Taxonomy, annotated new records and a checklist of Mymaridae (Hymenoptera) of Finland, with description of a new species of Eustochus Author Triapitsyn, Serguei V. Entomology Research Museum, Department of Entomology, University of California, Riverside, California, 92521, USA; Author Koponen, Martti Tuoppitie Author Vikberg, Veli Liinalammintie 11 as. Author Várkonyi, Gergely Finnish Environment Institute SYKE, Biodiversity Centre, FI- 88900, Kuhmo, Finland; e-mail: gergely. varkonyi @ ymparisto. fi text Acta Entomologica Musei Nationalis Pragae 2020 2020-11-06 60 2 565 589 http://dx.doi.org/10.37520/aemnp.2020.39 journal article 10.37520/aemnp.2020.39 1804-6487 5177724 659934F0-6B73-4571-8ADA-5E14CD3669EC Polynema ( Doriclytus ) atratum Haliday, 1833 Distribution. Palaearctic Region ( Austria , Belgium , Finland , Germany , Norway , Poland , Sweden , United Kingdom ) (Hൾඅඅඣඇ 1974; S*ö*üඎඉඉൾඇ*üൺඎൾ*© & T*©ංൺඉංඍඌඒඇ 2018; Nඈඒൾඌ 2019). Polynema ( Polynema ) flavipes Walker, 1846 Material examined ( 1 ♂ 42 ♀♀ , FMNH ). Al (Jomala), Ab (Dragsfjärd, Nauvo), N (Helsinki, Hyvinkää, Inkoo, Nurmijärvi, Porvoo [rural municipality]: Siuntio, Tammisaari), St (Nakkila), Ta (Hartola), Sa (Mikkeli [rural municipality]: Ristiina, Taipalsaari), Tb (Keuruu), Kb (Kitee), Om (Alajärvi). Distribution. Palaearctic Region ( Czech Republic , Ger- many, Netherlands , Romania , Sweden , United Kingdom ) (S*ö*üඎඉඉൾඇ*üൺඎൾ*© & T*©ංൺඉංඍඌඒඇ 2018; Nඈඒൾඌ 2019; Sൺආκ ඈඏග et al. 2020). New species record for Finland . Polynema ( Polynema ) fumipenne Walker, 1846 ( Fig. 15 ) Material examined. Ta : Janakkala, V. Vikberg: Harviala (6763:3369), moist Betula wood, 15.ix.1978 ( 1 ♀ , VVCT ); shore of Räikälä River (6755:3369), 13.viii.1978 ( 1 ♀ , VVCT ). Distribution. Palaearctic Region ( Belgium , Denmark , Finland , Germany , Greece , Ireland , Romania , Russia , Serbia , Sweden , United Kingdom ) (Hൾඅඅඣඇ 1974; Nඈඒൾඌ 2019). Polynema ( Polynema ) fuscipes Haliday, 1833 Material examined ( 14 ♂♂ 71 ♀♀ , FMNH ). Ab (Halikko, Paimio), N (Hanko,Helsinki,Hyvinkää,Lapinjärvi,Kirkkonummi,Nurmijärvi, Sipoo), Ka (Ylämaa), St (Nakkila,Rauma [rural municipality]), Ta (Forssa, Hartola, Janakkala, Lammi, Loppi), Sa (Mikkeli, Mikkeli [rural municipality], Ristiina), Oa (Ilmajoki), Tb (Hankasalmi), Sb (Maaninka). Material examined. Ta : Janakkala: Harviala (6763:3369), moist Betula wood, V. Vikberg: 15.ix.1978 ( 1 ♀ , VVCT ), 19.ix.1978 ( 5 ♀♀ , VVCT ), 25.ix.1978 ( 1 ♀ , VVCT ), 27.ix.1978 ( 1 ♀ , VVCT ); Suurisuo, 60°59’23’’N 24°48’49’’E , 137 m , 8.vii.2017 , S. V. Triapitsyn & V. Vikberg ( 4 ♀♀ , UCRC );Viralanjärvi (6753:8367), 24.ix.1978 ,V.Vikberg ( 5 ♀♀ , VVCT ). Hämeenlinna, Katinen (6767:3364), 7.ix.1978 , V. Vikberg ( 1 ♀ , VVCT ). Ab : Karkkila, Mäensyrjä (6713:3346), reared from Alopecurus pratensis , collected 10.v.1977 , emerged v.1977 , V. Vikberg ( 1 ♀ , VVCT ). Distribution. Palaearctic Region ( Belgium , Denmark , Estonia , Finland , Greece , Iceland , Norway , Russia , United Kingdom ) (Hൾඅඅඣඇ 1974; Nඈඒൾඌ 2019).