Eulophinae, Yefremova & Feldstein-Farkash, 2025

Key to the genera of Eulophinae with long metatibial spurs

(males are known for 6 genera)

1 Metatibia with one spur at apex.........................................................................2

– Metatibia with two spurs at apex .......................................................................3

2 Scutellum with two narrow sublateral grooves; TS1 1.1× as long as T1. Male known only for M. thoseae Ferrière , male antenna unbranched .... Metaplectrus View in CoL

– Scutellum with two broad crenulated grooves; TS1 1.3× as long as T1. Male unknown........................................................................................ Alveoplectrus View in CoL

3 Scutellum without lateral grooves .....................................................................4

– Scutellum with lateral grooves...........................................................................5

4 Propodeum with posteriorly diverging submedian carinae that originate separately from basal cup. Male unknown.......................................... Eurycephaloplectrus View in CoL

– Propodeum with distinct median carina. Male antenna without branches........... ............................................................................................................ Euplectrus View in CoL

5 Propodeum with strong median carina; mid lobe of mesoscutum with one pair of setae. Male antenna with or without branches...............................................6

– Propodeum with different structure. Male antenna without branches ...............7

6 Male antenna without branches; digiti of genitalia with 2 spines. TS1 1.3–2.3× as long as TS2; pronotum 2.3–2.5× broader than long in dorsal view................. ........................................................................................................ Platyplectrus View in CoL

– Male antenna with two branches ( Figs 1 View Figs 1, 2 , 3 View Figs 3–7 ); digiti of genitalia with 1 spine. TS1 2.25× as long as TS2; pronotum at least 2.5× broader than long in dorsal view. ............................................................................................ Ramiplectrus gen. n.

7 Propodeum divided into more than four areas, with complete median carina and two short incomplete submedian carinae......................................... Aroplectrus View in CoL

– Propodeum with two X- or H-shaped submedian carinae ...... Euplectromorpha View in CoL

Key to the genera of Eulophinae with branched male antennal segments

1 Male antenna: F1 and F2 with branch, F3 and F4 without branches; scutellum with two sublateral grooves .................................................................................2

– Male antenna: F1, F2 and F3 with branch, F4 without branches; scutellum without sublateral grooves ............ Dahlbominus View in CoL , Elasmus View in CoL , Eulophus View in CoL , Hemiptarsenus View in CoL , Necremnus View in CoL , Notanisomorphella View in CoL , Microlycus View in CoL , Pnigalio View in CoL , Sympiesis View in CoL

2 Mesoscutum without complete notauli; metatibia without spurs; mandibles well developed; branches of male antenna 2.0× as long as antennal scape; propodeum with distinct plicae........................................................................... Dicladocerus View in CoL

– Mesoscutum with complete notauli; metatibia with 2 long spurs; mandibles small without teeth; branches of male antenna as long as antennal scape; propodeum without plicae..................................................................... Ramiplectrus gen. n.