Erotylinae Latreille 1802

1. Anterior edge of pronotum with complete marginal bead (Fig. 2); frontoclypeal suture broad and straight medially (Fig. 2); pronotal and elytral lateral margin with multiple pores along edge; body broadly oval (Fig. 6-9); body bicolored, black with elytra mostly pale yellow to orange (Fig. 4-9) (Erotylini)........................................................................................................................... 2

— Anterior edge of pronotum lacking marginal bead medially (Fig. 3); when visible, frontoclypeal suture V- or U-shaped medially, not straight; pronotal lateral margin with pores visible only at anterior and posterior angles, elytral lateral margin lacking apparent pores; body elongate, more or less parallel-sided; body color unicolorous to strongly patterned, elytra mostly dark, never appearing entirely pale yellow to orange (Fig. 10-11)..................................................... 3

2(1). Body strongly convex, globose in lateral view (Fig. 4); metasternum with coxal lines present........................................................................................................ Aegithus Fabricius [2 spp.]

— Body convex, but somewhat flattened in lateral view (Fig. 5); metasternum with coxal lines absent............................................................................................ Iphiclus Chevrolat [2 spp.]

3(1). Terminal maxillary palpomere acuminate (as in Fig. 12, 26); mentum transverse, wider than long; body length <2.5 mm (Dacnini, known only from amber fossils)............................................................................................................ Dacne Latreille [1 sp.; D. brodzinskyi Skelley]

— Terminal maxillary palpomere broadly dilated (Fig. 13-15); mentum variable; body length> 3.0 mm............................................................................................................................................. 4

4(3). Mentum broadly transverse (Fig. 13); genal lobes projecting ventrally, with mandibles form a shallow cavity in which palpi rest; terminal labial palpomere narrowed, width = 0.2 x terminal maxillary palpomere width (Megalodacnini).................. Antillengis Skelley, n. gen. [2 spp.]

— Mentum triangular (Fig. 14-15); genal lobes projecting laterally or reduced, not forming an cavity in which the palpi rest; terminal labial palpomeres dilated, width = 0.8-1.2 x width of terminal maxillary palpomere (Tritomini)............................................................................................... 5

5(4). Antennomere II elongate, nearly equal in length to antennomere III (Fig. 16); ocular striae lacking; body small, length less than 5 mm................................... Altisessor Skelley, n. gen. [6 spp.]

— Antennomere II globose, half the length of antennomere III or less (Fig. 3, 14); ocular striae present (Fig. 17); body usually larger, length more than 5 mm.............................................. 6

6(5). Meso- and metafemora with marginal bead (Fig. 18-19) along posterior edge; antennomere IX broad and rounded at base, usually wider than long (Fig. 22-23)............................................ 7

— Meso- and metafemora lacking sharp marginal bead (Fig. 20-21) along posterior edge; antennomere IX narrowed and straight or angled toward base, usually longer than wide (Fig. 24-25)........ 8

7(6). Body ovoid, lacking color pattern, dark black with blue sheen; most elytral striae restricted to base, disc smooth (Fig. 10); Cuba.... Cubyrus Skelley, n. gen. [1 sp., C. sapphirus (Skelley)]

— Body elongate, with strong color pattern of pale yellow and black (Fig. 11); all elytral striae complete, nearly as long as elytra, disc distinctly punctate; southern Lesser Antilles (St. Lucia, St. Vincent)........................................... Ischyrus Olivier [1 sp., I. quadripunctatus (Olivier)]

8(6). Body ovate, flattened, strongly dulled, entirely blue, lacking color pattern (Fig. 74), tibiae and antennae entirely pale yellow; antennomere IX narrowly trapezoidal (Fig. 24).................................................................................................. Epytus Dejean [1 sp., E. cyaneus (Duponchel)]

— Body elongate, flattened to robust, usually not strongly dulled, color dark brown to black with variable orange markings, never blue (Fig. 89-104, 121-137); tibiae and antennae mostly dark never pale yellow, some club antennomeres pale; antennomere IX elongate, triangular (Fig. 25)..................................................................................... Notaepytus Skelley, n. gen. [17 spp.]