Review of the genus Paramesius Westwood, 1832 (Hymenoptera: Diapriidae, Spilomicrini) from Russia, with description of four new species Author Chemyreva, Vasilisa G. Author Kolyada, Victor A. text Zootaxa 2018 2018-11-23 4524 4 453 472 journal article 27916 10.11646/zootaxa.4524.4.3 c0c8f32b-4a6e-4b70-a282-a0b610737fbe 1175-5326 2610662 2B8D6824-B111-4310-87F4-6B0D0617A86E Key to Paramesius species of the Palaearctic Region Female 1. Pleurostoma with sharp blade throughout (Fig. 4 arrows); pronotal cervical area densely pubescent; neck pubescent (Figs 2, 4); wings brachypterous to reaching apex of metasoma or sometimes longer......................................... 2 - Pleurostoma only with semicircular blade anteriorly near base of mandibula (Fig. 24 arrow); pronotal cervical area sparsely pubescent; neck bare or with a few short setae near pronotum ( Figs 13 , 15, 17, 19, 22, 26); wings always reaching apex of metasoma or distinctly longer.......................................................................... 3 2. Petiole ventrally without dense woolly pubescence (Fig. 5); propodeum with posterior margin in dorsal view deeply arcuate (Fig. 3)............................................................................ P. belytoides Marshall - Petiole ventrally with dense woolly pubescence (Fig. 6); propodeum with posterior margin in dorsal view weakly arcuate (Fig. 1)............................................................................. P. brachypterus Thomson 3. Mesopleuron ventrally with reticulation ( Fig. 27 ); propodealal spiracles large, its height only 4.0 times shorter than length of propodeum in lateral view ( Figs 28, 29 ).................................................. P. spiracularis sp. nov. - Mesopleuron ventrally without reticulation; propodeal spiracles small, its height 7.0 times shorter than length of propodeum in lateral view ( Figs 10, 12 )................................................................................ 4 4. A 12 in dorsal view elongate ( Fig. 36 ), if sometimes A12 subquadrate than notauli shallow anteriorly (Figs 25 arrow, 26)... 5 - A 12 in dorsal view transverse or subquadrate ( Figs 37, 42 ), notauli complete and deep throughout..................... 6 with a few solely long setae (Fig. 26)................................................. P. rufipes (Fonscolombe) - Notauli deep anteriorly with sharp margin throughout (Figs 14, 16, 22, 23); pronotal cervical area with numerous short and long setae (Figs 15, 17).................................................................. P. primorus sp. nov. 5. Notauli absent anteriorly to almost full but with not sharp lateral margin anteriorly (Figs 25 arrow, 26); pronotal cervical area 6. Pronotal cervical area with two lines of short furrows (Fig. 19); anterior scutellar pit weakly transverse, 1.7–1.6 times wider than its length, with one keel (Fig. 18).................................................... P. janmaceki sp. nov. - Pronotal cervical area without furrows (Fig. 15, 22, 26); anterior scutellar pit strongly transverse, 2.2–2.8 times wider its length, with tow–four keels (Fig. 14)..................................................................... 7 7. A13 shorter to as long as A12 and A11 together ( Figs 37, 39 ); mesoscutal suprahumeral sulcus absent, if present than shallow and smooth at bottom ( Fig. 13 )........................................................ P. crassicornis Thomson - A13 1.15–1.38 times longer than A12 and A11 together ( Fig. 33 ); mesoscutal suprahumeral sulcus full and deeply sculptured at bottom (Fig. 22)................................................................... P. ocampus sp. nov. Male 1. Pleurostoma with sharp blade throughout (Fig. 4); pronotal cervical area densely pubescent; neck densely pubescent (Figs 2, 4).................................................................................................... 2 - Pleurostoma with semicircular blade anteriorly near base of mandibula (Fig. 24); pronotal cervical area poorly pubescent; neck bare or with a few short setae near pronotum ( Figs 13 , 15, 17, 19, 22, 26)......................................... 3 2. Ventral surface of petiole without wooly pubescence (Fig. 5); propodeum with posterior margin in dorsal view deeply arcuate (Fig. 3); keel on A4 extending from base to one third of segment length......................... P. belytoides Marshall - Ventral surface of petiole with wooly pubescence (Fig. 6); propodeum with posterior margin in dorsal view weakly arcuate (Fig. 1); keel on A4 extending from base to half of segment length......................... P. brachypterus Thomson 3. Mesopleuron ventrally with reticulation and with keel extending from anterior to median coxae ( Fig. 27 ); propodeal spiracles large, its height 5.0 times shorter than propodeal length in lateral view ( Fig. 31 ).................. P. spiracularis sp. nov. - Mesopleuron ventrally without reticulation or without keel; propodeal spiracles small, its height 8.0 times shorter than propodeal length in lateral view ( Fig. 12 )...................................................................... 4 4. Pronotal cervical area high with two lines of short furrow (Fig. 19).............................. P. janmaceki sp. nov. - Pronotalcervicalarealowandsmooth(Figs13,22,26)........................ 5 5. Petiole 0.53–0.59 times as long as T2 length............................................. P. crassicornis Thomson - Petiole 0.37–0.50 times as long as T2 length................................................................ 6 6. A4 with keel extending to 0.55–0.60 of its length (Figs 46, 51); mesoscutal suprahumeral sulcus complete and deeply sculptured at bottom (Fig. 22)............................................................. P. ocampus sp. nov. - A4 with keel extending to 0.36–0.53 of its length (Figs 43, 47, 48, 52); mesoscutal suprahumeral sulcus shallow near notauli to absent (Figs 16, 26)................................................................................... 7 7. Occipital flange foveolate ( Fig. 11 ); pronotal cervical area with numerous short and long setae (Figs 15, 17); notauli deep, anteriorly with sharp lateral margin (Fig. 16)................................................ P. primorus sp. nov. - Occipital flange smooth; pronotal cervical area with a few solely long setae (Fig. 26); notauli shallow anteriorly or almost full but with not sharp lateral margin anteriorly (Figs 25 arrow, 26)............................. P. rufipes (Fonscolombe)