The Pardisomus species from Costa Rica, with descriptions of four new species and one larva (Coleoptera: Curculionidae: Baridinae).

Die neotropische Rüsselkäfergattung Pardisomus Pascoe wird neu definiert auf der Grundlage morphologischer Merkmale von Agalmatus Kuschel und der Vergemeinschaftung von sechs Arten mit Pentagonia Bentham (Rubiaceae). Procholus Desbrochers, Anambates Casey, Piazambates Voss und Agalmatus sind neue Synonyme von Pardisomus. Neu kombiniert werden mit Pardisomus 1) aus Agalmatus: P. brasiliensis (Kuschel), P. geniculatus (Hustache), P. nigritarsis (Kuschel), P. panamensis (Kuschel); 2) aus Embates: P. cleroides (Champion); 3) aus Lydamis: P. squamipes (Kirsch); 4) aus Peridinetus: P. rufescens (Hustache); 5) aus Piazambates: P. piazuroides (Voss); und 6) aus Procholus: P. biplagiatus (Desbrochers). Aus Costa Rica werden vier neue Pardisomus-Arten beschrieben: P. albescens, P. amotus, P. byrrus und P. suffuscus. Die Larve von mutmaßlichen P. biplagiatus wird erstmalig beschrieben.Stichwörterweevils, taxonomy, new species, Pentagonia, Neotropics.Nomenklatorische HandlungenAgalmatus Kuschel, 1958 (Curculionidae), syn. n. of Pardisomus Pascoe,1889Anambates Casey, 1922 (Curculionidae), syn. n. of Pardisomus Pascoe,1889Procholus Desbrochers, 1907 (Curculionidae), syn. n. of Pardisomus Pascoe,1889Piazambates Voss, 1954 (Cureculionidae), syn. n. of Pardisomus Pascoe,1889albescens Prena, 2003 (Pardisomus), spec. n.amotus Prena, 2003 (Pardisomus), spec. n.biplagiatus (Desbrochers, 1906) (Pardisomus), Lectotype; comb. n. hitherto Pseudolochus biplagiatusbrasiliensis (Kuschel, 1958) (Pardisomus), comb. n. hitherto Agalmatus brasiliensisbyrrus Prena, 2003 (Pardisomus), spec. n.cleroides (Champion, 1907) (Pardisomus), Lectotype; comb. n. hitherto Ambates cleroidesgeniculatus (Hustache, 1950) (Pardisomus), comb. n. hitherto Peridinetus geniculatusnigritarsis (Kuschel, 1958) (Pardisomus), comb. n. hitherto Agalmatus nigritarsispanamensis (Kuschel, 1958) (Pardisomus), comb. n. hitherto Agalmatus panamensispiazuroides (Voss, 1954) (Pardisomus), comb. n. hitherto Piazambates piazuroidesrufescens (Hustache, 1950) (Pardisomus), comb. n. hitherto Peridinetus rufescenssquamipes (Kirsch, 1857) (Pardisomus), comb. n. hitherto Scambus squamipessuffuscus Prena, 2003 (Pardisomus), spec. n.The neotropical weevil genus Pardisomus Pascoe is redefined based on morphological character states of Agalmatus Kuschel and association of six species with Pentagonia Bentham (Rubiaceae). Procholus Desbrochers, Anambates Casey, Piazambates Voss and Agalmatus are new synonyms of Pardisomus. New combinations with Pardisomus are 1) from Agalmatus: P. brasiliensis (Kuschel), P. geniculatus (Hustache), P. nigritarsis (Kuschel), P. panamensis (Kuschel); 2) from Embates: P. cleroides (Champion); 3) from Lydamis: P. squamipes (Kirsch); 4) from Peridinetus: P. rufescens (Hustache); 5) from Piazambates: P. piazuroides (Voss); and 6) from Procholus: P. biplagiatus (Desbrochers). Four new species of Pardisomus are described from Costa Rica: P. albescens, P. amotus, P. byrrus and P. suffuscus. The larva of putative P. biplagiatus is described for the first time.Keywordsweevils, taxonomy, new species, Pentagonia, Neotropics.Nomenclatural ActsAgalmatus Kuschel, 1958 (Curculionidae), syn. n. of Pardisomus Pascoe,1889Anambates Casey, 1922 (Curculionidae), syn. n. of Pardisomus Pascoe,1889Procholus Desbrochers, 1907 (Curculionidae), syn. n. of Pardisomus Pascoe,1889Piazambates Voss, 1954 (Cureculionidae), syn. n. of Pardisomus Pascoe,1889albescens Prena, 2003 (Pardisomus), spec. n.amotus Prena, 2003 (Pardisomus), spec. n.biplagiatus (Desbrochers, 1906) (Pardisomus), Lectotype; comb. n. hitherto Pseudolochus biplagiatusbrasiliensis (Kuschel, 1958) (Pardisomus), comb. n. hitherto Agalmatus brasiliensisbyrrus Prena, 2003 (Pardisomus), spec. n.cleroides (Champion, 1907) (Pardisomus), Lectotype; comb. n. hitherto Ambates cleroidesgeniculatus (Hustache, 1950) (Pardisomus), comb. n. hitherto Peridinetus geniculatusnigritarsis (Kuschel, 1958) (Pardisomus), comb. n. hitherto Agalmatus nigritarsispanamensis (Kuschel, 1958) (Pardisomus), comb. n. hitherto Agalmatus panamensispiazuroides (Voss, 1954) (Pardisomus), comb. n. hitherto Piazambates piazuroidesrufescens (Hustache, 1950) (Pardisomus), comb. n. hitherto Peridinetus rufescenssquamipes (Kirsch, 1857) (Pardisomus), comb. n. hitherto Scambus squamipessuffuscus Prena, 2003 (Pardisomus), spec. n