A revision of the genus Haroldiataenius Chalumeau (Scarabaeidae: Aphodiinae: Eupariini) Author Stebnicka, Z. Teresa Author Skelley, Paul E. text Insecta Mundi 2009 2009-01-30 2009 62 1 16 journal article 10.5281/zenodo.4531515 1942-1354 4531515 Genus HAROLDIATAENIUS Chalumeau Haroldiataenius Chalumeau 1981: 137 . Type species Ataenius mariarum Bates, 1887 , by original designation. – Dellacasa 1988: 339 (catalogue). Sayloria Chalumeau 1981: 138 [as subgenus of Haroldiataenius ]. Type species Ataenius hintoni Saylor, 1933 , by original designation. New synonymy . Aphotaenius : Chalumeau 1983: 1-3 (captions to fig. 1-6 erroneously labeled as Aphotaenius ). Diagnosis. Body robust, psammodiiform, oval to weakly elongate, strongly convex, length 3.0-5.0 mm. Clypeal anterior face widely deplanate within median emargination, clypeal surface transversely rugulose or smooth; anterior clypeal margin evenly rounded or dentate either side of emargination. Elytra ovoid, strongly convex; margins fringed with fine setae, often short, occasionally indistinct; humerus with carina between 7th elytral interval and epipleural angle, shoulders slightly flattened. Abdominal sternites finely fluted along sutures; lateral sternites 4-5 and disc of pygidium with row of blunted setae. Mesotibia greatly widened at apex; apical margin usually with strong lateral accessory spine, with weak or without median accessory spine. Metatibia more or less dilated apically, median or lateral accessory spine present or absent; tarsi shorter than tibiae. External sexual dimorphism difficult to recognize, usually disc of pygidium in male longer than in female. Male genitalia small, lightly sclerotized. Remarks . Some members of Haroldiataenius are associated with leaf-cutter ants ( Atta spp.) ( Stebnicka 2007 ) and possibly other ants. Other members may be detritivores in sandy soils, which may opportunistically use detritus around ant nests. Distribution. Southern USA , Mexico , Guatemala , Honduras , Panama .