Erotylinae Latreille 1802
Creators: name: Skelley, Paul E.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Erotylidae

description: Key to West Indian Erotylinae Genera   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.]
description: Published as part of Skelley, Paul E., 2009, Pleasing fungus beetles of the West Indies (Coleoptera: Erotylidae: Erotylinae), pp. 1-94 in Insecta Mundi 2009 (82) on pages 8-9, DOI: 10.5281/zenodo.5405085