Revision of the Central European species of Aclista (Diapriidae, Hymenoptera). Part II. Aclista insolita Nixon, 1957 Aclista dubia Kieffer, 1909 and similar species Author Macek, Jan text Acta Entomologica Musei Nationalis Pragae 2005 2005-12-31 45 183 197 journal article 10.5281/zenodo.5176581 0374-1036 5176581 Aclista longistilus ( Kieffer, 1909 ) ( Figs. 4 , 11, 18 , 25 , 32, 39 ) Anectata ( Anectata ) longistilus Kieffer, 1909: 533 , ♀ . Xenotoma brachycera Kieffer, 1910: 607 , J, syn. nov. Xenotoma ( Xenotoma ) brachycera : KIEFFER (1910) : 32 . Anectata longistilus : KIEFFER (1916) : 508 , 511. Aclista longistilus : JOHNSON (1992) : 36 . Type locality. France , Maisson-Laffite. Type material. Anectata longistilus : HOLOTYPE : ♀ , ‘Vittoria, Italy , Mantero lgt., J. Kieffer det.’ ( MCSN ). Xenotoma brachycera : HOLOTYPE : J, ‘Maisson-Laffite, France , de Gaulle lgt., J. Kieffer det. ’ ( MNHN ) . Additional material examined. CZECH REPUBLIC : BOHEMIA centr., Dobřichovice env., Karlík (6051), 28.viii.1984 , 18 spec. ; Praha-Krč (5952), 13.ix.1984 , 6 spec. ; Praha-Chuchle (6052), 14.ix.1984 , 2 spec. ; Grybla hill (6153), 1.vii.1982 , 1 spec. ; Beroun dist. , Vůznice brook (5950), 30.vi.1985 , 2 spec. ; Medník hill (6152), 16.vi.1985 , 2 spec. MORAVIA mer.: Podyjí NP, Čížov (7161), 21.vii.1997 , 1 spec. ; Kobylí (7067), 13.viii.1984 , 1 spec. SLOVAKIA bor.: Turzovka (6577), 18.vii.1938 , 1 spec. , F. Gregor lgt .; all J. Macek lgt. & det. unless stated otherwise. Figs. 1-7. Head, frontal view (female). 1 – Aclista insolita Nixon, 1957 ; 2 – A. vernalis sp. nov. ; 3 – A. dubia Kieffer, 1909 ; 4 – A. longistilus Kieffer, 1909 ; 5 – A. marginalis Kieffer, 1909 ; 6 – A. elegantula sp. nov. ; 7 – A. subtilis sp. nov. Scale = 1 mm. Diagnosis. Head in frontal view suboval, mandibles long, sickle-shaped, widely overlapping; mouth aperture narrow, toruli separated by shallow cleft; eyes large, its longest diameter slightly longer than malar space; antennae in female 15-segmented, with apical flagellomeres transverse and loosely articulated (submoniliform); antennae in males 14-segmented, filiform, flagellomere 1 not emarginated at base; scape cylindrical, curved; epomia strongly developed; notauli deep, slightly diverging posteriorly, radial cell short, slightly longer than marginal vein, propodeum transverse with strongly converging plicae; petiole cylindrical, longitudinally ribbed; gaster subovoid, pygidium as long as prepygidium; segments of prepy- gidium ring-like, loosely articulated; basal striation of macrotergite even, with indistinct medial furrow. Variability. The examined material shows no apparent variation. Differential diagnosis. The species is similar to A. marginalis but differs from it in the following characters: (i) antennae in females shorter with three preapical flagellomeres transverse and submoniliform; (ii) genal carina absent; (iii) antennal sockets prominent with a shallow cleft; (iv) frons smooth; (v) propodeum with sharp projections posteriorly; (vi) radial cell wide; (vii) longer petiole with distinct longitudinal ribs; and (viii) gaster covered with long semidecumbent hairs. Bionomy. Hosts unknown; flight period June to September. Distribution. France ( KIEFFER 1916 ), Italy ( KIEFFER 1916 ). New for Slovakia and the Czech Republic . Figs. 8-13. Head, dorsal view (female). 8 – Aclista insolita Nixon, 1957 ; 9 – A. vernalis sp. nov. ; 10 – A. dubia Kieffer, 1909 ; 11 – A. longistilus Kieffer, 1909 ; 12 – A. marginalis Kieffer, 1909 ; 13 – A. elegantula sp. nov. ; 14 – A. subtilis sp. nov. Scale = 1 mm. Comment. The above synonymy is based on the comparison of types with other material available.