S. Mahunka szerk.: Folia Entomologica Hungarica 34/1. (Budapest, 1981)

Aberrative forms: 1. Pronotum scarcely punctate, intervals of elytra almost or entirely flat, dark pattern weak forma typica 2. Pronotum distinctly punctate, intervals of elytra lightly convex, very finely punctate ab. zborniki Balthasar, 1935 3. Pronotum and elytra distinctly punctate ab. pulchellus Müller, 1941 4. Pronotum smooth, intervals convex ab. convexior Endrődi, 1960 5. Pattern of elytra absent, only suturai interval dark ab. albicans Endrődi, 1960 6. Dark pattern of elytra strikingly strong ab. nero Endrődi, 1960 Group 10: Nialus 1 (4) Black or reddish black species. 2 (3) Small, 3-4 mm. Head with very dense and fine punctures. Elytral striae rather strongly furrowed, on apex somewhat more deeply, but most of them connected and here also punctated. Hind metatarsi somewhat longer than upper thorn of hind tibiae and about as long as next two joints together. - RSA (Transvaal), (= nigritulus Boheman, 1857, paivanus Wolla8ton, 1867, expertus Harold, 1871) nigritus Fabricius, 1801 3 (2) Much bigger, 4.5-6 mm. - Head with sparser and unequal punctures. Elytral striae very fine, on apex scarcely furrowed, punctures smaller than on disc. Hind legs as in preceding species. - RSA (Transvaal) bayeri Endrődi, 1956 4 (1) Surface yellow, elytra with or without a nebulous spot. 5 (6) Very big. Genae not produced, frontal tubercle incised on top. Elytra with a nebulous spot, intervals flat. Hind metatarsi longer than next three joints together. 8 mm. RSA (Cape Province) fingo Petrovitz, 1971 6 (5) Smaller species, mostly 3-5 mm, very rarely 6 mm long. 7 (8) Scutellum narrow, sides on basis parallel. First interval and a nebulous spot on elytra mostly dark. Clypeus yellow or dark with two yellow spots. Hind metatarsi about as long as upper thorn and longer than next two joints together. 3-6 mm. - About in whole of RSA and SWA-Namibia lividus Olivier, 1789 South African races: 1. Populations of RSA. Posterior tibiae mostly longer than tarsi, metatarsus longer than upper thorn (= sublividus Balthasar, 1941, partim) lividus pseudolividus Balthasar, 1941 2. Populations of SWA-Namibia. Posterior tibiae mostly as long as tarsi, metatarsus shorter than upper thorn lividus witboi Petrovitz, 1961 Aberrative forms: 1. Nebulous spot of elytra absent ab. limicola Panzer. 1798 2. Surface almost black, only second interval of elytra yellow ab. anachoreta Fabricius, 1801 8 (7) Scutellum triangular, sides on basis not parallel. Elytra without a nebolous spot, only suturai interval dark. 9 (10) Front distinctly tuberculate. Micropunctures of pronotum mixed with big punctures, especially on sides. Hind metatarsi much longer than upper thorn and as long as next three joints together. 5 mm. - RSA ("South Africa"), (= dolosus Harold, 1871) consimilis Boheman, 1857 10 (9) Front without tubercle, clypeus with a blunt knob. Pronotum uniformly and finely punctate. Hind metatarsi somewhat shorter than upper thorn and somewhat longer than next two joints together. 5 mm. - RSA (Cape Province), (= fallax Harold, 1871, non Mulsant, 1942) alienus Schmidt, 1922 Group 11: Nalicus Yellowish brown, vertex, disc of pronotum and suture of elytra dark. Front without tubercle, clypeal knob distinct, genae rounded. Pronotum micropunctate, mixed with a few big punctures. Elytral striae weak, only on disc punctate. Hind metatarsi as long as upper thorn of hind tibiae and as next three joints together. Apex of middle tibiae in male excised. 7.5 mm. - RSA (Cape Province) veteranus Petrovitz, 1962