Oxychalepus

Oxychalepus is a genus of beetles belonging to the family Chrysomelidae.

==Species== {| class=wikitable !Species !Described by !Habitats !Length (adults) !Appearance !Notes |- !Oxychalepus alienus |Baly, 1885 |Colombia, Costa Rica, El Salvador, Honduras, Mexico, Nicaragua, Panama and Venezuela |7.6–9 mm |Yellowish, with a black head, antennae and legs; both the pronotum and elytron have black markings |They have been recorded feeding on Centrosema macrocarpum and Cassia fruticosa. |- !Oxychalepus anchora |Chapuis, 1877 |Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Trinidad and Venezuela |7.4–9.2 mm |Black head and antennae, while the pronotum is yellow with a medial black band and two black lateral bands; the elytron is orangish-yellow with a black anchor-like marking |They have been recorded feeding on Canavalia ensiformis, Canavalia spontanea, Cymbosema species, as well as Solanum auriculatum, Calopogonium mucunoides, Phaseolus vulgaris, Phaseolus lunatus, Glycine max and Mucuna mutesiana. |- !Oxychalepus angulatus |Staines, 2010 |Argentina and Bolivia |10.9–11.1 mm |Black head, antennae and legs, while the pronotum and elytron are orangish-yellow with black markings |The species name is derived from Latin angulus (meaning corner or angle) and refers to the distinctly angulate lateral margin of the pronotum. |- !Oxychalepus balyanus |Weise, 1911 |Belize, Colombia, Costa Rica, El Salvador, Guatemala, Honduras, Mexico (Baja California, Guerrero, Morelos, Jalisco, Tabasco, Tamaulipas, Veracruz, Quintana Roo) and Nicaragua |6.3–8.7 mm |Black head, antennae and legs, while the pronotum and elytron are orangish-yellow with black markings |They have been recorded feeding on Centrosema pubescens, Desmodium species, as well as Dioclea megacarpa. |- !Oxychalepus bisignatus |Chapuis, 1877 |Argentina, Bolivia, Brazil and Ecuador |6–8.6 mm |Black head and legs; the pronotum has a spot on the anterior margin and two reddish triangular markings; the elytron is black with two yellow bands, united by a discal band | |- !Oxychalepus centralis |Uhmann, 1940 |Bolivia, Brazil and Paraguay |7–9 mm |They have a black head, while the pronotum is orange with a large black medial spot. The elytron is orange with the apical one-fourth black and an anchor-like marking | |- !Oxychalepus elongatus |Chapuis, 1877 |Brazil (Bahia), Paraguay and Venezuela |9.5–10.4 mm |They have a black head, while the pronotum is orange with three black vittae. The elytron is orange with the apical one-fourth black and a black sutural vitta and spot | |- !Oxychalepus externus |Chapuis, 1877 |Argentina, Bolivia, Brazil (Rio de Janeiro, São Paulo), Colombia, French Guiana, Paraguay, Peru, Suriname and Venezuela |6.1–9.6 mm |They have a black head and antennae, while the pronotum is yellow, with a black medial band and two black lateral bands. The elytron is black, with a yellow oval spot and a yellow postmedial band |They have been recorded feeding on Inga affinis, Solanum auriculatum, Canavalia ensiformis, Canavalia spontanea, as well as Dioclea, Cimbosema and Phaseolus species. |- !Oxychalepus insignitus |Chapuis, 1877 |Brazil (São Paulo) |10.1–10.4 mm |Adults are reddish-yellow with a black head, antennae and legs; the pronotum and elytron both have black markings | |- !Oxychalepus normalis |Chapuis, 1877 |Brazil, Costa Rica, Mexico, Panama and Venezuela |8.7–10.5 mm |Adults are yellowish-red with a black head and antennae; the lateral margins of the pronotum are black and the elytron is yellowish-red with the suture at the base darker |The foodplant is unknown, but adults have been collected on Cassia species. |- !Oxychalepus opacicollis |Ramos, 1998 |Brazil (Amazonas), Ecuador, Peru and Trinidad |6.5–8.3 mm |Orangish pronotum with a black medial stripe and lateral margins; the apical one-fourth of the elytron is black and there are anchor-shaped black markings in the basal area | |- !Oxychalepus paranormalis |Ramos, 1998 |Brazil |9.1–10.4 mm |Orangish pronotum with one medial and two lateral black stripes; the apical one-fourth of the elytron is black and there is an anchor-shaped black marking in the basal area | |- !Oxychalepus posticatus |Baly, 1885 |Brazil, Costa Rica, Nicaragua and Panama |10–11.6 mm |Black antennae and legs; head is also black, but with an orangish spot; the pronotum is orangish with a black medial vitta and the elytron is orangish with basal black sutural vitta;