Omphale tenuicornis, Hansson, Christer & Shevtsova, Ekaterina, 2012

Hansson, Christer & Shevtsova, Ekaterina, 2012, Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae), ZooKeys 232, pp. 1-157 : 66-69

Omphale tenuicornis sp. n. Figures 248-262491520

Material.

Holotype female (BMNH), glued to a card, labelled "SWEDEN: Öland, Ismantorp, 56°45'N, 16°39'E, 20.vi.2007, C. Hansson". Paratypes. 17♀ 2♂: HUNGARY: 1♀ "4-5 km SW Köszeg, Meszas Völgy, 47°22'N, 16°31'E, 431m, 26.vi.2010, J.S. Noyes" (BMNH); 1♀ ”Örzeg Nemzeti Park, Lugosi Valley, 46°54'N, 16°27'E, 231m, 28.vi.2010, J.S. Noyes" (BMNH). RUSSIA: 12♀ "Gatchina, 25.vii.2006, E. Shevtsova" (BMNH, CH, LUZM). SWEDEN: 2♀ 2♂ with same label data as holotype (BMNH); 1♀ “Skåne, Silvåkra, 1.viii.1984, C. Hansson" (BMNH).

Diagnosis.

Antennal flagellum very slender (Figs 256, 260); frons smooth and shiny (Figs 257, 261); coxae yellowish white, remaining parts of legs darker (yellowish brown to dark brown) (Fig. 248); female gaster short ovate, 1.3 × as long as length of mesosoma (Fig. 248). Male genitalia: phallobase (Fig. 491) with volsellar setae on short extensions and with apex of setae 0.8 × the length of setae from apex of phallobase, digitus 1.3 × as long as wide; aedeagus long and slender (Fig. 491), with penis valves 2.7 × as long as wide.

Description.

Female. Length of body 1.3-1.5 mm. Antenna with scape pale brown with basal part yellowish white and with dorsal edge dark brown; pedicel and flagellum dark brown; pedicel + flagellum 2.6 × as long as distance between eyes; first flagellomere 1.1 × as long and 1.3 × as wide as second flagellomere (Fig. 256); flagello- meres 2-4 ventrally with two sets of setae, one attached at base and one attached in apical 1/3 of flagellomeres; clava 1-segmented. Face golden with green and red metallic tinges (Fig. 251), strigose (Fig. 257); clypeus greenish blue metallic, smooth, trapezoid, 1.9 × as wide as high; gena golden purple; frontal cross-ridge present; lower frons golden, smooth or with engraved very weak reticulation, subtorular area smooth; interscrobal area golden green, smooth; antennal scrobes join on frontal suture; frontal suture V-shaped; upper frons golden, smooth or with engraved very weak reticulation; vertex golden purple, close to eyes golden, with engraved reticulation, outside ocellar triangle partly smooth (Fig. 258). Occipital margin rounded (Fig. 258).

Mesoscutum bluish green metallic (Fig. 249), with engraved reticulation (Fig. 255), midlobe with one pair of setae (posterior pair); notauli as narrow grooves in anterior ½ and as indistinct impressions in posterior ½. Scutellum golden with posterior margin green metallic (Fig. 249), with engraved strong reticulation (Fig. 255); 1.0 × as long as wide, with anterior margin straight. Axillae golden (Fig. 249). Dorsellum golden green (Fig. 249), smooth and slightly convex (Fig. 255), 0.4 × as long as wide, and 0.5 × as long as length of median propodeum. Lateral pronotum and propleuron golden green with purple metallic tinges (Fig. 248); prepectus dark brown metallic; mesepisternum dark brown metallic; mesepimeron dark brown metallic; transepimeral sulcus strongly curved forwards. Propodeum green metallic (Fig. 249), smooth (Fig. 255); propodeal callus with two setae. Legs with coxae yellowish white (Fig. 248); femora dark brown to pale brown with ventral part yellowish brown; tibiae yellowish brown; foretarsus dark brown, mid- and hind tarsi yellowish brown with 4th tarsomere dark brown, or all tarsi dark brown; midleg with first tarsomere 0.3 × as long as length of tarsus. Forewing transparent, veins yellowish white and setae dark brown (Fig. 253); speculum closed; admarginal setae 7-8 arising from marginal vein; radial cell bare; postmarginal vein 1.6 × as long as stigmal vein; stigmal vein slender. Hind wing transparent, apex pointed (Fig. 253). Forewing WIP (Fig. 254) with apical ½ magenta, basal ½ with wide bands in blue, yellow and magenta.

Petiole yellowish brown. Gaster pale brown metallic, short ovate and 1.3 × as long as length of mesosoma; 7th tergite short, 0.3 × as long as wide and 0.05 × as long as length of gaster.

Male. Length of body 1.4 mm. Features as in female except as follows. Antenna with scape expanded, distinctly wider than in female (Fig. 260), dark brown with basal ⅓ yellowish white; pedicel + flagellum 3.1 × as long as distance between eyes; first flagellomere 1.2 × as long as second; flagellomeres 1-4 with verticillate setae and with setae apical to whorl. Face bluish purple metallic (Fig. 252); clypeus bluish purple metallic, semicircular, 1.5 × as wide as high; gena golden with green metallic tinges; lower frons bluish green metallic with purple tinges; interscrobal area with very weak reticulation; antennal scrobes join frontal suture separately; upper frons golden green, smooth; vertex inside ocellar triangle golden purple, outside golden green.

Mesoscutum with anterior ½ golden green, posterior ½ bluish green metallic (Fig. 250). Scutellum golden with posterior ⅓ bluish green metallic (Fig. 250), with engraved weak reticulation (Fig. 259); 1.1 × as long as wide. Dorsellum 0.2 × as long as wide, and 0.2 × as long as length of median propodeum. Lateral pronotum and propleuron bluish green metallic; mesepisternum pale brown metallic. Propodeum golden green to bluish green metallic (Fig. 250). Legs with coxae yellowish white with base pale brown; femora dark brown with ventral margin yellowish. Forewing veins pale brown; admarginal setae 5, arising mainly from marginal vein; postmarginal vein 1.5 × as long as stigmal vein.

Petiole dark brown. Gaster dark brown, shiny; 1.3 × as long as length of mesosoma. Phallobase and aedeagus as in Fig. 491.

Host.

Unknown.

Distribution.

Hungary, Russia, Sweden (Fig. 520).

Etymology.

From the Latin tenuis = thin, and cornu = horn, referring to the long and slender antennae.