Xenopygus excellens (Bernhauer) Bernhauer, 2016

Chatzimanolis, Stylianos & Caron, Edilson, 2016, New species and synonymies in Xenopygus Bernhauer (Coleoptera: Staphylinidae: Staphylinini), Zootaxa 4200 (1), pp. 131-142 : 136-137

Xenopygus excellens (Bernhauer) , new combination

Dysanellus excellens Bernhauer, 1934: 215 .

Xenopygus sancticamillus Caron and Castro, 2016: 75 new synonymy.

Type material. Holotype of Dysanellus (Leptodiastemus) excellens , male, with labels as follow: “Argentina, Tucumán, 15.Oct.1929 ” / “3155” / “H. E. Box. leg.” / “ excellens Brnhr. Typ. un.” / “ Leptodiastemus excellens Brnh. Typus unic” / “Chicago NHMus M. Bernhauer Collection”. Deposited in FMNH. Type materials for X. sancticamillus as indicated in Caron et al. (2016).

Diagnosis. See Caron et al. 2016.

Additional Records. ARGENTINA: Catamarca : Concepción, 750m, 5.xii.1971, L. Herman (1 ♀ AMNH) ; south of La Viña , 28°03’S 65° 35’W, 610m, 21.xi.1995, L. Herman (1 ♀ AMNH) ; Jujuy: Calilegua Nat. Park, Aguas Negras , 18–28.xii. 1987, 500m, gallery forest malaise-FIT, S.&J. Peck (5 ♂, 6 ♀ CNC) ; same data, UTCI 000008400 (1 ♂ UTCI) ; BRAZIL: Rio de Janeiro: Nova Friburgo , Sean Souci. 1000m., 09-– 15.xi.2009, E. Grossi, (5 ♂, 6 ♀ DZUP) ; PARAGUAY: Cazaapá: Hermosa, pro. Sosa family, San Rafael Reserve , 26°19’15’’ S 55°44’55’’W, 90m, 3–6.xii.2000, FIT, Z.H. Falin, barcode labels SM0235899, SM0235896, SM0235891 (3 ♀ SEMC) ; Hermosa, prop. Lopez family, San Rafael Reserve , bank Rio Tebicuary , 26°17’23’’ S 55°43’7’’W, 80m, 1–4.xii.2000, FIT, Z.H. Falin, barcode label SM0235961 (1 ♂ SEMC); Itapúa : San Pedro Mi, San Rafael Reserve , 26°31’24’’S 55°48’18’’W, 90m, 27–30.xi.2000, FIT, Z.H. Falin, barcode labels SM0235775, SM0235773, SM0235774, SM0235777, SM0235772 (1 ♂, 3 ♀ SEMC; 1 ♂ UTCI) ; same locality and collector, 26–30xi.2000, barcode label SM0235871 (1 ♀ SEMC) ; Yatai, prop. Hostettler family, San Rafael Reserve , 26°38’17’’S 55°39’50’’W, 100m, 21–25.xi.2000, FIT, Z.H. Falin, barcode labels SM0277467, SM0564397, SM0564391 (3 ♂ SEMC) ; same locality and collector, 25–28.xi.2000, barcode label SM0261890 (1 ♂ SEMC) .

Remarks. Bernhauer (1934) described D. excellens in the subgenus Leptodiastemus to differentiate between the securiform labial palpi (present in D. bruchi Bernhauer and D. transverserugosus Bernhauer ) and the truncate labial palpi of D. excellens . Leptodiastemus Bernhauer is here placed in synonymy with Xenopygus Bernhauer. However , if the punctatus species group is at some point removed from Xenopygus (see Discussion below) Leptodiastemus would be an appropriate name for these species.