Omphale nitens Graham

Hansson, Christer & Shevtsova, Ekaterina, 2012, Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae), ZooKeys 232, pp. 1-157 : 60-62

Omphale nitens Graham Figures 215-223517

Omphale nitens Graham, 1963: 256. Holotype female in OUMNH, examined.

Material.

Type material. Holotype female, type no. 1295 in OUMNH. Additional material. 12♀: France 2♀ (BMNH), Sweden 4♀ (CH, LUZM), United Kingdom 6♀ (BMNH).

Diagnosis.

Coxae yellowish brown with base darker, femora predominantly dark brown (Fig. 215); thoracic dorsum bright golden green (Fig. 217); flagellomeres 2-4 ventrally with two sets of setae, one attached subbasally and one subapically (Fig. 221). Similar to Omphale phruron but female gaster shorter, fore- and midcoxae usually paler, female flagellomeres 2-4 ventrally with two sets of setae, and body with brighter colours.

Description.

Female. Length of body 1.3-1.8 mm. Antenna with scape dark brown with base yellowish brown, pedicel and flagellum dark brown; pedicel + flagellum 2.2 × as long as distance between eyes; first flagellomere 1.2 × as long and 1.2 × as wide as second flagellomere (Fig. 221); flagellomeres 2-4 ventrally with two sets of setae, one attached subbasally and one subapically on each flagellomere; clava 1-segmented. Face golden purple (Fig. 216), strigose-reticulate (Fig. 222); clypeus golden green, smooth, semicircular, 1.4 × as wide as high; gena purple metallic; lower frons golden purple, with very weak reticulation and shiny, to smooth; antennal scrobes join on frontal suture; frontal suture V-shaped; upper frons purple metallic, with very weak reticulation and shiny, to smooth; vertex purple metallic, with engraved weak reticulation (Fig. 223). Occipital margin rounded (Fig. 223).

Mesoscutum golden green (Fig. 217), with engraved reticulation (Fig. 220), midlobe with one pair of setae (posterior pair); notauli as indistinct impressions in posterior ½. Scutellum golden green (Fig. 217), with engraved reticulation (Fig. 220); 1.2 × as long as wide, with anteromedian margin almost straight. Axillae golden green (Fig. 217). Dorsellum golden green (Fig. 217), convex and smooth (Fig. 220), 0.3 × as long as wide, and 0.6 × as long as length of median propodeum. Lateral pronotum golden green (Fig. 215), remaining parts of lateral mesosoma golden with green and purple metallic tinges; transepimeral sulcus curved forwards. Propodeum golden green (Fig. 217), smooth (Fig. 220); propodeal callus with two setae. Forecoxa yellowish brown with base dark brown (Fig. 215), to predominantly dark brown with only apex yellowish brown, midcoxa yellowish brown with base pale brown, hind coxa yellowish brown with base golden green; femora predominantly dark brown with apex yellowish brown; tibiae yellowish brown; foretarsus dark brown, mid- and hind tarsi yellowish brown with 4th tarsomere dark brown to completely dark brown; midleg with first tarsomere 0.3 × as long as length of tarsus. Forewing transparent, veins yellowish brown, setae dark brown (Fig. 218); speculum closed; admarginal setae 7-9, arising from ventral marginal vein; radial cell with bare part small, with setae in posterior part; postmarginal vein 1.4 × as long as stigmal vein, stigmal vein slender. Hind wing transparent, apex pointed (Fig. 218). Forewing WIP (Fig. 219) with apical ½ blue, basal ½ with wide bands in yellow, magenta and blue.

Petiole pale brown. Gaster with first tergite golden green, remaining tergites golden purple, slightly elongate and 1.3 –1.5× as long as length of mesosoma; 7th tergite 0.1 × as long as length of gaster.

Male. Unknown

Host.

Unknown.

Distribution.

France (new record), Sweden (new record), United Kingdom ( Graham 1963) (Fig. 517).