S. Mahunka szerk.: Folia Entomologica Hungarica 52. (Budapest, 1992)

=tevorensis Obenberger, 1922, Arch.Natg. 88(A):66 =ludekingi Obenberger, 1922, Arch.Natg. 88(A):66 ssp. ignicauda Deyrolle, 1864, Ann.Soc.Ent.Belg. 8:42 =punctipennis Deyrolle, 1864, Ann.Soc.Ent.Belg. 8:44 =aereipennis Kirsch, 1885, BerLEnt.Zschr. 29:113 = cupriventris Kerremans, 1895, Ann.Soc.Ent.Belg. 39:200 = cyaneomicans Kerremans, 1903, GenJns. 12:87 = azurea Kerremans, 1910, Mon.Bupr.4, 6:191 =halmaheirae Obenberger, 1922, Arch.Natg. 88(A):67 Cyphogestra nigripennis Deyrolle, 1864, Ann.Soc.Ent.Belg. 8:43 Cyphogastra tuberculata Thomson, 1878, Typi Bupr.:22 Cyphogastra carbonaria Théry, 1908, Ann.Soc.Ent.Belg. 52:81 Key to the identification of species of the "Suturalis-circle" A(B) Elytra strongly caudate; or elytra with longitudinal sulciform depressions in posterior half; or pronotal lateroposterior depression with broad, contiguous, finely and densely punctulated bottom surface; or elytra green with concolorous suture; or pronotum contrastly darker than elytra other groups of Cyphogastra Deyrolle s.str. B(A) Elytra not or only slightly caudate; elytra withouth depressions behind mid-length; lateroposterior depressions of pronotum without distinctively punctured bottom surfaces, or these are small, divided into anterolateral and posterior parts by coarsely punctured elevation; elytra black or suture bluish; pronotum not darker then elytra Suturalis-circle 1(2) Abdominal plaque acute-angled in profile, its height equal to distance from hind margin of second sternite, ventral line concave C. tuberculata Thomson 2(1) Abdominal plaque obtuse-angled or its height less than distance from posterior margin of 2nd sternite; ventral line straight or convex in profile 3(6) Dorsal surface (except elytral tips) nearly unicolorous or elytra green 4(5) Ventral side blackish C. carbonaria Théry 5(4) Ventral side green or coppery (C. suturalis Fabricius) 5a(5b) Proepisterna with smooth, elevated reliefs; pronotal depressions without distinctively punctured surfaces; tarsi brightly metallic C. suturalis suturalis (Fabricius) 5b(5a) Proepisterna uniformly, densely and finely punctulated; densely and finely punctured bottom surfaces in pronotal foveae well developed; tarsi blackish or bronzed, with but slight metallic lustre C. suturalis ignicauda Deyrolle 6(3) Elytra bluish-black, sharply contrasting with bright greenish-blue pronotum C. nigripennis Deyrolle Relatively unadvanced development of pronotal foveae, not caudate elytra without depressions, and simple pattern of colouration suggest, that Suturalis - circle is one of the most ancient groups of Cyphogastra Deyrolle - the common ancestor of the nominative subgenus belonged probably here. This ancestral species - evolved from the "proto-Cyphogastra" as described in the first paper of the present series (Holynski 1992) might have been a medium-sized (ca 30 mm long) beetle with distinctly elevated but not very high abdominal plaque, rather coarse elytral sculpture, distinctively punctured bottom spaces in pronotal foveae feebly developed, parallel or slightly convergent pronotal sides without accentuated anterior angles, and not or very slightly caudate elytra with truncate apex. It was apparently polymorphic in dorsal colouration, with brightly metallic (green to coppery) and black variants (in the former the elytral suture was either conco-