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

7 (2) Abdomen nearly always more or less red (except D. laevigatus Hellén, Dolerus scoticus Cameron, Dolerus pachycerus Hartig, Dolerus gessneri Ed. André, Dolerus variator Enslin, Dolerus sachalinensis Takeuchi and D. subfasciatus Smith). Cerci long with long apical hairs. Number of serrulae: 9-15. 8 (9) Abdomen more or less covered with transverse sculpture. Mesopleuron with crater-like punctures (punctures larger than abdominal spiracles) Table D 9 (8) Abdomen smooth and shining 10 (11) Legs more or less red, at least the first knees. Mesopleuron with crater-like punctures Table E 11 (10) Legs entirely black. Mesopleuron roughly punctured but without crater-like punctures Table F 12(1) Males 13 (14) Abdomen nearly always black. Thorax sometimes coloured with dark red and/or legs with yellow. Mesopleuron roughly punctured but without craterlike punctures Table G 14 (13) Abdomen more or less red, if black, mesopleuron with crater-like punctures (except D. harukawai Waterston and few rarely occurring melanic forms of D. madidus (Klug) and D. ferrugatus Lepeletier which has black abdomen and rough but not crater-like punctures, in this cases, check penis valve) Table H Table A 1 (20) Thorax entirely black 2 (3) Hind femur entirely red and hind tibia entirely or almost entirely black. Head with well-defined occipital furrows and often contracted behind the eyes. Punctation of thorax and form of sawsheath very close to those of D. puncticollis Thomson. 8.0-9.0 mm. Sawsheath in Fig. 53, 4th-6th serrulae in Fig 1. - Rare montaneous species. Europe liogaster C. G. Thomson 3 (4) Hind femur more or less black 4 (7 Hind femur almost entirely black only its apex reddish-yellow. First and second legs also black only their knees reddish-yellow 5 (6) Clypeus emarginated to one-third of its total length. Occipital furrows are deep, well marked. Antenna with 8th segment about 3.3 times as long as its basal breadth. Body black densely covered with silvery pubescence. Head behind the eyes parallel. The base of fore and middle tibiae marked with narrow reddishyellow band which is relatively wider on the hind tibia. Inner teeth of claws minute. Sawsheath in Fig. 54. 8.0 mm. - Rare species. Known only from Austria, Hungary, Italy and Ukraine vernalis Ermolenko 6 (5) Clypeus scarcely emarginated to a depth only about one-fifth of the clypeal length. Occipital furrows not clearly marked above. Antenna with 8th segment 5 times as long as its basal breadth. Head subparallel behind the eyes. Punctation coarse with several large interspaces on temples and notably a large spot (as large as 2 or 3 ocelli) adjoining each of the lateral ocelli. Large sparsely punctuate shining areas occur each side of the middle line of the fore lobes.