 refs↗

World Spider CatalogNaturhist. Museum Bernworld catalog↗

Open Tree of LifeOpenTreephylogeny backbone↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page5 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements5 literature sources49 traits

Occurrence & distributionGBIF354 records

Environmental DNA1 datasets · 1 countries2 detections

DNA & barcodingBOLD2 specimens

01Narrative

Arkys cornutus, the horned triangular spider, is a common Australian spider belonging to the family Arkyidae. An ambush hunter, commonly found resting on leaves and fern. The front two pairs of legs are large and spined, suited for grabbing small insects, while the rear pairs of legs are smaller. The body length of males is smaller than the females, around 9 mm. Body colour varies from yellow or orange to red with pale spots on the heart shaped abdomen.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWolff et al. 2022Wolff et al. 2019Whyte & Anderson 2017Keyserling 1890Koch 1872

Morphometry44

ALE0.21 mm

AME0.12 mm

Abdomen height2.01 mm

Abdomen length2.96 mm

Abdomen width2.83 mm

Body length5.11 mm

Body mass0.023 mm

Cephalothorax height1.43 mm

Cephalothorax length2.88 mm

Cephalothorax width2.74 mm

Chelicerae basal part (paturon) length1.19 mm

Cribellum width0.05 mm

Fang length0.59 mm

Femur I length2.19 mm

Femur I width0.75 mm

Femur II length1.6 mm

Femur III length0.9 mm

Femur IV length1.91 mm

Femur IV width0.5 mm

Leg I length9.45 mm

Leg II length7.1 mm

Leg III length3.2 mm

Leg IV length6 mm

Metatarsus I length1.56 mm

Metatarsus II length1 mm

Metatarsus III length0.4 mm

Metatarsus IV length0.965 mm

PLE0.13 mm

PME0.2 mm

Patella I length1.15 mm

Patella II length0.8 mm

Patella III length0.3 mm

Patella IV length0.675 mm

Spinneret PLS0.3 mm

Tarsus I length1.27 mm

Tarsus II length0.7 mm

Tarsus III length0.3 mm

Tarsus IV length0.475 mm

Tibia I length1.55 mm

Tibia I width0.49 mm

Tibia II length1.1 mm

Tibia III length0.5 mm

Tibia IV length1.08 mm

Tibia IV width0.29 mm

Predation3

Hunting guildambush hunters

Hunting guild 2ambush hunter

Web buildingno

Biomechanics1

'Primary mode of locomotionwalking

Morphology1

Cribellumabsent

05DNA & barcoding2 specimens

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 Arkys cornutus has left across the world's sequence archives.

At a glance

DNA specimens2

BINs1

Marker genes1

eDNA detections2

Countries1

Marker genes sequenced

★ 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-5P

animal barcode

08Occurrence & distribution

Record type354 records

Wild obs. + sensor338

Museum / vouchered16

Range

Area of Occupancy AOO1 096 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 accuracy75% within 1 km

≤100 m 147≤1 km 55≤10 km 19>10 km 48

269 georeferenced · 69 without coordinates

Open the mapobservation + sensor338

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 accuracy33% within 1 km

≤100 m 1≤1 km 1≤10 km 2>10 km 2

6 georeferenced · 10 without coordinates

Open the institutions mapphysical evidence16

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 institutions2 of 2 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Sydney, AU	11
Natick, US	5

2 institutions · 16 of 16 vouchered records shown

09Environmental DNA2 detections

Where the DNA of Arkys cornutus 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 found2

Studies independent surveys1

Countries1

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 2 detections have coordinates

Open the map1 country0

Open forest

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 median18.0 °C 18.0–18.0

Seasonal swing summer↔winter8.60 °C

Max temp (day)23.0 °C

Min temp (night)13.2 °C

Precipitation20.2 mm/mo

Air humidity58.9 %

Moisture balance-49.3 mm/mo

Vapour deficit843 Pa

Wind speed1.40 m/s

Cloud cover32.6 %

CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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.

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