Omophoita, Chevrolat, 1836, Chevrolat, 1836

Begha, Bruno Piotrovski, Anjos, Camila Alves Dos, Santos, Mateus Henrique & Prado, Laura Rocha, 2023, Checklist of Omophoita Chevrolat, 1836 (Coleoptera: Chrysomelidae: Galerucinae: Alticini) and diagnoses for some species from southern Brazil: notes on the taxonomic history, redescriptions and new records, Zootaxa 5357 (3), pp. 375-397 : 391

Identification key

1 Pale white or yellow maculae at the head, limited to the antennal cali............................................ 2

- Pale white or yellow maculae at the head, expanding to the vertex............................................... 3

2 Reddish body integument (reddish brown or light brown in dry pinned specimens). Anterior pale yellow maculae on elytra not reaching base of elytra, and with rounded posterior margin...................... O. communis ( Bechyné, 1959) ( Fig. 5 )

- Body integument black or dark brown, except reddish elytra. Anterior pale yellow maculae on elytra reaching base of elytra and with rectangular posterior margin............................................ O. equestris ( Fabricius, 1787) ( Fig. 6 )

2 Eight or more elytral maculae visible...................................................................... 3

- Six elytral maculae visible.............................................................................. 4

3 Reddish elytral integument; Ten elytral macules in total, six triangular maculae from median to posterior region, arranged radially, two maculae in the distal portion of the elytra, maculae in the anterior portion of the humeral region.................................................................................. O. magniguttis Bechyné, 1956 ( Fig. 8 )

- Black elytral integument; Eight maculae in total; six large pale maculae, rounded or rectangular, and two small rectangular maculae in the humeral region of the elytra........................................ O. octoguttata ( Fabricius, 1775)

4 Reddish body integument (reddish brown or light brown in pinned specimens). Six pale maculae, reddish colored elytra (reddish brown or light brown in pinned specimens).................................... O. sexnotata ( Harold, 1876) ( Fig. 11 )

- Body integument black or dark brown. Six visible elytral maculae, red elytral integument............................ 5

5 Elytral pattern with six rounded yellow pale maculae. Specimens larger than the average Omophoita .............................................................................. O. sesquilunata ab. latitarsis Bechyné, 1955 ( Fig. 7 )

- Elytral pattern with six rectangular white pale maculae (yellow or light brown in pinned specimens)........................................................................................... O. personata ( Illiger, 1807) ( Fig. 10 )

Figures

FIGURES 5–11. Dorsal view of the observed Omophoita species from southern Brazil. (5) O. communis (male). (6) O. equestris (female) (7) O. sesquilunata (male). (8) O. magniguttis (female). (9) O. octoguttata (female). (10) O. personata (male). (11) O. sexnotata (male).