Ochetellus glaber
(Mayr, 1862) · speciesAt a glance
Sources10 archives
Databases and archives Ochetellus glaber's data was compiled from.
WikipediaWikimedia Foundation7 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 043 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI194 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics102 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
NCBIUS National Library of Medicinegenome & karyotype↗
Tree of SexTree of Sex Consortiumgenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Ochetellus glaber (also known as the black household ant) is a species of ant native to Australia. A member of the genus Ochetellus in the subfamily Dolichoderinae, it was described by Austrian entomologist Gustav Mayr in 1862. Aside from Australia, O. glaber has been introduced to a number of countries, including China, India, Japan, New Zealand, the Philippines and the United States, where it has established itself in Hawaii and Florida. It has been found on Lord Howe Island, New Caledonia, Norfolk Island, Réunion and the Solomon Islands. Compared with other ants, O. glaber is a small species, with workers measuring 2-3 mm. Males are the smallest at 1.6 mm, while the queens measure 5.2-5.5 mm. The ant's colour ranges from brown to black. Described as an arboreal nesting species, O. glaber lives in open or savannah woodland areas, nesting under stones, old dry logs, in hollow trees and plant stems, and rotten wood. Nests can also be constructed in buildings and structures, specifically in pavings, ceilings and walls. It is both diurnal and nocturnal, forming long trails from trees in search of food such as honeydew and insects. It has developed some associations with certain flowers and also tends to associate with some insects, such as mealybugs and aphids. During the nuptial flight, queens mate with either one or multiple males; males only mate with a single queen. Sometimes, a subset of a colony may leave the main colony for an alternative nest site as an act of dispersal. O. glaber often invades human homes to feed on household foods, and is considered a household pest. It has been intercepted numerous times in the United States, where it has the potential to disrupt the biological control of certain pests and cause long-term ecological impacts in areas where it is not native.
No narrative description available for this taxon yet.
No structured trait data 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 Ochetellus glaber has left across the world's sequence archives.
At a glance
★ 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.
Besides the big genome in the nucleus, cells carry a small, circular loop of DNA inside the cell's energy factories — the mitochondria. It is inherited almost only from the mother and is a leftover from ancient bacteria that moved into the cell. The mitochondrial markers above (ND*, COX, CYTB…) are read from exactly this loop. Outer ring = one strand, inner ring = the other.
The complete instruction manual Ochetellus glaber 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
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).
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 283×GoaT · Animal Chromosome Counts Database · GoaT · Tree of Sex Database · TreeOfSex · invert
2n 141×GoaT · Tree of Sex Database
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.
Record type2 043 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions11 of 24 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Auckland, NZ | 162 |
| MWLRlocation not on record | 158 |
| CASlocation not on record | 155 |
| Provo, US | 153 |
| NSMKlocation not on record | 118 |
| New Zealand Arthropod Collectionlocation not on record | 76 |
| DPIlocation not on record | 36 |
| Sydney, AU | 34 |
| Museums Victorialocation not on record | 15 |
| University of Central Floridalocation not on record | 13 |
| The University of Hawaii Insect Museumlocation not on record | 10 |
| Honolulu, US | 9 |
| Cambridge, US | 8 |
| Toyota city nature sanctuarylocation not on record | 5 |
| Australian National Fish Collectionlocation not on record | 5 |
| Lake Placid, US | 4 |
| Tasmanian Museum & Art Gallerylocation not on record | 3 |
| Zürich, CH | 2 |
| Washington, US | 2 |
| Chicago, US | 2 |
| QVMAGlocation not on record | 2 |
| Toyama, JP | 1 |
| DOI/NPS, Salem Maritime National Historic Sitelocation not on record | 1 |
| US | 1 |
Where the DNA of Ochetellus glaber 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
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
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.