Aleochara mundana Sharp, 1876

Caron, Edilson, Moussallem, Marcelo & Bortoluzzi, Sidnei, 2019, Revision of Brazilian species of Aleochara Gravenhorst of the subgenus Aleochara (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 4712 (1), pp. 1-33 : 7-8

Aleochara mundana Sharp, 1876

( Figs. 2 , 17–25 , 75 )

Aleochara mundana Sharp 1876: 71 (description, type locality: “ Pará, Tapajós and Ega”), note: Ega is currently known as Tefé, a municipality in Amazonas, Brazil. Duvivier 1883: 100 (catalogue). Feynes 1921: 416 (catalogue, as “species of doubtful systematic position”). Bernhauer & Sheerpeltz 1926: 778 (catalogue). Blackwelder 1944:167 (checklist). Caron et al. 2008: 833 (checklist). Fery 2013: 81 (checklist).

Type material: Syntypes: One male specimen ( Fig. 2 ), deposited in BMNH: (1) “ Aleochara \ mundana \ Amazons Type\ D.S.” [white label, handwritten]; (2) “Type” [circular label, white with red boards, printed in black]; (3) “Amazons\ Tapajós” [circular label, green, handwritten]; (4) “ S. America:\ Brazil ” [white label, printed in black]; (5) “Sharp Coll.\1905-313.” [white label, printed in black]. One female specimen, dissected [abdominal segments VIII–X fixed on acetate plastic card with Canada balsam], deposited in FMNH: (1) “ Aleochara \ mundana \ Amazons 2nd type\ D.S.” [white label, handwritten]; (2) “ S. America:\ Brazil ” [white label, printed in black]; (3) “Sharp Coll.\1905-313.” [white label, printed in black]; (4) “Chicago Nat. Hist. Mus.\ (ex. D. Sharp Colln \ by exchange with\ Brit. Mus. Nat. Hist.)” [white label, printed in black]; (5) “FMNHINS\ 2840591\ FIELD MUSEUM \ Pinned” [white label, printed in black, QR Barcode present] .

Note: Sharp described the species based on five specimens, syntypes.

Additional material: FMNH: Bolivia: One specimen: (1) [Small square green label. There is no writing on this label]; (2) “Mapiri\ Bolivia”; (3) “ mundana Shp. \ Bang Haay(?)\ det. Bernhauer ”; (4) “Chicago NHMus\ M.Bernhauer \ Collection”; (5) “FMNHINS\ 2840588\ FIELD MUSEUM \ Pinned”. Brazil: One specimen: (1) “ mundana Shrp \ Para von\ Slaudinger”; (2) “Chicago NHMus\ M.Bernhauer \ Collection”; (3) “FMNHINS\ 2840589 \ FIELD MUSEUM \ Pinned. One specimen: (1) “ mundana \ Shrp. Para \ von Slaudger”; (2) “Chicago NHMus\ M.Bernhauer \ Collection”; (3) “FMNHINS\ 2840590\ FIELD MUSEUM \ Pinned”. One specimen: (1) “12.893”; (2) “ Brasil.S.Paulo \ Ypiranga\ Dr. Ihering ”; (3) “ lateralis Er. \ det. Bernh ”; (4) “Chicago NHMus\ M.Bernhauer \ Collection”; (5) “FMNHINS\ 2840583\ FIELD MUSEUM \ Pinned”. One specimen: (1) “Maná\ os”; (2) “Amazon\ Roman”; (3) “mars”; (4) “ mundana Shp \ det. Bernhauer \ Schwed R. Mus.”; (5) “Chicago NHMus\ M.Bernhauer \ Collection”; (6) “FMNHINS\ 2840587\ FIELD MUSEUM \ Pinned” . INPA: Brazil: One specimen: (1) “Brasil—AM, Manaus\ Reserva Adolpho Ducke\ 14/VII/2008 \ K. M. Mise (Leg.)”. One specimen: (1) “Brasil— AM, Manaus\ Reserva Adolpho Ducke\ 16/VII/2008 \ K. M. Mise (Leg.)” . MPEG: Brazil: Five specimens: (1) “Brazil Pará \ Serra Norte\ NI FLORESTA\ 2-XI-1985 ”; (2) “Brasil Pará \ J. Dias”; (3) “ MPEG ” .

Diagnosis: Aleochara mundana is very similar to A. auricoma and A. prisca (specimens with head darker than pronotum) but it differs from them by antennae distinctly lighter than head; median lobe of aedeagus with hook-like apical tooth (directed dorsad); and tergum X of female truncate on posterior margin.

Redescription: BL: 6.3 mm. EW: 1.7 mm. Head brown to dark brown, antennae lighter than head; pronotum yellowish to light brown with dark macula on the disc; elytra yellowish to light brown, slightly darker on lateralposterior angles; abdomen brown to dark brown with posterior half of tergum VIII to tergum X yellowish; mouthparts and legs yellowish to light brown. Dorsal surface glossy and covered with thin golden yellowish setae with setigerous pores impressed.

Head: with setigerous punctuation; disc with sparse pubescence directed mediad and anterad. Antennae with antennomere 2 half length of first and slightly narrower than first; 3 longer than 2; 4 transverse; 5–10 similar in shape, each distinctly transverse; 11 twice longer than the previous one, semi-triangular in shape; 1–4 glossy with some long black setae; 5–11 dull and covered by very short white setae, with some long black setae on apex of each antennomere and 11 with long black setae on a transversal circular line in the middle of each antennomere;

Thorax: pronotum with setigerous punctuation; setae directed posterad at the midline of the disc and directed posterad and laterad elsewhere. Mesoventral process truncate. Elytra with setigerous punctation, denser than those on pronotum; setae directed posterad.

Abdomen: distinctly narrowed posteriorly; terga with coarse setigerous punctation, sparse pubescence directed posterad.

Male: tergum VIII wider than long ( Fig. 17 ); posterior margin truncated and not serrate; some setae restricted to posterior margin. Sternum VIII wider than long; posterior margin broadly rounded ( Fig. 18 ). Tergum IX with ventral struts asymmetrical, the left shorter than the right ( Fig. 19 ). Tergum X with anterior margin truncate and posterior margin very slightly emarginate at the middle ( Fig. 19 ). Aedeagus: median lobe elongate and slightly bulbous at base ( Fig. 21 ); apex with hook-like tooth, directed dorsad ( Figs. 22 ).

Female: tergum VIII wider than long; posterior margin truncate ( Fig. 23 ). Sternum VIII wider than long; posterior margin broadly rounded, somewhat pointed at the middle, some short setae restricted to posterior margin ( Fig. 24 ). Tergum IX without ventral struts. Tergum X with anterior and posterior margin truncate ( Fig. 25 ). Spermatheca not found.

Geographical records: Material examined: Bolivia (Mapiri), Brazil (Amazonas: Manaus and Pará: Serra Norte and Tapajós) ( Fig. 75 ).

Natural history: found in dung ( Sharp 1876: 71).

Figures

FIGURE 75. Map of distribution of Brazilian species of Aleochara (Aleochara).

FIGURES 1–7. Dorsal habitus of Brazilian species of Aleochara (Aleochara). (1) A. auricoma; (2) A. mundana; (3) A. prisca; (4) A. bugnioni; (5) A. lustrica; (6) A. chrysorrhoa; (7) A. bonariensis.

FIGURES 17–22. Morphologic structures of A. mundana, male. (17) Tergum VIII, dorsal view; (18) Sternum VIII, ventral view; (19) Terga IX–X, dorsal view; (20) Paramere; (21) Aedeagus, dorsal view; (22) Aedeagus, lateral view.

FIGURES 23–25. Morphologic structures of A. mundana, female. (23) Tergum VIII, dorsal view; (24) Sternum VIII, ventral view; (25) Terga IX–X, dorsal, view.