Revision of the subgenus Omophron (s. str.) Latreille, 1802 (Coleoptera: Carabidae Omophron) of the Afrotropical region Author Anichtchenko, Alexander 0000-0001-8512-830X alexander.anishchenko@du.lv Author Valainis, Uldis text Zootaxa 2023 2023-05-11 5284 2 201 246 http://dx.doi.org/10.11646/zootaxa.5284.2.1 journal article 10.11646/zootaxa.5284.2.1 803e0243-b088-4d6e-adbe-c682f3116af4 1175-5326 7923218 2A865757-B6B4-48CD-A9AD-334F7E7B508B Key to Afrotropical species of the subgenus Omophron Latreille, 1802 1 Antennal scape bisetose at apex, antennomeres III and IV with setae along lateral margin; pronotum verrucate. “ africanum ” species group........................................................................................ 2 - Antennal scape unisetose at apex, antennomeres III and IV without setae along lateral margin; pronotum punctate......... 4 2 Elytral epipleura smooth; pronotum with sides broadly and evenly rounded. Elytra with striae 1–3 shallow on the disc and weakly punctate, intervals 1–5 completely flat and shiny.......................... africanum Rousseau, 1908 ( Fig. 1 ) - Elytral epipleura faintly punctate; pronotum with sides almost straight, evenly rounded only near the anterior angles....... 3 3 Elytra with intervals 1–4 almost as convex on the disc as on more lateral intervals, microreticulation on the sutural interval (interval I) almost isodiametric; pronotum with long rugae on the disc; apex of aedeagus truncate, apical lamella relatively long ( Fig. 6 )........................................................................... pallidum sp. n. ( Fig. 3 ) - Elytra with intervals 1–4 clearly flatter on the disc than on more lateral intervals; microreticulation on the sutural interval more transverse; pronotum with elongated verricate pits on the disc; apex of aedeagus rounded, apical lamella short ( Fig. 5 )............................................................................ distinctum Bänninger, 1918 ( Fig. 2 ) 4 Last visible ventrite (VI) roughly and coarsely punctate throughout, or at least laterally, ventrites IV and V with transverse row of large punctures and a deep sulcus; Elytral epipleura punctate, either densely densely or at least with one or two punctures; disc of pronotum with a more or less visible transverse depression; maxillary palpi slender, with preapical palpomere slightly narrower than apical, apical palpomere fusiform with apex acute. “ minutum ” species group.......................... 5 - Last visible ventrite (VI) smooth, ventrites IV and V without punctures and with a weak sulcus; Elytral epipleura smooth; maxillary palpi with preapical palpomere as wide as or wider than apical palpomere, apical palpomere elongate, subparallel, with apex obtuse..................................................................................... 11 5 Clypeus smooth...................................................................................... 6 - Clypeus punctate, with at least a few punctures along posterior edge............................................. 8 6 Elytral epipleura punctate; size small, 3.3–5.1 mm ........................................................... 7 - Elytral epipleura with a single puncture; size large, 6.4 mm ; disc of pronotum flattened, with wide transverse depression, sides with widely explanate borders; head black, without pattern................................. schuelei sp. n. ( Fig. 22 ) 7 Very small, 3.3–3.5 mm ; head, elytra, and pronotum brown, without metallic color; clypeo-frontal suture indistinct; elytra with striae on the disc of elytra shallow and with fine punctuation, intervals 1–7 flat................ secundum sp. n. ( Fig. 18 ) - Larger, 4.8 mm ; head, pronotum, and elytra with metallic pattern; clypeo-frontal suture distinct; elytra with striae on the disc of elytra deep, strongly punctate, intervals convex........................................ mimeticum sp. n. ( Fig. 23 ) 8 All striae of elytra very deep, all intervals equally convex..................................................... 9 - Elytral intervals 1–5th flattened on the disc; pronotum evenly and very densely punctate with punctures minute ................................................................................. clavareaui Rousseau, 1900 ( Fig. 17 ) 9 Elytral epipleura punctate; ventrite VI punctate throughout................................................... 10 - Elytral epipleura almost smooth; ventrite VI punctate laterally only.......................... muellerae sp. n. ( Fig. 21 ) 10 Punctures on the disc of pronotum small and sparse, twice as dense on the sides; pronotum and head reddish brown, with metallic tinge only faintly present ................................................ minutum Dejean, 1831 ( Fig. 7 ) - Pronotum uniformly, very coarsely and densely punctate; pronotum and head with bright green or bluish tinge......................................................................................... riedeli Emden, 1932 ( Fig. 8 ) 11 Metacoxa with one setiferous pore bearing a long seta and 2–13 punctures without setae. “ severini ” species group....... 12 - Metacoxa with two setiferous pores bearing long setae, additional punctures only in species from Madagascar . “ capense ” species group....................................................................................... 15 12 Clypeus with a furrow near anterior margin................................................................ 13 - Clypeus without any trace of a furrow near anterior margin, smooth; elytral striae shallow................................................................................................ capicola Chaudoir, 1868 ( Figs. 86–87 ) 13 Metacoxa with 11–13 punctures and one setiferous pore bearing a long seta...................................... 14 - Metacoxa smooth, or with 1–2 asymetrically placed punctures, and one setiferous pore bearing a long seta; endophallus with two large groups of long spines ( Figs. 84–85 )...................... oligoxanthum Kuntzen, 1919 stat. n. (Figs. 62–64) 14 Elytra elongate and flattened, with intervals clearly flattened on the disc; pronotum with wide yellow band along anterior margin; endophallus with two groups of spines ( Figs. 74–75 ) ....................... severini Dupuis, 1911 ( Figs. 76–78 ) - Elytra rounded and convex, intervals moderately convex on the disc; green pattern of pronotum extended to anterior margin; endophallus with one, preapical group of spines ( Fig. 92 )................................... occultum sp. n. ( Fig. 88 ) 15 Species from Madagascar .............................................................................. 16 - Species from mainland Africa.......................................................................... 17 16 Elytra with 14 complete striae, stria 11 very short and represented by few punctures; endophallus with large patch of relatively long spines ....................................................... madagascariensis Chaudoir, 1850 ( Fig. 52 ) - Elytra with 15 complete striae; endophallus with small patch of relatively short spines..... amandae Valainis, 2010 ( Fig. 53 ) 17 Apex of aedeagus narrowly pointed ( Fig. 65 ).............................. picturatum Boheman, 1860 (Figs. 59–61) - Apex of aedeagus broad and truncate ( Figs. 39–45 ). O. capense and its subspecies................................ 18 18 Aedeagus with apex moderately curved ventrally ( Figs. 39–42 )................................................ 19 - Aedeagus with apex strongly curved ventrally ( Figs. 43–45 ).................................................. 20 19 Male front tarsomere 1 in males moderately dilated ( Fig. 93 ); body more rounded.................................................................................................... capense capense Gory, 1833 ( Figs. 27–30 ) - Male front tarsomere 1 strongly dilated ( Fig. 97 ); body elongate....................... capense kmecoi ssp. n. ( Fig. 33 ) 20 Elytral striae punctured to apices, punctures in apical third fine but visible; dorsal dark areas with green tinge........... 21 - Elytral striae smooth in apical third; yellow pattern on elytra reduced, dorsal dark areas with purple tinge......................................................................................... capense isolatum ssp. n. ( Fig. 34 ) 21 Body larger and slightly elongate; apex of aedeagus broader as in Fig. 43 ...................................................................................................... capense congoense Deleve, 1924 stat. n. ( Fig. 31 ) - Body smaller and more rounded, yellow pattern more extended; apex of aedeagus narrower as in Fig. 44 ......................................................................................... capense pumilum ssp. n. ( Fig. 32 )