S. Mahunka szerk.: Folia Entomologica Hungarica 61. (Budapest, 2000)
6 (7) Scutellum with strong violet luster. Body shining greenish-blue. Pronotum, propleuron, tegulae, lateral lobes of mesonotum red. Two further little spots on the inner angles of the fore lobes also red. Head densely and roughly punctured with shining interspaces on the postocellar region. Clypeus deeply emarginated to the half of its total length. Head behind the eyes parallel. Mesonotum shining, although densely punctured. Sawsheath as in Fig. 59. 4th-6th serrulae in Fig. 5. 6.5-7.5 mm. - Japan. Insect pest of Hordeum hordei Rohwer 7 (6) Scutellum without any violet luster, shining greenish-blue as the major part of the body 8 (9) Apical setae of sawsheath more elongated (Fig. 59). Clypeus emarginated to one-third of its total length. Pronotum tegulae, lateral lobes of mesonotum red. Colour of fore mesonotal lobes vary from black to almost entirely red. Body with shining greenish-blue iridescence. Head densely and deeply punctured. Mesonotum sporadically punctured, shining. 4th—6th serrulae in Fig. 6. 6.5-7.5 mm. - Sporadic. Japan, Korea, Russia lewisii Cameron 9 (8) Apical setae of sawsheath similar to those of D. lewisii Cameron although more widely curved. Clypeus slightly emarginated to a depth of one-fourth of its total length. Pronotum, tegulae, lateral lobes of mesonotum red. Fore lobes are black. Body with shining greenish-blue iridescence. Temples and postocellar area sporadically punctured with shining interspaces. Mesonotum moderately punctured. Wings hyaline. 6.5-7.5 mm. - Sporadic. Korea, Japan coreanus Takeuchi 10 (5) Body without strong greenish-blue iridescence 11 (18) Lateral lobes of mesonotum red 12(13) Mesopleuron red. Apices of the setae of sawsheath approaching each other, so the distance between them smaller than the greatest breadth of sawsheath (Fig. 60). Pronotum, mesonotum, tegulae and mesopleuron red. Clypeus deeply emarginated. Head shining, deeply punctured. Pronotum with dense and shallow, fore lobes of mesonotum with moderately dense and lateral lobes with sporadic puncture. Abdomen with transverse surface sculpture. 4th—6th serrulae in Fig. 7. 10.0-11.0 mm. - Sporadic. Japan, Sakhalin, Korea ephippiatus Smith 13(12) Mesopleuron black 14 (15) Apices of the setae of sawsheath do not approach each other, so the distance between them larger than the greatest breadth of the sawsheath (Fig. 61). Variable in colour. Pronotum red at most its margin black. Sometimes the postscutellum also red. In most specimens, the mesonotum wholly red, sometimes only the lateral lobes red. Clypeus deeply and roundly emarginated to a depth of half its total length. Head densely punctured, matt, lateral sides behind the eyes converge. Mesonotum moderately and densely punctured. Wings slightly infuscate. 4th-6th serrulae in Fig. 8. 7.0-8.0 mm. - Sporadic. Europe sanguinicollis (Klug)
