Mymaridae
The Mymaridae, commonly known as fairyflies or fairy wasps, are a family of chalcidoid wasps found in temperate, subtropical, and tropical regions throughout the world. The family contains around 100 genera with 1,400 species.

S.E. Thorpe · Public Domain · 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- Also called
- fairyflyPBDB
- Sits inside
- ChalcidoideaPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At least 93 million years on record.
The record covers at least 93.9 Mya to 11.7 ka. No occurrence read is dated outside 100.5 Mya to 0 Mya.
59 occurrences of Mymaridae on record, most of them in the Eocene. 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
59 occurrences- Late Cretaceous15%
- Eocene54%
- Miocene27%
- Holocene3%
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
4 formations
- Kishenehn Formation8
- Foremost Formation · Belly River Group3
- Dunstan Formation1
- Battle Formation1
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The named rock units Mymaridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 46 occurrences have no formation on record, which is common for older literature.
Mymaridae and its relatives
EoceneWhere Mymaridae and its relatives were recorded in the Eocene.
Found in the same rock
2,104 taxa- Diptera7 sites
- Araneae5 sites
- Forcipomyia5 sites
- Arachnida4 sites
- Arctogephyra agilis4 sites
- Entomobrya4 sites
- Glyptapis fuscula4 sites
- Tetraponera simplex4 sites
- Yantaromyrmex samlandicus4 sites
- Alaptus3 sites
- Alaptus pallidicornis3 sites
- Anaphes3 sites
- Archaeromma minutissimum3 sites
- Archiconiocompsa prisca3 sites
- Collembola3 sites
- Corynoptera klebsii3 sites
- Dasyhelea3 sites
- Electrodiplectrona decipiens3 sites
- Electroteleia stigmatica3 sites
- Eocryphoeca gracilipes3 sites
- Eohelea sinuosa3 sites
- Forcipomyia (Forcipomyia) uncula3 sites
- Gesomyrmex hoernesi3 sites
- Helius minutus3 sites
The Paleobiology Database records 32 sites for Mymaridae, 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
19 references- Compression fossil Mymaridae (Hymenoptera) from Kishenehn oil shales, with description of two new genera and review of Tertiary amber genera16
- The fossil Mymaridae10
- Cretaceous chalcidoid fossils from Canadian Amber7
- Contribution a la fauna des Mymaridae "ou Atomes Ailés" de l'ambre6
- World reclassification of the Gonatocerus group of genera (Hymenoptera: Mymaridae)3
- Cretaceous African life captured in amber2
- Sur deux Mymarinae du copal récent de Madagascar et de Zanzibar (Hym.)2
- Sur deux Mymaridae de l'ambre de la Baltique2
- New Canadian amber deposit fills gap in fossil record near end-Cretaceous mass extinction1
- Eotriadomeroides abjunctus Huber, gen. & sp. nov. (Hymenoptera, Mymaridae), in Eocene shale from the Kishenehn Formation, USA1
- Amber inclusions from New Zealand1
- A fossil species of the primitive mymarid genus Borneomymar (Hymenoptera: Mymaridae) in Eocene Baltic amber1
Each of the 59 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. 7 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 Mymaridae
- Source
- Wikipedia/Commons
- Credit
- S.E. Thorpe
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Mymaridae was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Fairyfly”
- 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 itChalcidoidea through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Haliday 1833