To facilitate identification of the 5 new Neorthopleura species presented herein, I provide a key that amends the one provided in 2013 (OPITZ, 2013: 2); beginning with couplet 16.

16 Elytra mostly yellow or entirely red..................................................................................17

- Elytra entirely black or entirely dark brown......................................................................18

17 Elytral posterior 1/3 rd black (Panama) .................................... Neorthopleura galbina OPITZ

- Elytral posterior 1/3 rd red (Brazil) ................ Neorthopleura rubra OPITZ nov.sp. (Fig. 312)

18 Pronotum red.....................................................................................................................19

- Pronotum black .................................................................................................................23

19 Elytra at least partially red (Trinidad, Venezuela, Brazil) ..................................................... ............................................................................................ Neorthopleura velutina (KLUG)

- Elytra black .......................................................................................................................20

20 Pronotal side margin dark (North America) ........................ Neorthopleura thoracica (SAY) - Pronotal sides not dark ......................................................................................................22

21 Legs testaceous (Mexico)........................ Neorthopleura quintana OPITZ nov.sp. (Fig. 311) - Legs brown........................................................................................................................22

22 Specimens from the West Indies (Cayman Islands, Andros Island, British West Indies) ..... ................................................................. Neorthopleura thomasi OPITZ nov.sp. (Fig. 313)

- Specimens from Brazil ............................. Neorthopleura cuspidis OPITZ nov.sp. (Fig. 310)

23 Specimens from North America or South America...........................................................24 - Specimens not from North or South America ...................................................................25

24 Specimens from North America (USA) .............................. Neorthopleura texana (BLAND)

- Specimens from South America (Ecuador) ................. Neorthopleura guayasenensis OPITZ

25 Specimens from México .............................................................. Neorthopleura baja OPITZ

- Specimens from West Indies.............................................................................................26

26 Collateral branch of male antennomere 10 as long as length of antennomere 10 disc (Fig. 30); female capitular antennomere 10 (Fig. 32) without collateral branch ................... ............................................................................. Neorthopleura subfasciata (CHEVROLAT)

- Collateral branch of male antennomere 10 not as long as length of disc of antennomere 10 ......................................................................................................................................27

27 Pronotum dark brown; specimens from Curacao .................................................................. ................................................................ Neorthopleura turnbowi OPITZ nov.sp. (Fig. 314)

- Pronotum light reddish brown ...........................................................................................28

28 Specimens from the Dominican Republic ............................ Neorthopleura murina (KLUG)

- Specimens from Puerto Rico ............................................ Neorthopleura uncopanda OPITZ