This paleoentomology list records new fossil insect taxa that were described during the year 2021, as well as notes other significant paleoentomology discoveries and events which occurred during that year.
Clade Amphiesmenoptera Lepidoptera New Lepidopteran taxa Name Novelty Status Authors Age Type locality Country Notes ImagesAcanthocoronaGen. et 7 sp. novValidMey, Léger & LienCretaceousCenomanianBurmese amberA Lophocoronidae moth. The type species is A. skalskiiThe genus also includes A. bowangi, A. kuranishii, A. muelleri, A. sattleri, A. spinifera, & A. wichardi.AgathiphagamaGen. et sp. novValidMey, Léger & LienCretaceousCenomanianBurmese amberAn agathiphagid aglossatan moth. The type species is A. perdita.Phyllocnistis cretaceaSp. novValidFischerLate Cretaceous (Cenomanian)Burmese amberA species of PhyllocnistisPhyllonorycter inopinataSp. novValidFischerLutetianBaltic amber()A species of Phyllonorycter
Lepidopteran research The first known Cretaceous caterpillar armoured with spines is described from the Burmese amber by Haug & Haug (2021). Fossil leaf mine produced by a lyonetiid-like leaf-mining moth, representing the oldest record of such moths reported to date, is described from the Upper Cretaceous (Campanian) Kaiparowits Formation (Utah, United States) by Maccracken et al. (2021), who name a new ichnotaxon Leucopteropsa spiralae.
Trichopterans Name Novelty Status Authors Age Type locality Country Notes ImagesArchaeopolycentra achupomotetSp. novValidMelnitsky & IvanovLate Cretaceous (Santonian)Kheta Formation(Taymyr amber)()A member of the family Polycentropodidae.Archaeopolycentra turvalsiaSp. novValidMelnitsky & IvanovLate Cretaceous (Santonian)Kheta Formation(Taymyr amber)()A member of the family Polycentropodidae.Cernotina fossilinovaSp. novValidWichard & NeumannProbably early MioceneDominican amberA caddisfly, a species of Cernotina.Electrotrichia rasnitsyniSp. novValidMelnitsky, Ivanov & PerkovskyLate EoceneRovno amberA member of the family Hydroptilidae.Folindusia aenigmatosaSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Folindusia expansaSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Folindusia inconspicuaSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Folindusia inventaSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Folindusia robustaSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Folindusia tortilisSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Holocentropus tutkaktutSp. novValidMelnitsky, Ivanov & PerkovskyEocene (Priabonian)Rovno amberA species of Holocentropus.Palaeopsilotreta kachiniSp. novValidWichard, Müller & XuCretaceousBurmese amberA member of the family Odontoceridae.Palaeopsilotreta succiniSp. novValidWichard, Müller & XuCretaceousBurmese amberA member of the family Odontoceridae.Plectrocnemia kirmikhiaSp. novValidMelnitsky, Ivanov & PerkovskyEocene (Priabonian)Rovno amberA species of Plectrocnemia.Psilotreta fossilisSp. novValidWichard, Müller & XuCretaceousBurmese amberA species of Psilotreta.Purbimodus khramoviSp. novValidSukatsheva & AristovEarly CretaceousA member of the family Vitimotauliidae.Terrindusia novaSp. novValidSukacheva & VasilenkoEarly CretaceousA larval case of a caddisfly.Wormaldia denticulataSp. novIn pressWang et al.Late Cretaceous (Cenomanian)Burmese amberA caddisfly, a species of Wormaldia.Wormaldia diplobifurcaSp. novIn pressWang et al.Late Cretaceous (Cenomanian)Burmese amberA caddisfly, a species of Wormaldia.
Clade Antliophora Dipterans New Dipteran taxa