Key to species of Oreodera known in Ecuador (For comparison, see photographs at Bezark 2016) 1. Elytra with sparse, but very distinct tubercles on basal half. Colombia, Ecuador, Peru, Bolivia ...................................................................................................... O. tuberculata Thomson, 1865 - Elytra without distinct tubercles on basal half.............................................................. 2 2(1). Sides of elytra with white or whitish dense pubescence, distinctly contrasting with that closer to suture along central 2/4... 3 - Elytra with different pattern of pubescence................................................................ 7 3(2). Elytral pubescence forming oblique bands from sides toward suture; elytral apex strongly obliquely truncate, making the outer angle notably projected. Ecuador ..................................................... O. antonkozlovi sp. nov. - Elytra without oblique bands of pubescence from sides toward suture; elytral apex, at most, slightly oblique truncate, with outer angle slightly or not projected....................................................................... 4 4(3). White pubescence of elytra restrict to the sides, distinct not projected toward dorsal surface. Panama, French Guiana, Ecuador, Peru, Brazil (Pará, Rondônia), Bolivia.................................................... O. cretata Bates, 1861 - White pubescence of elytra distinct reaching dorsal surface................................................... 5 5(4). Elytra very coarsely punctate inside of the area with white pubescence. Ecuador, Brazil (Amazonas, Mato Grosso)........................................................................................... O. sericata Bates, 1861 - Elytra, at most, finely punctate inside of the area with white pubescence......................................... 6 6(5). Elytral white pubescence very dense, starting near humerus. Ecuador .................. O. aglaia Monné & Fragoso, 1988 - Elytral white pubescence restrict to central region. Costa Rica, Panama, Ecuador....... O. albilatera Martins & Monné, 1993 7(2). Elytra with a transverse narrow dark band of pubescence near the base, distinctly contrasting with the color of the basal pubes- cence (sometimes interrupted laterally).................................................................... 8 - Elytra without this band.............................................................................. 14 8(7). Pronotum with well-marked U-shaped macula. Ecuador, Peru, Bolivia................. O. olivaceotincta Tippmann, 1953 - Pronotum without well-marked U-shaped macula........................................................... 9 9(8). Elytra with two transverse, irregular, but well-delimited bands of white pubescence on distal half. Costa Rica, Panama, Guy- ana, French Guiana, Ecuador, Brazil (Amapá, Pará, Mato Grosso), Bolivia..................... O. fluctuosa Bates, 1861 - Elytra with different pubescent areas on distal half (if presents, they are ill-delimited and slightly contrasting with the pubes- cence around then).................................................................................. 10 10(9). Dorsal pubescence mostly yellowish. Colombia, Ecuador......................... O. advena Martins & Galileo, 2005 - Dorsal pubescence not mostly yellowish................................................................. 11 11(10). Pronotum without shiny tubercles. Ecuador, Peru, Brazil (Amazonas, Mato Grosso)............ O. rufofasciata Bates, 1861 - Pronotum with shiny tubercles......................................................................... 12 12(11). Punctures on basal third of the elytra sparse and distinctly tuberculate. Ecuador, French Guiana, Brazil (Amazonas, Rondônia, Mato Grosso, Maranhão)............................................................. O. undulata Bates, 1861 - Punctures on basal third of the elytra abundant and not or slightly tuberculate.................................... 13 13(12). Elytral punctures on basal half fine, not tuberculate. Ecuador .................... O. mocoiatira Galileo & Martins, 1998 - Elytral punctures on basal half coarse, slightly tuberculate. Colombia, French Guiana, Ecuador, Peru, Brazil (Amazonas, Amapá)................................................................. O. melzeri Monné & Fragoso, 1988 14(7). Each elytron with two dark maculae laterally at central region, usually fused..................................... 15 - Elytra without these maculae........................................................................... 20 15(14). Pubescence on base of the elytra distinctly contrasting with that on remaining surface (mainly that near base)........... 16 - Pubescence on base of the elytra not contrasting with that on remaining surface (mainly that near base)................ 17 16(15). Femora notably clavate. French Guiana, Ecuador, Peru............................ O. crinita Monné & Fragoso, 1988 - Femora slender. French Guiana, Brazil (Amapá, Amazonas, Pará, Mato Grosso)................ O. neglecta Melzer, 1932 17(15). Elytral punctures abundant, notably contrasting with pubescence on basal third....................................18 - Elytral punctures sparser, not well-contrasting with pubescence on basal third..................................... 19 18(17). Circum-scutellar punctures fine, notably dense; punctures on distal half of the elytra moderately abundant; each elytron with an elongate dark macula centrally near middle. Ecuador, Brazil (Rondônia)............ O. magnoi Monné & Fragoso, 1988 - Circum-scutellar punctures coarser and sparser; punctures on distal half of the elytra sparse; each elytron with a sub-circular dark macula centrally near middle. Panama, Colombia, Venezuela, Suriname, French Guiana, Ecuador, Peru, Brazil (Amazo- nas, Maranhão, Paraíba, Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, Rio Grande do Sul), Paraguay, Argentina (Misiones), Uruguay................................... O. aerumnosa Erichson, 1847 19(17). Elytral basal third with large, triangular macula. Ecuador, Peru, Brazil (Acre, Rondônia, Mato Grosso)....................................................................................... O. macropoda Marinoni & Martins, 1978 - Elytral basal third without triangular macula. Colombia, Guyana, French Guiana, Ecuador, Peru, Brazil (Amazonas, Pará, Rondônia, Mato Grosso, Goiás, Maranhão), Bolivia.................................... O. bituberculata Bates, 1861 20(14). Pubescence on base of the elytra distinctly contrasting with that close to it. El Salvador, Nicaragua, Costa Rica, Panama, Colombia, Ecuador.......................................................... O. costaricensis Thomson, 1865 - Pubescence on base of the elytra not distinctly contrasting with that close to it.................................... 21 21(20). Pronotal tubercles shiny; elytra with white, dense maculae of pubescence. Ecuador .... O. rhytisma Monné & Fragoso, 1988 - Pronotal tubercles pubescent; elytra with yellow or yellowish, dense maculae of pubescence. French Guiana, Ecuador, Brazil (Amapá, Amazonas, Pará, Rondônia, Maranhão), Bolivia.................................... O. simplex Bates, 1861

Published as part of Santos-Silva, Antonio & Botero, Juan Pablo, 2016, A new species of Oreodera Audinet-Serville, 1835 from Ecuador (Coleoptera, Cerambycidae, Lamiinae) and new geographical records, pp. 423-427 in Zootaxa 4196 (3) on pages 425-426, DOI: 10.11646/zootaxa.4196.3.6, http://zenodo.org/record/168125