This genus Paramesius is newly reported from Hawaii, based on the observation posted by @Deptula https://www.inaturalist.org/observations/41970564 which elicited an independent confirmation by @kmagnacca who has collected it on Kauai and Hawaii in native forest. Not a great surprise as it's a widespread genus. Not sure if it's native or introduced.
Recently published! Revision of Palaearctic Idiotypa (Hymenoptera, Diapriidae, Diapriinae, Spilomicrini) - Chemyreva, Notton & Zaldívar-Riverón.
Free download on request here: https://www.researchgate.net/publication/351287846_Revision_of_Palaearctic_Idiotypa_Hymenoptera_Diapriidae_Diapriinae_Spilomicrini
A revision of the Palaearctic species of the genus Idiotypa Förster is provided. The genus Eunuchopria Szabó, 1961 is a junior synonym of Idiotypa Förster, 1856 syn. n. and the new combination Idiotypa nitens (Szabó, 1961) comb. n., is established. Dublicate original spellings I. marii and I. mariae are resolved by first reviser action; I. mariae is now the correct original spelling. Lectotypes are designated for Idiotypa mariae and I. maritima. New synonymy is proposed: I. maritima (Haliday, 1833) = I. rufiventris (Thomson, 1858) syn. n.; = I. nigriceps Kieffer, 1909 syn. n.; = I. nigriceps Kieffer, 1911 syn. n. The three valid species I. mariae Gregor, 1939, I. maritima (Haliday, 1833) and I. nitens (Szabó, 1961) are redescribed, illustrated and keyed.
Specimens at @NHM_London are digitised here: http://data.nhm.ac.uk
I'm not aware of any formal publications mentioning this, so the observation by @gwark may be the first: https://www.inaturalist.org/observations/77697710
This specimen may represent a new species and genus of the family Monomachidae: https://www.inaturalist.org/observations/47650538
It's a wingless female, but only two monomachid species are known in S. America with wingless females, both in the genus Chasca (https://www.biotaxa.org/Zootaxa/article/view/zootaxa.3188.1.2), and it doesn't look like them because it differs markedly in the form of the gaster among other things.
This appears to be the first record of the genus Coptera in Australia, unless anyone has a previous one? https://www.inaturalist.org/observations/109500586
