Omphale versicolor (Nees)

Hansson, Christer & Shevtsova, Ekaterina, 2012, Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae), ZooKeys 232, pp. 1-157 : 21-24

Omphale versicolor (Nees) Figures 58-72481505

Eulophus versicolor Nees, 1834:169. Neotype female in LUZM, examined.

Entedon anthylla Walker, 1839:85. Lectotype female in BMNH, examined. Syno-nymized by Graham (1963:260).

Derostenus (Omphale) versicolor (Nees), Thomson (1878:269).

Omphale versicolor (Nees), Graham (1959:201).

Omphale versicolor (Nees), Graham (1963:260).

Omphale versicolor (Nees), Hansson (1996b:17).

Material.

Type material. Neotype female of Eulophus versicolor , type no. 118:1 in LUZM, and lectotype female of Entedon anthylla , type no. 5.2039 in BMNH. Additional material. 173♀ 65♂: France 9♀ (BMNH, RMNH), Germany 1♀ (RMNH), Netherlands 2♀ (RMNH), Slovenia 1♀ (RMNH), Sweden 111♀ 23♂ (BMNH, CH, LUZM, NHRS, RMNH), United Kingdom 53♀ 42♂ (BMNH).

Diagnosis.

Forewing with open speculum, enlarged stigmal vein and with radial cell hairy (Fig. 63); scutellum usually metallic purple (Figs 59, 60); upper mesepimeron metallic purple (Fig. 58); legs yellow to yellowish white (Fig. 58); antennal scrobes join frontal suture separately (Figs 67, 71); clypeus with same colour as face (Figs 61, 62); face strigose (Figs 67, 71); female antenna with basal ½ of first flagellomere as wide as 2nd but then gradually narrows off towards apex (Fig. 66); male scape elongate, reaching above level of vertex, narrow in basal ⅓ and enlarged in apical ⅔ (Fig. 70).

Description.

Female. Length of body 1.4-2.3 mm. Antenna with scape with outer surface yellowish brown, inner surface with basal ⅓ yellow to yellowish white and apical ⅔ pale brown; pedicel and flagellum dark brown and metallic; pedicel + flagellum 2.0 × as long as distance between eyes; first flagellomere 1.1 –1.3× as long as second flagellomere, at base with same width as second and gradually narrowing towards apex (Fig. 66); flagellomeres 1-3 with ventral setae short, basal setae not reaching apex of flagellomere attached to; longitudinal sensilla on flagellomeres scattered; clava 2-segmented. Face green metallic with golden tinges, to bluish green metallic (Fig. 61), strigose (Fig. 67); clypeus green metallic, to bluish green metallic, smooth, rectangular to trapezoid, 1.2 × as wide as high; gena golden red with green tinges, to golden green; lower frons green metallic with golden tinges, with raised reticulation, subtorular area smooth, interscrobal area with raised reticulation; antennal scrobes join frontal suture separately; frontal suture U-shaped; upper frons golden red with green tinges, to golden green with engraved reticulation; vertex golden red with green tinges, with engraved reticulation (Fig. 68). Occipital margin rounded (Fig. 68).

Mesoscutum green metallic with golden tinges (Fig. 59), to bluish green metallic, with engraved reticulation (Fig. 65), midlobe with two pairs of setae; notauli as indistinct impressions in posterior ½. Scutellum purple metallic (Fig. 59) to golden red, occasionally golden green, with engraved and weak reticulation (Fig. 65); 1.2 × as long as wide, with anterior margin smoothly curved forwards. Axillae green metallic with golden tinges (Fig. 59). Dorsellum green metallic (Fig. 59), smooth and flat (Fig. 65), 0.3 × as long as wide, and 0.5 –0.6× as long as length of median propodeum. Lateral pronotum green metallic with golden and red tinges (Fig. 58); propleuron greenish blue metallic; prepectus green metallic to golden red; acropleuron dark brown; mesepi-sternum golden, to golden red; upper mesepimeron brown with purple metallic shine; lower mesepimeron brown metallic; transepimeral sulcus curved forwards. Propodeum green metallic (Fig. 59), smooth with a fovea anteromedially (Fig. 65); propodeal callus with two setae. Foreleg yellow to yellowish white with base of coxa pale brown and tarsus dark brown (Fig. 58); midleg yellow to yellowish white, with tarsomere 3 and 4 brown to yellowish brown, first tarsomere 0.3 × as long as length of tarsus; hind leg yellow to yellowish white with base of coxa brown and tarsus pale brown with tarsomere 4 brown to yellowish brown. Forewing transparent, veins yellowish brown and setae dark brown (Fig. 63); speculum open; admarginal setae 10-19, arising mainly from wing membrane; radial cell setose; postmarginal vein 0.8 × as long as stigmal vein; stigmal vein enlarged. Hind wing transparent, apex rounded (Fig. 63). Forewing WIP (Fig. 64) with apical ½ yellow, basal ½ with wide bands in magenta, blue and yellow.

Petiole pale brown to yellowish brown. Gaster with tergite 1 green metallic, tergites 2-7 brown with green, red and golden tinges, elongate and 1.7 –2.0× as long as length of mesosoma; 7th tergite 0.2 × as long as length of gaster; 7th tergite with hairless basal part smooth and apical hairy part sculptured.

Male. Length of body 1.1-1.7 mm. Features as in female except as follows. Antenna (Fig. 70) with scape long, apical ⅓ reaching above level of vertex, narrow in basal ⅓ and yellowish white, expanded in apical ⅔ which is brown non metallic on outer surface and brown with strong green metallic shine on inner surface; pedicel with same metallic shine as inner upper surface of scape; flagellum brown with golden tinges; pedicel + flagellum 2.7 × as long as distance between eyes; first flagellomere 1.2 –1.3× as long as second; flagellomeres with scattered setae; clava 1-segmented. Face green metallic (Fig. 62), sometimes with blue tinges; clypeus green metallic, rectangular; gena golden red; lower frons green metallic with golden tinges and upper ⅓ bronze, with raised weak reticulation (Fig. 71); interscrobal area with raised weak reticulation in upper ⅓; upper frons bright golden red and smooth.

Mesoscutum green metallic (Fig. 60), midlobe with strong yellowish red shine and sidelobes with golden tinges. Scutellum purple metallic (Fig. 60), occasionally golden green or bluish green metallic; 1.3 –1.4× as long as wide. Axillae green metallic with purple tinges (Fig. 60). Dorsellum brown with green metallic tinges (Fig. 60), 0.5 × as long as wide, and 0.5 –0.7× as long as length of median propodeum. Propleuron and prepectus green metallic; mesepisternum golden red, sometimes with green tinges; upper mesepimeron purple metallic; lower mesepimeron brown purple metallic tinges. Propodeum brown with green metallic tinges (Fig. 60). Legs yellowish-white, tarsi pale brown. Forewing veins and setae dark brown; admarginal setae 16-19, arising mainly from wing membrane; postmarginal vein 1.1 × as long as stigmal vein.

Petiole pale brown. Gaster with tergite 1 green metallic, tergites 2-7 brown, 1.1 –1.2× as long as length of mesosoma. Phallobase and aedeagus as in Fig. 481.

Host.

Unknown.

Distribution.

Czech Republic ( Bouček and Askew 1968), France (new record), Germany ( Nees 1834), Hungary ( Erdös 1956), Netherlands (new record), Slovenia (new record), Sweden ( Thomson 1878), United Kingdom ( Walker 1839); Canada and USA ( Hansson 1996b) (Fig. 505).