Key to the species of the genus Eucharitolus

1. Prosternal process at least half as wide as procoxal cavity...................................................... 2

- Prosternal process less than half as width as procoxal cavity....................................................3

2 (1). Anterior region of pronotum with transverse depression; protibiae with a small ventral tooth on the basal third (reduced in females). Brazil (Espírito Santo). (Figs 1–4)........................................ Eucharitolus depressus sp. nov.

- Anterior region of pronotum without transverse depression; protibiae without small tooth. Brazil (Rio de Janeiro to Rio Grande do Sul). (Fig. 5)................................................................... E. lituratus (Melzer,1934)

3 (1). Distance between upper ocular lobes equal to four times the width of the lobe; antennomeres III-VII thick, antennomeres VIII- XI very thin. Peru and Bolivia. (Fig. 6)........................................... E. geometricus (Tippman, 1960)

- Distance between upper ocular lobes equal to twice the width of the lobe; antennomeres III-XI with similar thickness...... 4

4 (3). Scape reaching the posterior margin of pronotum. Peru. (Fig. 7).................................... E. longus sp. nov.

- Scape not reaching the posterior margin of pronotum.........................................................5

5 (4). Sides of pro- and mesosternum with dark-brown integument; apex of meso- and metatibiae with ring of black pubescence..6

- Sides of pro- and mesosternum without dark-brown integument; apex of meso- and metatibiae without ring of black pubescence.......................................................................................... 7

6 (5). Elytral pubescence predominantly whitish, each elytron with two dark-brown spots, one in the anterior region and another postmedian, laterally with some continuous or broken longitudinal brown bands; females with urosternite V exceeding elytral apices by more than half its length. Brazil (Rondônia and São Paulo). (Figs 8–9).................... E. spilotus sp. nov.

- Elytra with other pattern of pubescence; urosternite V not exceeding elytral apices by more than half its length (Figs 10–11)............................................................................. E. dorcadioides (White, 1855)

7 (5). Elytral pubescence predominantly whitish, with four brown spots, one in basal third next to elytral suture, one lateral in humeral region, one in the middle and one in posterior third; elytra apices emarginate. Brazil (Rio de Janeiro to Santa Catarina). (Fig. 12)................................................................. E. bellus (Melzer, 1927)

- Elytra with areas of whitish pubescence and an extensive pattern of brownish patches with each elytron having two large contiguous patches along the base and humeral angles, another smaller rounded patch laterally at basal third, one medially extending transversally towards suture and posteriorly to apex, and a smaller sub-rounded spot above apices. Elytral apices straight. Guatemala, Panama and Bolivia. (Fig. 13)........................................ E. pulcher Bates, 1885