Diglyphus pachyneurus Graham

Figs 25, 26, 39, 63, 64, 76, 78

Diglyphus pachyneurus Graham, 1963: 176, holotype male in Oxford, not examined.

Diagnosis. Scape completely dark (Figs 63, 64); legs (Fig. 39): femora dark and metallic with apical ¼–⅓ white; tibiae white; fore wing speculum with a few scattered setae (as in Fig. 72); male wings with yellow veins that are distinctly enlarged (Fig. 76); male gaster completely dark and metallic (Fig. 26).

Material. Denmark: 1♀ (BMNH) . France: 5♀ (BMNH) . Iraq: 5♀ 2♂ (BMNH) . Sweden: 6♀ 3♂ (BMNH) .

Distribution. Croatia (Bouček 1977), Denmark *, France *, Germany (Vidal 2001), Italy (Bouček & Askew 1968), Moldova (Bouček 1965), Montenegro (Bouček 1977), Netherlands (Gijswijt 2003), Iraq *, Peoples' Republic of China (Sha et al. 2007), Russia (Yefremova 2002), Sweden (Graham 1963), Turkey (Gencer 2009), United Kingdom (Graham 1963), Yemen (Yefremova 2007).

Remarks. Bouček & Askew (1968) referred to the biology of D. pachyneurus as “found on sand-dunes in Britain”. The specimens from Denmark and Sweden examined here are all from areas with sand-dunes so this appears to be the favoured habitat for this species.