Taxonomic and faunistic comments on European Parydra Stenhammar, 1844 (Diptera: Ephydridae) with new species from Finland and Jordan Author Stuke, Jens-Hermann text Zootaxa 2025 2025-08-26 5686 1 49 105 https://doi.org/10.11646/zootaxa.5686.1.3 journal article 10.11646/zootaxa.5686.1.3 1175-5326 16985323 E9EB1E28-99C8-4641-B4F9-CC7FFD3FE6DE Parydra ( Chaetoapnaea ) pusilla ( Meigen, 1830 ) ( Figs. 18 , 101–104 ) Ephydra pusilla Meigen 1830: 126 ; locus typicus not given [presumably Stolberg]; holotype ♂ [ MNHN , Becker 1902 ]. Napaea pygmaea Robineau-Desvoidy 1830: 800 ; locus typicus not given [presumably France ]; holotype ♂ / ♀ [missing from coll. Robineau-Desvoidy, Mathis & Zatwarnicki 1995 ]; synonymy by Cogan (1984) . Ephydra infecta Haliday 1833: 175 ; type-locality: „Holywood in Downshire“ [Britain]; 3 syntypes [NMID, de Courcy Williams & O'Connor 1989 ]; synonymy by Haliday (1839) . Ephydra ( Parydra ) nasuta Stenhammar 1844: 192–193 ; type-locality: „in Ostrogothia ad Häradshammar et prope Sudercopiam; in Bahusia ad Marstand“, „Lapponia et Bottnia“ [ Sweden ]; syntype ♂ ♀ [MZLU, UZIU, Mathis & Zatwarnicki 1995 ]; synonymy by Haliday (1856) . Material examined : 242 specimens from Germany , Finland , Iceland and European Russia with new country records from Georgia : GEORGIA : 1♀ , 12.vii.2019 , Kochki river s Epremovka [ 41.189°N 43.748°E ] ; 1♀ , 11.vii.2019 , lake Kartsakhi wsw Kartsakhi [ 41.236°N 43.249°E ] ; 1♀ , 10.vii.2019 , small lake 2.2 km ene Imera [ 41.650°N 44.215°E ] ; 2♂♂ , 3.vii.2019 , Snostskali river 0.6 km se Achkhoti [ 42.618°N 44.624°E ] ; 1♂ 1♀ , 4.vii.2019 , Snostskali river se Akhaltsikhe [ 42.588°N 44.667°E ] ; 1♀ , 11.vii.2019 , Vachiani lake [ 41.357°N 43.436°E ] . FIGURES 97–100 . Terminalia of Parydra pubera Loew. 97 , dorsal view. 98 , hypandrium, maximal expansion. 99 , phallus and phallus apodeme, lateral view. 100 , hypandrium with postgonite, lateral view. hy—hypandrium; pg—postgonite; ph—phallus; pha—phallus apodeme. FIGURES 101–104 . Terminalia of Parydra pusilla (Meigen) . 101 , dorsal view. 102 , hypandrium, maximal expansion. 103 , phallus and phallus apodeme, lateral view. 104 , hypandrium with postgonite, lateral view; hy—hypandrium; lpha—lateral arms of phallus apodeme; pg—postgonite; ph—phallus; pha—phallus apodeme. Diagnosis : A distinctive small Parydra species with the silver dusted face bearing two strong facial setae. The male terminalia is uniquely characterised by the large semicircular hypandrium ( Fig. 102 ) in dorsal view. Males are also unique in having sternite 5 densely setulose. Distribution in Europe : Widely distributed and not rare in boreal, Atlantic and continental Europe, rarer or unrecorded in southern Europe. Outside of Europe it has been reported from Turkey ( Pârvu & Popescu-Mirceni 2006 , Popescu-Mirceni 2011 ) and its distribution reaches east Asia ( Krivosheina 1995 ). Biology : Inhabits a wide variety of more or less vegetated freshwater or saline wetlands. Polyvoltine with the long flight period spanning at least from February until October and probably year-round. Stigmatomyces trianguliapicalis has been reported to grow on P. pusilla ( Rossi et al. 2010 ) . Nielsen et al. (1954) illustrate the larvae. The larval diet is currently unknown.