Anthaxia (Capanthaxia) sulcicollis Obenberger, 1928

Bílý, Svatopluk, 2019, Subgeneric classification of the genus Anthaxia Eschscholtz, 1829 (Coleoptera: Buprestidae: Anthaxiini), Zootaxa 4568 (2), pp. 261-278 : 274

Anthaxia (Capanthaxia) sulcicollis Obenberger, 1928 species-group

DEFINITION OF THE SPECIES- GROUP. Medium-sized (4.0–7.0 mm), elongate, subcylindrical, asetose species; dorsal surface black, black-green, green or bicolorous (golden-green with red-orange lateral pronotal margins and laterosternites)— Figs. 23, 24 ; ventral surface usually black or black-green.

Head small, as wide as anterior pronotal margin, frons flat or weakly convex, vertex twice as wide as width of eye; antennae short (male) or very short (female) reaching midlength or anterior third of lateral pronotal margins when laid alongside; sculpture of frons consisting of very small, dense oval cells without central grains.

Pronotum transverse, about 1.8 times as wide as long, weakly convex, with rather deep, medial groove reaching both anterior and posterior margins ( Figs. 23, 24 , 54 ); lateral margins weakly rounded, rather strongly widened anteriorly, maximum width at anterior fourth; lateroposterior depressions wide, deep, reaching anteriorly pronotal midlength; sculpture consisting of fine, transverse rugae or transversely arranged, polygonal cells on disc and small, rounded cells without central grains along lateral margins ( Fig. 54 ). Scutellum very small, triangular, as long as wide.

Elytra subcylindrical, regularly convex, only weakly tapering posteriorly, about 3 times as long as wide, not completely covering pygidium ( Figs. 23, 24 ); apices widely, separately rounded, without lateral serrations; humeral callosities small, basal, transverse depression very shallow, not reaching scutellum; sculpture consisting of fine, transverse rugae ( Figs. 23, 24 ).

Legs relatively short, male metatibiae straight, without inner serrations; tarsomeres 3 and 4 widened with large, adhesive pads ( Figs. 23, 24 ); anal ventrite of both sexes simply rounded apically.

Aedeagus very short, regularly spindle-shaped, median lobe without lateral serrations.

DISTRIBUTION: South Africa (Cape Provinces, Namaqualand, Natal).

SPECIES INCLUDED: Anthaxia (Capanthaxia) sexualis Obenberger, 1928 , A. (C.) sulcicollis Obenberger, 1928 (both species were placed in the subgenus Anthaxia s. str. by Bellamy (2008) and Bílý (1997).

Figures

FIGURES 13–24. Anthaxia, dorsal aspect. 13—Anthaxia (Melanthaxia) kochi Obenberger, male, 6.5 mm; 14- A. (Richteraxia) angustipennis (Klug), male, 6.1 mm; 15—A. (R.) congolana Kerremans, male, 11.0 mm; 16—A. (R.) marginifera metallescens Bílý, male, 9.1 mm; 17—A. (Merocratus) miranda Deyrolle, female, 8.0 mm; 18—A. (Thailandica.) rondoni Baudon, 5.5 mm; 19—A. (Capanthaxia) capensis Kerremans, lectotype, 3.9 mm; 20—the same, male, blue form, 4.5 mm; 21—A. (Cap.) hilaris Gory, female, 4.8 mm; 22—A. (Cap.) aterrima Kerremans, male, 7.1 mm; 23—A. (Cap.) sulcicollis Obenberger, male, 4.0 mm; 24—the same, female, 5.8 mm.

FIGURES 40–54. Anthaxia, pronotal sculpture (not in scale). 40—Anthaxia (Anthaxia) fulgurans (Schrank); 41—A. (A.) salicis salicis (Fabricius); 42—A. (A.) manca (Fabricius); 43—A. (Melanthaxia) nigrojubata nigrojubata Roubal; 44—A. (Cratomerus) hungarica hungarica (Scopoli); 45—A. (Haplanthaxia) cichorii (Olivier); 46—A. (H.) kneuckeri zabranskyi Bílý; 47—A. (H.) pumila (Klug); 48—A. (Richteraxia) angustipennis (Klug); 49—A. (R.) marginifera metallescens Bílý; 50— A. (Merocratus) tamdaoensis Bílý; 51—A. (Thailandia) rondoni Baudon; 52—A. (Capanthaxia) capensis Kerremans; 53—A. (Cap.) aterrima Kerremans; 54—A. (Cap.) sulcicollis Obenberger.