Plochionocerus brachypterus Sharp, 1885: 471 Herman, 2001: 3747 Renda Revision of the genus Renda Blackwelder, 1952 (Coleoptera: Staphylinidae: Xantholinini) 2686 Márquez, Juan Zootaxa 2010 2010-11-24 2686 1 1 61 4RRPW (Sharp, 1885) Sharp 1885 [151,557,786,812] Insecta Staphylinidae Renda Animalia Coleoptera 14 15 Arthropoda species brachyptera   Fig. 3      Plochionocerus brachypterus Sharp, 1885: 471;  Herman, 2001: 3747(  Renda).   Type material.   Lectotype(here designated), male: “  Plochionocerus brachypterusD. S. Cerro Zunil  4–5000 ft. Champion(in the plaque with the specimen) / sp. figured / Cerro Zunil, Guatemala. Champion/ B.C.A. Col.I. 2.  Plochionocerus brachypterus, Sharp/ Sharpcoll. 1905-313 / Syntype” ( BMNH).   Paralectotypes: “  Plochionocerus brachypterusVar. Honduras. Sallé(in the plaque with the specimen) / Honduras/ Sallécol. / B.C.A. Col.I.2.  Plochionocerus brachypterus, Sharp/  Sterculia formicariaaliud Sallé / Syntype” ( 1♂, BMNH). “  Plochionocerus brachypterus TypeD. S. Las Mercedes, Guatemala,  3000 ft. Champion(in the plaque with the specimen) / Las Mercedes,  3000 ft.Champion/ B.C.A. Col.I.2.  Plochionocerus brachypterus, Sharp/ Sharpcoll. 1905-313 / Syntype” ( 1♀, BMNH). “ Guatemala: Zapote, G. C. Champion/ B.C.A. Col.I.2  Plochionocerus brachypterusSharp” ( 1♂, FMNH). “  Plochionocerus brachypterusD. S. Misantla, México. Höge(in the plaque with the specimen) / Misantla, México. Höge/ B.C.A. Col.I.2.  Plochionocerus brachypterus, Sharp/ Sharpcoll. 1905-313 / Syntype” ( 1♀, BMNH). “  Plochionocerus brachypterus. Cordova. Mex. Sallé/ (in the plaque with the specimen) / Cordova/ Mexico. Sallécoll. / B.C.A. Col.I. 2.  Plochionocerus brachypterus, Sharp/ 1106 /  Sterculia formicariaCart. Aliud Sallé/ Syntype” ( 1♂, BMNH). “  PANAMA: “  Plochionocerus brachypterusVar. D. S. Bugaba  800–1500 ft. Panama. Champion(in the plaque with the specimen) / Bugaba,  800–1500 ft.Champion/ B.C.A. Col.I. 2.  Plochionocerus brachypterus, Sharp/ Syntype” ( 2 ♀♀, BMNH).  Additional material( 5 specimens). “  MÉXICO: Chiapas, Tuzantán, Finca Irlanda, 4-VI-74, J. Hendrichs/ Cafetal, Alt.  1000–1200 m” ( 1♂, CNI). “ Chiapas, Villa Flores, 22-XI-82, Limber H.” ( ♀, CZUG). “ Jalisco, San Sebastían del Oeste, camino a La Bulera. BTSC,  11-VII- 1997, 950 m, ex hojarasca, J. L. Navarrete” ( 1♂, 1♀, CZUG). “ Nayarit, Hy200, km 131, El Guamuchil,  14-VII-1992, D. Brzoska” ( ♀, SEMC).   Redescription.Total length 14.9 to 18.0 mm. Body black, with maxillary and labial palpi, and tarsi reddish brown. Entire body densely pilose.  Head. Oval, 1.30x as long as wide; dorsally and ventrally slightly convex; dorsal surface of head with dense umbilicate punctures, with only anterior portion smooth; ventral surface of head with dense umbilicate punctures separated unevenly by 1–2x their width ( Fig. 24); temple flattened, with similar punctures as on head disk ( Fig. 28); eyes 0.27x as long as head, interocular distance 0.68x cephalic width; first antennomere almost twice the length of antennomeres 2–3 combined, apical antennomere as long as antennomeres 9–10 combined; labrum slightly bilobed ( Fig. 54); mandibles with external channel; elongate apical maxillary palpomere ( Fig. 38), 1.83x as long as preapical palpomere; apical labial palpomere moderately wide and flattened toward apex ( Fig. 44), nearly twice as long as preapical palpomere.  Thorax. Pronotum 1.48x as long as wide; 1.08x as wide as cephalic width; with dense umbilicate punctures, except for narrow longitudinal impunctate area; without depressed areas on basal half ( Fig. 49). Elytra 0.86x as long as pronotum; elytral disc with dense, pale setae, these setae shorter than those of abdomen. Prosternum with setae less dense than those of mesosternum and metasternum.  Abdomen. Long, pale setae more numerous on lateral and posterior borders of segments compared to the disc.  Aedeagus. Ovally elongate, with lateral margins of median lobe convex; total length 2.37 mm; parameres 0.34x as long as median lobe, apical area of median lobe 0.21x as long as total length of median lobe, and internal sac with weakly sclerotized structures ( Fig. 66).  Variation.Total length (14.2–18.0 mm). One female specimen has legs, antennae and mouthparts entirely reddish brown, contrasting with the majority of specimens that have only antennomeres 4–11, mouthparts and tarsi reddish brown. Some males were observed with the right paramere of the aedeagus slightly longer than the left paramere.  Comparison.  Renda brachypterais similar to species with dense umbilicate punctures on the head and the pronotum, such as  R. bicarinata,  R. flagellicornisand  R. formicaria; it can be distinguished from them by their short elytra relative to the pronotum, the lack of temporal carinae on head, but with tempora flattened, and a pear-shaped aedeagus.   Remarks. Syntypesagree with the localities and countries included in the original description ( Sharp, 1885). Two paralectotypesfrom Panamadesignated by Sharp are at the same time paratypesof  R. bicarinata sp. n.To establish the identity of this species and to avoid its confusion with similar species, such as  R. bicarinata, one malefrom Guatemalawas selected and designated as the lectotypebecause it represents adequately the species, including the aedeagus.  Geographic distribution. Mexico, Guatemalaand Honduras( Herman, 2001). The record from Panamacorresponds instead to  R. bicarinata; specimens reported from Trinidadwere not studied. BMNH B. C. A. Col. & Sharp 763 Champion Champion 14 15 2 lectotype BMNH Salle & B. C. A. Col. Panama Honduras Honduras. Salle 14 15 1 1 paralectotype BMNH B. C. A. Col. & Sharp Panama Type 914 Guatemala Las Mercedes 14 15 1 1 syntype FMNH B. C. A. Col. Panama Champion Guatemala 14 15 1 1 paralectotype BMNH B. C. A. Col. & Sharp Panama Mexico. Hoge Mexico. Hoge Misantla 14 15 1 1 syntype BMNH Mexico. Salle & B. C. A. Col. Panama Cordova Cordova. Mex. Salle 14 15 1 1 syntype BMNH B. C. A. Col. Panama 351 Champion 14 15 2 2 Panama syntype CNI J. Hendrichs Mexico 1100 Tuzantan 14 15 1 1 Chiapas [640,1324,1647,1674] CZUG Mexico Villa Flores 14 15 1 1 Chiapas 1997-07-11 CZUG J. L. Navarrete Mexico San Sebastian del Oeste 14 15 2 1 1 Jalisco [306,1259,1727,1754] 1992-07-14 SEMC D. Brzoska Mexico El Guamuchil Hy 14 15 1 1 Nayarit