The grey chi (; Antitype chi) is a moth of the family Noctuidae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is distributed throughout Europe, although it is not present in southern Spain and Greece, as well as northern Fennoscandia. It is also found across the Palearctic including Central Asia, to the Russian Far East but not in Japan. Front view Mounted Caterpillar This species has grey forewings speckled with black markings which vary in intensity (with the female generally more heavily marked than the male). There is usually a bold cross-shaped black mark in the centre of the wing which has been likened to the Greek letter chi (Χ) and gives the species its common name. The hindwings are white in the male, dirty grey in the female.
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 Antitype chi has left across the world's sequence archives.
At a glance
DNA specimens45
BINs2
Marker genes2
eDNA detections63
Countries11
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus44 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. 100% of positions are identical in every specimen.
Where individuals differ — all 3 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)0.29%
Haplotypes7
BINs2
Most divergent pair2.0%
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-5PEF1-alpha
animal barcodemarker
06Genome at a glanceGoaT · NCBI
The complete instruction manualAntitype chi carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Genome size≈632 202 931 bp assembly estimate
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
THIS GENOME Antitype chi0.63 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Assembly levelChromosome
Completeness99% BUSCO
08Occurrence & distribution
Record type32 985 records
Wild obs. + sensor25 475
Museum / vouchered6 879
Other631
Origin
Native1 354
Range
Area of Occupancy AOO30 064 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 accuracy38% within 1 km
≤100 m 5 443≤1 km 3 590≤10 km 14 685>10 km 124
23 842 georeferenced · 1 633 without coordinates
Open the mapobservation + sensor25 475
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 accuracy39% within 1 km
≤100 m 1 156≤1 km 1 472≤10 km 3 974>10 km 114
6 716 georeferenced · 163 without coordinates
Open the institutions mapphysical evidence6 879
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 institutions21 of 64 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
DanishLepidopterologicalSocietylocation not on record
2 546
Helsinki, FI
869
Provincia di Livornolocation not on record
523
Zürich, CH
227
NHMOlocation not on record
195
Bern, CH
184
NTNU-VMlocation not on record
159
Naturéum — Muséum cantonal des sciences naturelles, Lausanne, Département Zoologielocation not on record
97
Salzburg, AT
87
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record
86
Tartu, EE
77
Dhaka, BD
75
Geneva, CH
74
ZMAAlocation not on record
68
SLU Artdatabankenlocation not on record
63
Kuopio, FI
55
Paro, BT
54
CBDClocation not on record
53
Sion, CH
45
Philadelphia, US
42
Musee d'Histoire Naturallelocation not on record
40
Naturama Aargaulocation not on record
32
Naturmuseum St. Gallenlocation not on record
31
Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record
30
Fribourg, CH
29
SFRAlocation not on record
25
MZLUlocation not on record
25
Glarus, CH
23
Archäologie und Museum Baselland - Museum.BLlocation not on record
22
Universität Zürich, Naturhistorisches Museumlocation not on record
22
Frauenfeld, CH
22
Winterthur, CH
21
Naturmuseum Oltenlocation not on record
19
Tromsø, NO
18
Durban Natural Science Museumlocation not on record
15
UMUlocation not on record
14
Muzeum Górnośląskie w Bytomiulocation not on record
12
Museum zu Allerheiligen Schaffhausenlocation not on record
9
Tallinn, EE
8
BioFokuslocation not on record
7
Stockholm, SE
7
European Distributed Institute of Taxonomy (EDIT)location not on record
7
Uniwersytet Łódzkilocation not on record
5
neflocation not on record
5
John May Museum of Natural Historylocation not on record
4
South Kensington, GB
3
Tiroler Landesmuseum Ferdinandeumlocation not on record
3
KSSlocation not on record
2
NMBU:MINAlocation not on record
2
Musée de Saint-Imierlocation not on record
2
Metsähallituslocation not on record
2
ZSMlocation not on record
2
Zoological Museum of the University of Chittagong, Bangladeshlocation not on record
1
Museu Nacional de História Natural e da Ciêncialocation not on record
1
МПХУlocation not on record
1
ИЗШ НАНУlocation not on record
1
Nijmegen, NL
1
Bavarian State Collection of Zoologylocation not on record
1
Natural History Museum Rotterdamlocation not on record
1
DABUHlocation not on record
1
Museum of Zoology at the University of Bergen, Invertebrate Collectionlocation not on record
1
RERElocation not on record
1
Rovaniemi, FI
1
Natural History Museum, Londonlocation not on record
1
64 institutions · 6 059 of 6 879 vouchered records shown · 820 without an institution code
09Environmental DNA63 detections
Where the DNA of Antitype chi 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 found63
Studies independent surveys3
Countries11
Verifiable raw sequence linked18
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 63 detections have coordinates
Open the map11 countries0
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 median13.7 °C 4.60–16.2
Seasonal swing summer↔winter18.7 °C
Max temp (day)17.7 °C 8.60–20.1
Min temp (night)9.70 °C -0.3–13.5
Precipitation83.9 mm/mo 55.4–160
Air humidity61.5 % 57.7–64.6
Moisture balance3.30 mm/mo -35.3–100
Vapour deficit603 Pa 315–738
Wind speed3.50 m/s 1.90–6.10
Cloud cover43.0 % 35.2–54.3
CHELSA 1981–2010, ~9 km grid, at location & month of 62 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 Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility32 985 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI63 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics45 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
NCBIUS National Library of Medicinegenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗