Scorpioteleia nixoni, Macek, 2006

Macek, Jan, 2006, Revision of the European species of Scorpioteleia (Hymenoptera: Diapriidae), Acta Entomologica Musei Nationalis Pragae 46, pp. 197-210 : 202-205

Scorpioteleia nixoni sp. nov.

( Figs. 2 , 7, 12, 17, 22)

Miota longiventris: NIXON (1957) : 104 (nec KIEFFER 1910). Miota longiventris: WALL (1967) : 157 (nec KIEFFER 1910).

Type locality. Czech Republic, Králický Sněžník Mt., Horní Morava valley.

Type material. HOLOTYPE: ♀, ‘CZ, Králický Sněžník NR, Horní Morava (valley) (5866), 24.viii.2001, J. Macek lgt. et det.’ ( NMPC) . ALLOTYPE: J, ‘CZ, Bohemia mer., Pelhřimov env., Křemešník (hill) (6557), 16.vii.1982, J. Macek lgt. et det.’ ( NMPC) . PARATYPES: CZECH REPUBLIC: BOHEMIA occ., Sokolov distr., Rašeliny (hopper) (5742), 28.viii.2001, 1 ♀, P. Chvojka & J. Ježek lgt .; Sokolov distr., Svatý Jiří (hopper) (5742), 6.vii.2001, 1 J, P. Chvojka & J. Ježek lgt. BOHEMIA bor., Dubá (5453), 27.vii.1986, 1 ♀ ; Bělá u Děčína (5251), 20.viii.1956, 2 ♀♀, Z. Bouček lgt.. BOHEMIA or., Orlické hory Mts. , Zvonkové údolí (valley) (5764), 21.vii.2003, 2 JJ ; Orlické hory Mts., Pod Sfingou (forest) (5764), 19.viii.2003, 1 ♀ ; Orlické hory Mts., Kamenec (hill) (5663), 9.x.1995, ♀, J. Hájek lgt .; Běstvina (6159), 18.vii.1985, 1 ♀. BOHEMIA mer., Pelhřimov env., Křemešník (hill) (6557), 16.vii.1982, 1 J ; Stará Obora (forest) (6952), 5.vii.1982, 1 J ; Lomnice nad Lužnicí env., Kolenská obora (forest) (6954), 2.vii.1981, 1 J ; Novohradské hory Mts., Myslivna (hill) (7354), 11.viii.1993, 1 J ; Třeboň env., Stříbřec (6955), 17.x.1985, 1 ♀ ; Rožmberk nad Vltavou (7352), 5.vii.1981, 1 ♀. MORAVIA mer., Moravian Karst, Pustý žleb (valley) (6666), 8.viii.1991, 1 ♀ ; Ubušín (6363), 2.viii.1938, 2 ♀♀, F. Gregor lgt . AUSTRIA: WIEN, ix.1917, 1 ♀, J. Sekera lgt. STYRIA: S Hizmansdorf bei Mühlen , 950 m a.s.l., 23.vii.1971, 2 ♀♀, M. Fischer lgt. ( NHMV) . POLAND bor.: Bory Tucholskie (forest), Sliwice , 22.ix.1987, 1 ♀ . RUSSIA: LENINGRAD prov., Pavlovsk , 17.ix.1963, Z. Bouček lgt., 1 ♀. All paratypes J. Macek lgt. and det., unless stated otherwise ( NMPC) .

Description. Female (holotype). Length 4.5 mm. Colour black brown; antennae, legs, mandibles and palpi yellowish.

Head higher than long in lateral view; strongly transverse in dorsal view, triangular with smooth face in frontal view; antennal sockets prominent, with indistinct rugosity below; toruli closely approximated, their distance shorter than diameter of each torulus; temples converging posteriorly; ocelli distinct, OOL> POL; longitudinal diameter of eye as long as malar space; eyes very sparsely pubescent; subantennal furrows very short, slightly indicated; antennae very long, filiform, with short dense pubescence; scape very slender, slightly curved, 1.5 times as long as F1; flagellomeres very slender, cylindrical, becoming shorter towards apex of antenna; F1 five times as long as wide; subapical flagellomere three times as long as wide.

Mesosoma convex, slightly narrower than head; pronotal shoulders angular; lateral pronotum smooth and very shiny, visible from above; each pronotal shoulder connected with tegula by distinct upper rim lining the sulcus; mesoscutum convex; scutellum convex, smooth, with large subquadrate anterior fovea; lateral foveae smooth, with a very fine tuft of pubescence; dorsellum flat; lateral sides of metanotum smooth with deep hollow; propodeum slightly transverse with subquadrate dorsal surface, sparsely pubescent; posterior margin of propodeum with indistinct rim; medial keel of propodeum simple, indistinct; plicae not prominent posteriorly.

Wings hyaline with all veins tubular; marginal vein slightly shorter than parastigma; radial cell closed, 1.5 times as long as marginal vein; postmarginal vein widely surpassing radial cell; stigmal vein curved, slightly oblique to marginal vein, shorter than marginal vein.

Petiole very long, five times as long as wide, slender, with longitudinal ribs and irregular fine rugosity between them; gaster fusiform; macrotergite smooth, lustrous with very sparse hairs, compressed posteriorly, covering most of the visible part of gaster; remaining gastral

Figs. 6-15. 6-10 – antenna, female. 6 – Scorpioteleia longepetiolata ( Thomson, 1859) ; 7 – S. nixoni sp. nov.; 8 – S. compressa (Kieffer, 1910) ; 9 – S. cebes Nixon, 1954 ; 10 – S. luteipes Kieffer, 1910 . Scale = 1 mm. 11-15 – antenna, male, basal part. 11 – S. longepetiolata ; 12 – S. nixoni sp. nov.; 13 – S. compressa (Kieffer, 1910) ; 14 – S. cebes Nixon, 1954 ; 15 – S. luteipes Kieffer, 1910 . Scale = 0.5 mm.

segments largely collapsed into gastral segment 1 but pygidium exposed; basal sculpture of macrotergite indistinct; gonoplacs strongly pigmented.

Male (allotype). Scape slender, shorter than F1; F1 with deep semicircular emargination on basal half.

Variability. The examined material shows no substantial variation apart from body size (2.5- 4.5 mm).

Differential diagnosis. Scorpioteleia nixoni sp. nov. is very similar to S. longepetiolata and differs only by the slender mesosoma and very long, filiform antennae in females and deeply emarginated flagellomere 1 in males (see also the key above).

Etymology. This species is dedicated to G. E. J. Nixon, a prominent British hymenopterologist.

Bionomics. Hosts unknown; flight period from July to September.

Distribution. Known only from the Czech Republic, Austria, Sweden, Russia (Leningrad Province) and Poland.

Remark. In his key, NIXON (1957) included two distinct species of the former Miota which have a long petiole and compressed gaster – M. longiventris nec Kieffer, 1910, and M. longepetiolata ( Thomson, 1859) . Because the true M. longiventris Kieffer, 1910 , is conspecific with M. longepetiolata (based on the revision of type specimens), Nixon’s ‘ M. longiventris ’ is here recognized as a new species.

Figures

Figs. 1-5. Habitus, dorsal view, females. 1 – Scorpioteleia longepetiolata (Thomson, 1859); 2 – S. nixoni sp. nov.; 3 – S. compressa (Kieffer, 1910); 4 – S. luteipes Kieffer, 1910; 5 – S. cebes (Nixon, 1957). Scale = 3.5 mm