Synopsis of the new subtribe Scatimina (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini), with descriptions of twelve new genera and review of Genieridium, new genus Author Vaz-De-Mello, Fernando Z. text Zootaxa 2008 2008-12-05 1955 1 75 journal article 1175­5334 5. Feeridium new genus Diagnosis: Size large ( 4.5–5.2 mm ), very elongated ( Fig. 20 ). Mesofemora and metafemora very strong and rounded ( Fig. 54 ), eyes extremely large dorsally, interocular width narrower than twice eye width ( Fig. 52 ). Eytral interstriae sparsely punctate, with uniseriate setae only at apex and sides. Description: Length 4.5–5.2 mm , body very elongated, with subparallel sides ( Fig. 20 ); color brown, opaque, without metallic sheen. Clypeus with two strong teeth, separated by narrow U-shaped emargination, clypeus laterally and gena continuously rounded. Clypeofrontal and clypeogenal sutures not discernible. Eyes, in dorsal view, enormous, as long as wide; interocular width less than 1.5 times eye width ( Fig. 52 ). Pronotum lacking anterior and posterior beads, lateral pronotal callosity rounded and darkened; disc covered by simple strong punctures, glabrous; separated of hypomeron by row of punctures, without carina. Hypomeron without lateral longitudinal carina; mesoepimeron anterior transverse carina strong and distinct; metasternal disc with minute impressed punctures. Elytral interstriae flat, with unorganized punctures on disc, sparse uniseriate setae present only apically and laterally; striae slightly deeper posteriorly, not widened. Pseudoepipleura gradually narrowed posteriorly, with slight longitudinal fold near metacoxa, completely glabrous. Protibia with three very strong teeth, distributed along apical three-fifths, basally not denticulate, lacking ventral scale-like setae. Mesofemora wider than third of their length, metafemora about as wide as half of their length ( Fig. 54 ); mesotibiae apically wider than one of their length, metatibiae apically quite as wide as half of their length ( Fig. 54 ). Metatarsi with basal tarsomere as long as 1.5 times the following tarsomere. Parameres as long as two-thirds of phallobase, flattened and truncate, apically divergent ( Fig. 53 ). Internal sac with pseudoflagellum relativelly short and bent at mid-length, rounded by flat large accessory lamella. Coxites triangular, very sclerotized, and pointed. Spermateca C-shaped, bulbous basally (narrower at duct insertion), drastically narrowed apically, with duct short and not sclerotized. Sexual dimorphism: Males have central portion of last abdominal sternite flat to slightly concave, pygidium more elongated, and a protibial apicomesal tooth, ventrally directed. Type species: Feeridium woodruffi new species (monotypy). Etymology: After François Feer, who collected and sent me the first specimens I saw of this genus. Gen- der neutral. Composition: The new genus currently includes solely the new species. Distribution: French Guyana and Amazonian Brazil . Known from Humid Guiana, Roraima and Varzea provinces of the Amazonian subregion. Remarks: The condition of the parameres and pseudepipleura relates this genus to Degallieridium . However, it superficially resembles both Genieridium and Nunoidium , from which it can be immediately distinguished by the condition of pseudepipleuron, head, and elytra. Synapomorphies defining this genus include lack of row-organized elytral disc punctation, absence of pronotal-hypomeral carina, lack of sexual differences in protarsi, size of eyes and psammophiliform development of legs.