S. Mahunka szerk.: Folia Entomologica Hungarica 62. (Budapest, 2001)

5 (6) Body without metallic luster. Tegulae, lateral lobes of mesonotum red. Middle lobes of mesonotum and pronotum partly red. Propleuron black. 10.0 mm. D. kurodakensis sp. n. 6 (5) Body with strong greenish blue or bluish black iridescence. 7 (8) Scutellum with strong violet luster. Pronotum, propleuron, tegulae, lateral lobes of mesonotum, two little spots at the inner angles of the middle lobes red. Sawsheath similar to that of D. lewisii Cameron, 4-6 serrulae in Haris 2000, Fig. 5. 6.5-8.0 mm. D. hordei Rohwer 8 (7) Scutellum without vilolet luster. Pronotum, propleuron, tegulae, lateral lobes of mesonotum red. 9 (10) Middle lobes of mesonotum vary from black to almost entirely red. Sawsheath and 4-6 serrulae in Haris 2000, Figs 6 and 59. 6.5-8.0 mm. D. lewisii Cameron 10 (9) Middle lobes of mesonotum black. Sawsheath similar to that of D. lewisii Cameron although more widely curved. 6.5-8.0 mm. D. coreanus Takeuchi 11 (4) Pronotum black. Lateral lobes of mesonotum red. Middle lobes marked with red alongside their outer margin. Tegulae and the other parts of the thorax black. Sawsheath similar to that of D. ephippiatus Smith. Serrulae 4-6 in Haris 2000, Fig. 11. 10.0-11.0 mm. D. yokohamensis Rohwer 12 (1) Body frequently coloured with red (only D. gessneri Ed. André and the dark colour variation of Dolerus subfasciatus Smith is black). Abdominal tergites without transverse sculpture (except Dolerus gessneri Ed. André). Cerci long, apical setae reach over the apex of the sawsheath. Number of serrulae: 9-15. 13 (16) Body entirely black, reddish or reddish yellow markings may occur only on the legs. 14 (15) Abdominal tergites with transverse surface sculpture. Propleuron with craterlike punctures. Sawsheath in Haris 2000, Fig. 94. 9.0-11.0 mm. D. gessneri Ed. André 15 (14) Abdominal tergites smooth and shining, propleuron without crater-like punctures. Serrulae 4-6 and sawsheath in Haris 2000, Figs 36 and 98. Dark colour variation. 9.0-10.5 mm. D. subfasciatus Smith 16 (13) Abdomen more or less red. 17 (24) Legs more or less red, at least the first knees. Mesopleuron with crater-like punctures.