Hydroporinae
Hydroporinae is a subfamily of predaceous diving beetles in the family Dytiscidae. There are at least 2,200 described species in Hydroporinae.

S.E. Thorpe · CC0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- DytiscidaePBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At least 33 million years on record.
The record covers at least 33.9 Mya to 129 ka. No occurrence read is dated outside 37.71 Mya to 11.7 ka.
123 occurrences of Hydroporinae on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
123 occurrences- Eocene11%
- Oligocene4%
- Miocene23%
- Pleistocene62%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
15 formations
- Barstow Formation22
- Kap København Formation22
- Scarborough Formation8
- Highbury Silts and Sands Formation6
- Florissant Formation5
- Rott Formation3
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The named rock units Hydroporinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 40 occurrences have no formation on record, which is common for older literature.
Hydroporinae and its relatives
PleistoceneWhere Hydroporinae and its relatives were recorded in the Pleistocene.
Found in the same rock
3,135 taxa- Anostraca21 sites
- Schistomerus californense21 sites
- Dasyhelea antiqua20 sites
- Hydroporus20 sites
- Bembidion16 sites
- Stenus16 sites
- Pterostichus (Cryobius)14 sites
- Aphodius13 sites
- Aleocharinae12 sites
- Thripidae12 sites
- Agabus11 sites
- Bledius11 sites
- Phyllobius11 sites
- Protoarrenurus convergens11 sites
- Curculionidae10 sites
- Carabidae9 sites
- Carpelimus9 sites
- Helophorus9 sites
- Chrysolina8 sites
- Dyschirius8 sites
- Staphylinidae8 sites
- Tournotaris bimaculatus8 sites
- Amara7 sites
- Dytiscidae7 sites
The Paleobiology Database records 68 sites for Hydroporinae, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
29 references- Palaeoentomology of the Kap København Formation, a Plio-Pleistocene sequence in Peary Land, North Greenland22
- Miocene arthropods from the Mojave desert, California20
- Pleistoceńskie owady z Borysławia15
- Late Cenozoic insects of northern Eurasia8
- A Late Pleistocene fauna and flora from Upton Warren, Worcestershire8
- Canadian fossil insects, 4. Additions to the coleopterous fauna of the interglacial clays of the Toronto district8
- Marine Isotope Stage 9 environments of fluvial deposits at Hackney, north London, UK6
- The beetle (Coleoptera) fauna of the Insect Limestone (late Eocene), Isle of Wight, southern England3
- Hydroporus carstengroehni sp. n. und zwei unbestimmte Hydroporinae aus dem baltischen Bernstein (Dytiscidae: Hydroporinae)3
- Geradflügler und Wasserkäfer der oligocänen Ablagerungen von Rott3
- New Miocene Coleoptera from Florissant3
- The paleoenvironment of the Olympia beds based on fossil beetles from Discovery Park, Seattle, Washington, U.S.A.2
Each of the 123 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 17 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Hydroporinae
- Source
- Wikipedia/Commons
- Credit
- S.E. Thorpe
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Hydroporinae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDytiscidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Aubé 1836)