Euplectrus maculiventris Westwood, 1832

Hansson, Christer & Schmidt, Stefan, 2018, Revision of the European species of Euplectrus Westwood (Hymenoptera, Eulophidae), with a key to European species of Euplectrini, Journal of Hymenoptera Research 67, pp. 1-35 : 18-19

Euplectrus maculiventris Westwood

Figures 14 , 30-32 , 50

Euplectrus maculiventris Westwood, 1832:128. Lectotype female in OUMNH, examined. Combined to Eulophus by Haliday (1842:plateJ); synonymized with E. bicolor by Bouček and Askew (1968:14); revalidated by Zhu and Huang (2002:134).

Material

(249♀ 200♂). Finland: 15♀ 8♂ (VV), 153♀ 121♂ (MZH, MZLU, ZSM), this material includes 11♀ 4♂ from Agrotis segetum , 5♀ from Eurois occulta , 4♀ from Lithomoia solidaginis ; France : 22♀ 9♂ (NHM); Spain : 1♀ 2♂ (MZLU, NHM); Sweden : 35♀ 43♂ (MZLU, NHM), this material includes 6♂ from Mniotype satura ; United Kingdom : 23♀ 17♂ (NHM).

Diagnosis.

Female with clypeal area pale, and with pale colour drawn out towards eye and almost reaches eye but with part below the eye dark (Fig. 30 ), male with entire frons below level of toruli pale and with parts lateral to toruli pale (Fig. 31 ); female with reticulation on scutellum with isodiametric meshes (Fig. 50 ), reticulation usually strong but there is some variation in this and some specimens have weak reticulation; male scape 2.8-3.0 × (mean 2.86, n=10) as long as wide (Fig. 14 ). Similar to E. bicolor , including the narrow posterior part of midlobe of mesoscutum, but can be distinguished from this species through the colour of lower face (both sexes) - pale area confined to clypeal region in E. bicolor , and through the reticulation on the scutellum (females only) - meshes elongate in E. bicolor . Males are similar to males of E. geometricida , but can be distinguished through the relatively long and slender scape.

Hosts.

Agrotis segetum (Denis & Schiffermüller), Eurois occulta (L.), Lithomoia solidaginis ( Hübner), Mniotype satura (Denis & Schiffermüller). All records are from caterpillars of the Noctuidae .

Distribution.

United Kingdom ( Westwood 1832), Finland, France, Spain, Sweden (new/confirmed records).

Genetic data.

The single barcoded specimen of E. maculiventris was assigned a distinct BIN and shows a distance of 11.3% to the next neighbour species, E. bicolor (Fig. 63 ).

Figures

Figure 63. Neighbour-joining tree of Euplectrus, with colours indicating different Barcode Index Numbers (BINs). For a fully resolved tree with additional terminal taxa information, including sequence length and country of origin, see Suppl. material S 2.

Figures 7 - 16. Euplectrus spp.: 7 - 12 E. bicolor (Swederus) 7 - 9 neotype, female 7 habitus lateral 8 habitus dorsal 9 head frontal 10 non-type female, head front-lateral 11 head frontal, male 12 head front-lateral, male 13 E. flavipes (Fonscolombe), gaster dorsal, male 14 - 15 head including scape lateral, male 14 E. maculiventris Westwood 15 E. geometricida sp. n. 16 E. carinifer sp. n., gaster dorsal, male.

Figures 27 - 35. Euplectrus spp.: 27 - 29 E. intactus (Walker) 27 head frontal, female 28 head frontal, male 29 gaster dorsal, female 30 - 32 E. maculiventris Westwood 30 head frontal, female 31 head frontal, male 32 gaster dorsal, female 33 - 35 E. flavipes (Fonscolombe) 33 head frontal, female 34 head frontal, male 35 gaster dorsal, female.

Figures 48 - 51. Euplectrus spp., mesosoma dorsal, female: 48 E. bicolor (Swederus) 49 E. intactus (Walker) 50 E. maculiventris Westwood 51 E. flavipes (Fonscolombe).