S. Mahunka szerk.: Folia Entomologica Hungarica 34/1. (Budapest, 1981)
1. Genua: Paraeorythoderus Was mann, 1918 Raised suture of elytra acute angularly connected on basis with the third rib. Red, shiny. Basal knob of pronotum short, furrow in that distinct only in last third. Short rib between suture and second rib of elytra reaching anterior third. 3 mm. - RSA (Transvaal, Oranje) marshalli Brouns, 1900 Raised suture of elytra connected with third rib by a straight line. Basal knob of pronotum longer, furrow in that occupying hind half of pronotal length. Short rib (in apical half of elytra) between suture and second rib reaching only the middle of elytra (Fig. 52). Red shiny. 3 mm. - RSA (.South Africa), SWA -Namibia casperi_ Kolbe, 1909 m. Tribe: Rhyparini Until now only one genus has been known from South Africa. It is likely that a second African genus (Rhypanie) will also be found. Key to genera 1 (2) Pronotum with six ribs (Fig. 4), disc of elytra with four ribs. Scutellum covered (genus: Rhyp arus Westwood, 1843 ) 2 (1) Pronotum with Öve ribs, elytra with rows of punctures, intervals 1, 3, 5 and 8 raised, others flat. Scutellum visible. Head vertical, apex of clypeus turned downward. Eyes not visible from above 1. Genus: Notocaulus Quedenfeldt, 1884 1. Genus: Notocaulus Quedenfeldt, 1884 1 (2) Surface between outer discal rib and lateral rib of pronotum smooth, oily, only with a tew very fine punctures. Lateral margin visible from above, parallel with lateral rib. Even-number intervals of elytra flat (Fig. 55). 3-3.5 mm. - RSA (Zululand) nigroplceus Quedenfeldt, 1884 2 (1) Surface between outer discal rib and lateral rib everywhere covered with big round punctures, lateral margins not visible from above (Fig. 54). 3 (4) Even-number intervals of elytra carinated but lower than others. Smooth stripe along the middle of dorsal intervals not sharply limited from neighbouring rows of punctures. 4 mm. - RSA (South Africa) sculpturatus Boheman, 1857 4 (3) All intervals of ribs flat, very densely, finely punctate, ribs obtuse, distinctly narrower than intervals. 4-4.5 mm. - Angola (laticollis Arrow, 1906) IV. Tribe: Psammodiini The species of the tribe are characterized by a strongly convex, granulate head and by a typical (complete or reduced) pronotal structure. By the typical pronotal structure we mean five transverse ridges and five transverse furrow, the fourth and fifth ridges being interrupted medially by a longitudinal furrow (Fig. 5). This structure may be reduced meaning that on the pronotum there are one or two pairs of lateral impressions, which occur as vestiges of the Impressed lateral parts of the first and third transverse furrows; sometimes the posterior longitudinal furrow Is either present or marked by a row of coarse punctures; coarse punctures can also be concentrated aiong vestiges of some transverse furrows, particularly of the first and third ones. In the literature, there are different opinions concerning 'the status of the particular genera and subgenera. Here we consider the tribe to include 17 genera. Out of them the genera Psammodius Fallén, Rh y ssemus Mulsant and Pleurophorus Mulsant are represented in South Africa. They can be easily separated from one another. It is to note, that out of the genus Psammodius Fallén, there are only species with reduced pronotal structure (subgen. Lelopsammodius Rakovic) in South Africa and a possibility of revealing new species with complete pronotal structure (subgen. Granulopsammodius Rakovic and Psammodius s.str.) from this area is highly improbable. That is why Psammodius Fallén is characterized below as a genus without pronotal ridges in the key to genera. Key to genera 1 (2) Pronotum with five transverse ridges (Fig. 5) (some ridgee may be broken up into 1 (2) 2 (1)
