Key to species of Beraba (modified from Botero, 2015 and García et al. 2019)

1. Each elytron with two anterior eburneous callosities.......................................................... 2

- Each elytron with one anterior eburneous callosity........................................................... 5

2(1). Pronotal tubercles of same color as remainder of pronotum. Bolivia (Santa Cruz)....... B. pallida Galileo & Martins, 2008

- Pronotal tubercles black (contrasting in color from remainder of pronotum)....................................... 3

3(2). Pronotal tubercles well projected and acute apically; pronotum glabrous; inner posterior eburneous callosities not surrounded laterally by black area. Venezuela (Bolivar) and Brazil (Amazonas)......................... B. longicollis (Bates, 1870)

- Pronotal tubercles rounded apically; pronotum with sparse and fine pubescence; males with sexual punctation at lateral sides of pronotum and prosternum of males; inner posterior eburneous callosities surrounded by black area in its sutural margin.... 4

4(3). Pronotal tubercles surrounded by black area, projected toward almost posterior margin of pronotum in males (toward anterior margin and lateral sides, almost reaching lateral tubercles of prothorax in females); elytral apex with two spines: external one long, sutural one small; ventrites of male with small darker region laterally (Figs 1–10). Colombia (Bolívar, and Sucre)...................................................................................... B. coloradensis sp. nov.

- Pronotum without dark area surrounding tubercles; elytral apex without sutural spine; ventrites without small darker region laterally in males (Figs 11–20). Panamá, Colombia (Atlántico, Bolívar, Cordoba, and Magdalena)..................................................................................................... B. piriana Martins, 1997

5(1). Elytra with eburneous callosities narrow and elongate; external posterior callosity, at least, one third of elytral length and separated for the innermost callosity by distance equivalent to the width of a callosity............................... 6

- Elytra with eburneous callosities elliptical, thicker and less elongate; external posterior callosity slightly longer than the inner and separated for the innermost callosity by distance smaller than the width of a callosity............................ 8

6(5). Antennae and tibiae black; lateral spine of prothorax weakly projected; tubercles of pronotum concolorous with pronotal surface; external posterior callosity of elytra starting behind innermost posterior callosity. Brazil (Bahia, Minas Gerais, and Espírito Santo)....................................................... B. grammica (Monné & Martins, 1992)

- Antennae and tibiae brownish-orange or bicolored; lateral spine of prothorax clearly visible; tubercles of pronotum black; external posterior callosity of elytra starting ahead of innermost posterior callosity.................................. 7

7(6). Head, pronotum, and most of ventral region dark; antennae and tibiae bicolor; between anterior and posterior callosities with elytral costae visible. Ecuador (Manabi)................................................ B. hovorei Botero, 2015

- Head, pronotum, ventral region, and tibiae brownish-orange; elytra without costae visible. Brazil (Bahia, Minas Gerais)..................................................................................... B. erosa (Martins, 1981)

8(5). Tubercles of pronotum of same color as remainder of pronotum................................................ 9

- Tubercles of pronotum black (contrasting in color from remainder of pronotum).................................. 12

9(8). Postero-external eburneous callosity of elytra located on beginning of apical third and distant internal callosity. Brazil (Rio de Janeiro)..................................................................... B. angusticollis (Zajciw, 1961)

- Posterior eburneous callosities of elytra located at same level................................................. 10

10(9). Meso- and metafemora with short inner spine, shorter than length of scape; elytral apex unarmed. Colombia (Bolívar), Ecuador (Pichincha)......................................................................... B. iuba Martins, 1997

- Meso- and metafemora with long inner spine, longer than length of scape; elytral apex with spines.................... 11

11(10). Surface of pronotum coarsely punctate; eburneous callosities narrowed, postero-external eburneous callosity at least twice length of internal; elytral costae visible; elytral apex obliquely truncate. Ecuador (El Oro, Guayas, Manabi).............................................................................................. B. moema Martins, 1997

- Surface of pronotum smooth; eburneous callosities wider, subrounded; posterior eburneous callosities with similar size; elytral costae absent; elytral apex truncate. Colombia (Bolívar)..................... B. anae García, Botero & Martínez, 2019

12(8). Apex and spines of femora of same color as remainder....................................................... 13

- Apex and spines of femora black, contrasting with adjacent color.............................................. 17

13(12). Surface of pronotum only with wrinkles or with wrinkles and some interspersed punctures.......................... 14

- Surface of pronotum only with punctures, without wrinkles................................................... 16

14(13). Postero-external eburneous callosities at least twice length of internal; external apex of elytra unarmed. Colombia (Amazonas, Bolívar, Cundinamarca, and Valle del Cauca).................................. B. inermis Martins & Galileo, 2002

- Posterior eburneous callosities with similar size; apex of elytra with external spine................................ 15

15(14). Pronotal tubercles slightly elevated; prosternum without sexual punctation; ventrites II–IV of males with depressed areas and with long yellowish setae on posterior margin of these areas. Colombia (Atlántico, Bolívar, Cesar, Magdalena, and Santander)....................................................................... B. marica Galileo & Martins, 1999

- Pronotal tubercles distinctly elevated; prosternum with areas of sexual punctation; ventrites of males not modified. Colombia (Bolívar, Sucre)................................................... B. angeli García, Botero & Martínez, 2019

16(13). Anterior eburneous callosities narrowed and elongated; elytral costae visible behind posterior callosities. Bolivia (Santa Cruz).......................................................................... B. tate Galileo & Martins, 2010

- Anterior eburneous callosities short and subrounded; without elytral costae visible behind posterior callosities. Colombia (Bolívar, Cordoba, and Sucre), Venezuela (Aragua, Tachira)............................... B. limpida Martins, 1997

17(12). Pronotum smooth or only with microsculpture; subrounded eburneous callosities. Brazil (Mato Grosso do Sul), Bolivia (Cochabamba, Santa Cruz), and Paraguay ............................................ B. cheilaria (Martins, 1967)

- Pronotum rugosely punctate. Elongated eburneous callosities................................................. 18

18(17). Scape black or darker than flagellomeres; prothorax subparallel-sided; eburneous callosities elongate and thin. Brazil (Goiás, Maranhão, Mato Grosso, and Piauí).................................................... B. decora (Zajciw, 1961)

- Scape with same color as flagellomeres; prothorax curved on sides or narrowed toward anterior margin; eburneous callosities elliptical........................................................................................... 19

19(18). Lateral tubercles of prothorax small; posterior eburneous callosities starting anteriorly at same level; apex of elytra with black area. French Guiana ....................................................... B. odettae Martins & Galileo, 2008

- Lateral tubercles of prothorax long and acute; postero-external eburneous callosity starting behind internal one; apex of elytra without black area. Peru (Loreto, Ucayali)............................................. B. spinosa (Zajciw, 1967)