Diglyphus sabulosus Erdös

Hansson, Christer & Navone, Paolo, 2017, Review of the European species of Diglyphus Walker (Hymenoptera: Eulophidae) including the description of a new species, Zootaxa 4269 (2), pp. 197-229 : 205-206

Diglyphus sabulosus Erdös

Figs 17, 18 , 41 , 69, 70 , 78

Diglyphus sabulosus Erdös, 1951:197 , lectotype female in HNHM, examined. Diglyphus sabulosus ; Thuróczy, 1992: 167, lectotype designation.

Diagnosis. Scape white with apical ⅓–½ dark brown ( Figs 69, 70 ); legs ( Fig. 41 ): fore femur with basal ½ dark brown and metallic and apical ½ yellowish-white, mid femur with basal ½–¾ dark brown and metallic and apical ⅓–½ yellowish-white, hind femur with basal ¾ dark brown and metallic and apical ⅓ yellowish-white; fore tibia lightly infuscate, mid tibia yellowish-white, hind tibia yellowish-white with a dark brown ring close to base but occasionally completely pale; fore wing speculum bare or with a few scattered setae (as in Fig. 72 ); male gaster completely dark and metallic ( Fig. 18 ).

Material. France: 3♀ ( BMNH) . Italy: 7♀ 25♂ (PN) . Romania: 19♀ 3♂ ( BMNH) . Russia: 2♀ ( ZISP) . Spain: 1♀ ( BMNH) . Sweden: 7♀, of which 5♀ are reared from Agromyza rondensis Strobl 1900 on Elytrigia repens Desv. ex Nevski 1933 (Poaceae) ( BMNH, MZLU) .

Distribution. Czech Republic ( Bouček & Askew 1968), Hungary ( Erdös 1951), Italy *, Romania ( Bouček & Askew 1968), Russia *, Slovakia ( Kalina 1989), Sweden ( Hedqvist 2003), Turkey ( Yefremova et al. 2011), Ukraine ( Bouček & Askew 1968).

Remarks. The male paralectotype of D. sabulosus we have examined (in HNHM) belongs to D. puszte nsis. The specimens collected in Sweden and Italy show a marked preference for Agromyzidae mining Poaceae .

Figures

FIGURE 78. Diglyphus spp., schematic drawings of femora + tibiae from top to bottom: fore, mid and hind leg; scape + pedicel. Species are arranged according to colour of the scape, from pale to dark, and then according to colour of the legs, also from pale to dark.

FIGURES 17 – 30. 17 – 28, Diglyphus spp., length of body, habitus in dorsal view: 17, D. sabulosus Erdös female, 1.6 mm; 18, D. sabulosus male, 1.5 mm; 19, D. begini (Ashmead) female, 1.7 mm; 20, D. begini male, 1.1 mm; 21, D. chabrias (Walker) female, 2.1 mm; 22, D. chabrias male, 1.6 mm; 23, D. eleanorae Graham female, 1.6 mm; 24, D. eleanorae male, 1.5 mm; 25, D. pachyneurus Graham female, 1.9 mm; 26, D. pachyneurus male, 1.6 mm; 27, D. propodealis Szelényi female holotype, 1.5 mm; 28, D. subplanus (Erdös) female, 1.3 mm. 29 & 30. Stigmal vein: 29, D. chabrias; 30, D. propodealis.

FIGURES 37 – 42. Diglyphus spp., length of body, female habitus in lateral view: 37, D. isaea (Walker), 1.7 mm; 38, D. minoeus (Walker), 1.8 mm; 39, D. pachyneurus Graham, 1.9 mm; 40, D. poppoea Walker, 1.2 mm; 41, D. sabulosus Erdös, 1.7 mm; 42, D. pusztensis (Erdös & Novicky), 1.4 mm.

FIGURES 61 – 71. Diglyphus spp., head & antenna in lateral view: 61, D. minoeus (Walker) female; 62, D. minoeus male; 63, D. pachyneurus Graham female; 64, D. pachyneurus male; 65, D. poppoea Walker female; 66, D. poppoea male; 67, D. pusztensis (Erdös & Novicky) female; 68, D. pusztensis male; 69, D. sabulosus Erdös female; 70, D. sabulosus male; 71, D. subplanus (Erdös) female.

FIGURES 72 – 77. 72 – 73, Diglyphus spp., right fore wing, females: 72, D. chabrias (Walker); 73, D. isaea (Walker). 74 – 77, Diglyphus spp., right wing-pair, males: 74, D. anadolucus Doganlar; 75, D. crassinervis Erdös; 76, D. pachyneurus Graham; 77, D. clematidis sp. nov.