S. Mahunka szerk.: Folia Entomologica Hungarica 61. (Budapest, 2000)

Scutellum rugose. Mesosternum shining with coarse well defined punctures. Wings hyaline, beyond the stigma very slightly dusky, nervures and stigma dark brown. 7.0-8.0 mm. - Rare. Known only from Sakhalin, Russia sachalinensis Takeuchi 7 (6) Black, abdomen with reddish-brown shadow on the middle segments. Tegulae red. Pronotum densely punctate. Mesonotum shining, moderately punctured. Scutellum roughly punctate. Mesosternum shining, sporadically punctured. Wings slightly infuscate. Pubescence silvery about as long as a diameter of an ocellus. Sawsheath in Fig. 97. 7.0-8.5 mm. - Sporadic, mainly in mountainous locations of N. and C. Europe scoticus Cameron 8 (1) Abdomen coloured with red 9 (32) Long setae on the sides of the sawsheath set more backwards so that, in dorsal aspect, they form with the corresponding setae on the other side of the sawsheath an acute angle (Figs 98-102, 104-105) 10 (13) Thorax including tegula entirely black, sometimes on the pronotum a sligth shade of red visible 11 (12) Wings hyaline, larger species. Sawsheath in Fig. 98,4th-6th serrulae in Fig. 36. - Sporadic. Temperate and boreal regions of E. Asia and N. America subfasciatus Smith 12 (11) Wings dark infuscate, smaller species. (See also D. germanicus (Fabricius) at couplet 30 (31).) Dark colour variation germanicus (Fabricius) 13 (10) Thorax more extensively red or at least the tegula red 14 (15) Thorax black, only tegulae red and cenchri yellow. Head black, slightly narrowed behind eyes. Clypeus emarginated to a third of its total length. Antenna shorter than costa of fore wing. Mesonotum shining, deeply punctured. Posttergite, metascutellum and metanotum nearly impunctate, shining. Legs black, fore and middle tibiae, all knees and basal two-thirds of hind tibiae are red. Abdomen red, the first and the apical three segments black. Wings slightly infuscate. Sawsheath in Fig. 99. 8.0 mm. - Rare. Pakistan kamimurai Togashi 15 (14) Thorax more extensively red 16 (19) Apical part of the abdomen black 17 (18) Apical part of the abdomen from 7th tergite on black. Wings subhyaline. Head black, densely punctured, slightly dilated behind the eyes. Pronotum, tegulae, fore lobes of mesonotum red. Upper edge of mesopleuron with red spots. Mesonotum sporadically punctured but fore lobes somewhat more densely than the lateral lobes. Scutellum with dense punctures. Legs black, fore tibia and apical part of fore femur red. Base of the first tergite and 7th—9th tergites black. Pubescence white and short. Sawsheath in Fig. 100, 4th-6th serrulae in Fig. 37. 10.0 mm. - Rare. prov. "Gan-ssu", China purus Jakovlev 18 (17) Tegula black or red. Wings slightly infuscate. Head and thorax black. Abdomen black, only the middle (2nd-5th) segments are red. Head behind the eyes slightly converging. Fore tibia and base of femur red. Sawsheath in Fig. 101. 5.5-7.0 mm. - Sporadic. Scandinavia and Siberia subarcticus Hellén