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 Haroldiataenius hintoni (Saylor) ( Fig. 2 , 15, 18, 24) Ataenius hintoni Saylor 1933: 159 . Haroldiataenius ( Sayloria ) hintoni – Chalumeau 1981: 140 , fig. 4, 5; Dellacasa 1988: 275 (catalogue). Haroldiataenius hintoni – Galante et al. 2003: 288 ; Stebnicka 2007: 585 . Diagnosis . Clypeal margin rounded each side of middle, surface finely punctate. Pronotal punctures coarse, dense across entire surface, separated by less than their diameter. Pronotum with basal marginal line narrow, weakly defined. Lateral margins of pronotum and elytron with short fringe of setae. Haroldiataenius hintoni is known from Mexico , Guatemala , and Honduras , where it appears to live in association with leaf cutter ants. Description. Length 3.0-3.3 mm. Dark reddish brown, shining ( Fig. 2 , 15). Clypeal margin finely reflexed, rounded each side of deep median emargination; genae small, right-angled, with clump of setae; surface narrowly concave above emargination and finely, transversely rugulose up to median convexity, vertex with fine punctures. Pronotum convex, base without marginal line, lateral edge crenate-fimbriate, setae short; surface evenly, coarsely punctate throughout, punctures almost contiguous. Elytron convex, humerus finely dentate, striae strong, punctate-crenate; intervals moderately convex with fine scattered punctures; elytral margin with fringe of very short setae. Metasternum smooth, nearly impunctate from side to side, intercoxal carina fine, short; abdominal sternites with in- conspicuous fluting along sutures and smooth medially, slightly shallowly wrinkled laterally; sternite 5 weakly and weakly eroded disc of py- gidium with row of moderate punctures and fine setae. All femora smooth, shining; meso- and metafemur short, without posterior lines; metatibia apically with short setae, without accessory spine; basal tarsomere of metatarsus shorter than upper tibial spur and shorter than following three tarsomeres combined. Epipharynx as in Fig. 18. Male genitalia with shortened, tri- angular parameres ( Fig. 24 ). Type data . Holotype (not examined): “Tejupilco VII. 1932 Mex. D.F. Alt. 3960 f”, “H.E. Hinton coll.”, “ At. hintoni Saylor ”, in CASC . Specimens examined (45). Guatemala – (2 ex) Jalapa , Laguna del Moyo, 12. VI .1982 , with Atta sp. J. Baster ( CEUA ). Honduras – (1 ex) El Paraiso, 8.VII.1999 , M. Cruz ( CEUA ). Mexico – (8 ex) Chiapas , Cinco Cerros, 860 m , 31. V .1990 , Figures 12-15. Haroldiataenius spp., dorsal habitus. 12) H.& A. Howden ( CMNO ); (6 ex) Chiapas , El H. mariarum . 13) H. saramari . 14) H. limbatus . 15) H. hintoni . Aguacero 16 km W Ocozocoautla 600 m , 5. VI .1998 , H. & A. Howden ( CMNO ); (17 ex) Chiapas , Puente Macuilapa , Rt. 90 near Los Amates , 22. V .1964 , R . Woodruff , blacklight trap ( CMNO ); (1 ex) Chiapas , Mpio Cintalapa 5 mi N Nvo Tenochtitlan , 31.VIII.1991 , Kovarik & Philips ( PESC ); (3 ex) Jalisco , 28 km S Chamela , 16.VII.1987 , light trap , R . Turnbow ; 28.4 km S of Chamela , 16.VII.1987 , R . Turnbow ( ISEA , RHTC ); (1 ex) Jalisco , km 59, Hwy 200, Chamela Bio. Station , N19 o 29.9', W105 o 2.6', 105m , 27-28. VI .2006 , D. Brzoska ( FSCA ); (3 ex) Sonora , 17 km SW Montezuma , 22.VII.1980 , S. McCleve ; Sonora , Hwy 16, 20 mi E Rio Yaqui , 26-27.VII.1987 , S. McCleve ( PKLC ); (4 ex) Sonora , 15 km NE Alamos , 30.X.1972 , K. Stephan ( FSCA ) . Remarks. Haroldiataenius hintoni has been previously recorded from Sonora (Alamos) and Tamaulipas (Magiscatzin), Mexico by Chalumeau (1981) ; from Honduras (no further data) by Galante et al. (2003) ; and from Guatemala (no further data) by Stebnicka (2007) . Specimens were found in detritus remnants in the nest of Atta sexdens and collected with light traps. The coarse, dense pronotal punctation readily distinguishes H. hintoni from all other members of the genus.