This list of 2025 in paleoentomology records new fossil insect taxa described during the year, as well as documents significant paleoentomology discoveries and events which occurred during that year.

Clade Amphiesmenoptera

Lepidopterans Name Novelty Status Authors Age Type locality Country Notes ImagesAgalope oshikiriiSp. novValidTakahashi, Aiba & SakamakiMiocene–PlioceneSanzugawa FormationA member of the family Zygaenidae belonging to the subfamily Chalcosiinae.BartheliusGen. et sp. novValidMeyEoceneBitterfeld amberA member of Gelechioidea of uncertain affinities. The type species is B. pumilus.EolimenitisGen. et sp. novValidFischer & HausmannEoceneBaltic amber()Taxon established for fossil forms of the subfamily Limenitidinae within the family Nymphalidae. Includes E. baltica, described on the basis of an egg inclusion in amber.FalcipalpusGen. et 2 sp. novHan, Zhang & Ren in Han et al.CretaceousKachin amberA member of the family Micropterigidae. The type species is F. rimosus; genus also includes F. parallelus.KrutzschiusGen. et sp. novValidMeyEoceneBitterfeld amberA member of Gelechioidea of uncertain affinities. The type species is K. nanarius.Symmoca hoffeinsorumSp. novValidMeyEoceneBaltic amberEurope (Baltic Sea region)A species of Symmoca.Tacola kamitaniiSp. novValidAiba, Takahashi & SaitoPliocene to PleistoceneTeragi GroupA member of the family Nymphalidae belonging to the subfamily Limenitidinae.

Trichopterans Name Novelty Status Authors Age Type locality Country Notes ImagesArchiphilopotamus sagulicusSp. novValidSukatsheva in Sukatsheva, Rasnitsyn & VasilenkoEarly JurassicA member of the family Philopotamidae. Published online in 2026, but the issue date is listed as December 2025.Baissoferus mongolicusSp. novValidSukatsheva & SinitshenkovaEarly CretaceousA member of the family Baissoferidae.Cladochorista uralicaSp. novValidSukatsheva & SinitshenkovaPermian()A member of the family Cladochoristidae.Multimodus yixianensisSp. novValidChao et al.Early CretaceousYixian FormationA member of the family Vitimotauliidae.Nyctiophylax ispokonvekovSp. novValidMelnitsky, Ivanov & Perkovsky in Melnitsky et al.Eocene (Priabonian)Rovno amberA member of the family Polycentropodidae.Plectrocnemia astroblemaSp. novValidMelnitsky, Ivanov & Perkovsky in Melnitsky et al.Eocene (Priabonian)Rovno amberA species of Plectrocnemia.Plectrocnemia idsukaсhevaeSp. novValidMelnitsky, Ivanov & Perkovsky in Melnitsky et al.Eocene (Priabonian)Rovno amberA species of Plectrocnemia.Plectrocnemia posleotboraSp. novValidMelnitsky, Ivanov & Perkovsky in Melnitsky et al.Eocene (Priabonian)Rovno amberA species of Plectrocnemia.Plectrocnemia stremglavSp. novValidMelnitsky, Ivanov & Perkovsky in Melnitsky et al.Eocene (Priabonian)Rovno amberA species of Plectrocnemia.TrichosukatsheviaGen. et 2 sp. novValidChao et al.Early CretaceousYixian FormationA member of the family Vitimotauliidae. Genus includes new species T. simplex and T. furcivenata.

Trichopteran research Caddisfly pupae with a morphology distinct from those of members of known Mesozoic trichopteran groups are described from the Barremian Shouchang Formation (Zhejiang, China) by Zhou & Huang (2025). Shcherbakov (2025) reinterprets purported thysanuran Planocephalus aselloides from the Eocene Florissant Formation (Colorado, United States) as a hydropsychid caddisfly and a senior synonym of Hydropsyche scudderi. Avrithis (2025) describes a forewing of a member of the genus Phryganea from the Vitala area of Kymi (Euboea, Greece), representing the first finding of a fossil caddisfly from the Early Miocene Anatolian landmass.

Clade Antliophora Dipterans

Brachycerans Name Novelty Status Authors Age Type locality Country Notes ImagesAcartophthalmites bicolorSp. novValidRoháčekEoceneBaltic amber()A member of Acalyptratae belonging to the family Clusiomitidae.Acartophthalmites scotopteryxSp. novValidRoháčekEoceneBaltic amber()A member of Acalyptratae belonging to the family Clusiomitidae.Acartophthalmites striatusSp. novValidRoháčekEoceneBaltic amber()A member of Acalyptratae belonging to the family Clusiomitidae.Atlatlia angulicaudaSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia corynouraSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia crypticaSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia electricaSp. nov ValidBickel in Bickel & MartinEoceneBaltic amber Bitterfeld amberBaltic Sea regionA species of Atlatlia.Atlatlia licinaSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia penicillataSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia ramosaSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia tonsaSp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A species of Atlatlia.Atlatlia ulrichiSp. nov ValidBickel in Bickel & MartinEoceneBaltic amber Bitterfeld amberBaltic Sea regionA species of Atlatlia.Aulacigaster alabasterSp. novValidGrimaldiMioceneDominican amberA member of the family Aulacigastridae.Aulacigaster breviradiaSp. novValidGrimaldiMioceneDominican amberA member of the family Aulacigastridae.Aulacigaster mathisiSp. novValidGrimaldiMioceneDominican amberA member of the family Aulacigastridae.Aulacigaster rungaeSp. novValidGrimaldiMioceneDominican amberA member of the family Aulacigastridae.BurmatriclisGen. et sp. novValidMiquel et al.CretaceousKachin amberA member of the family Asilidae. The type species is B. spinosus.Chrysopilus perseveransSp. novValidZhou et al.EoceneBaltic amberEurope (Baltic Sea region)A species of Chrysopilus.CrevermileoGen. et sp. novFeng et al.CretaceousKachin amberA member of the family Vermileonidae. The type species is C. cnuae.Eodromyia rovnoensisSp. novValidShamshev in Shamshev, Perkovsky & LegalovEoceneRovno amberA member of the family Hybotidae belonging to the subfamily Tachydromiinae.EoplatypalpusGen. et sp. novValidShamshev, Vasilenko & PerkovskyEoceneSakhalin amber()A member of the family Hybotidae. The type species is E. sachalinensis.EridanomyiaGen. et 2 sp. nov ValidBickel in Bickel & MartinEoceneBaltic amberEurope (Baltic Sea region)A member of the family Dolichopodidae. The type species is E. conjugalis; genus also includes E. amica.GuamaimengiaGen. et sp. novZhang, Zhang & ZhangEarly CretaceousLaiyang FormationA member of the family Eremochaetidae. The type species is G. laiyangensis.Hermetia cenoteevaniSp. novValidFachin & GomesMioceneMexican amberA species of Hermetia.IntricodonGen. et sp. novValidNidergas et al.OligoceneA hoverfly. The type species is I. cryptodaemoniacus.KashubiaGen. et 3 sp. nov ValidBickel in Bickel & MartinEoceneBaltic amber Bitterfeld amberBaltic Sea regionA member of the family Dolichopodidae. The type species is K. starki; genus also includes K. falcata and K. ornatipes.LehmhageniaGen. et sp. novValidZessinEarly Jurassic (Toarcian)Grimmen FormationA member of the family Protobrachyceridae. The type species is L. ansorgeiMesembrinella guimaraesiSp. novValidGomes & Solórzano-KraemerMioceneMexican amberA species of Mesembrinella.MeunieromyiaGen. et comb. novValidGrichanovEoceneBaltic amberEurope (Baltic Sea region)A member of the family Dolichopodidae. The type species is "Argyra" deceptoria Meunier (1907).Microphorites complanipedisSp. novValidZhang & Wang in Zhang et al.CretaceousMicrophorites curtipedisSp. novValidZhang & Wang in Zhang et al.CretaceousMicrophorites hamataculeusSp. novValidZhang & Wang in Zhang et al.CretaceousMythenteles evenhuisiSp. novValidPerkovsky et al.EoceneRovno amberA member of the family Mythicomyiidae.Palaeomedeterus manukyaniSp. novValidGrichanovEoceneBaltic amber()A member of the family Dolichopodidae.Palaeomedeterus subignavusSp. novValidGrichanovEoceneBaltic amber()A member of the family Dolichopodidae.Palaeomedeterus sublentusSp. novValidGrichanovEoceneBaltic amber()A member of the family Dolichopodidae.PaleoglutopsGen. et sp. novValidEngel, Gross & NelMiocenePaldau FormationA member of the family Pelecorhynchidae or Oreoleptidae. The type species is P. styriensis.Protanthomyza chelicerataSp. novValidRoháčekEoceneBaltic amber()A member of Acalyptratae belonging to the family Protanthomyzidae.Spilomyia kvacekiSp. novDaňková et al.OligoceneA species of Spilomyia.

Nematocerans