Omophoita magniguttis Bechyné, 1955a

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 : 386

Omophoita magniguttis Bechyné, 1955a

( Figs 8 , 15 , 22 , 26 )

References: Bechyné 1958a: 677; Seeno et al. 1976: 32 ( Homophoeta ); Bechyné 1957b: 19; ( Homophoeta aequinoctialis magniguttis ) Scherer 1960: 257; Bechyné & Bechyné,1971: 296.

Type: Omophoita magniguttis: Bechyné 1955a: 5 . Brazil, Rio de Janeiro , Muri, Wittmer, W., I–III 1952. Deposit institution: Naturhistorisches Museum Basel , Switzerland .

Length: 6,25–7,16 mm.

Head: dark brown to black. Large pale macula extending to the vertex, rounded. Two pale maculae visible at the lower portion of the frons. Mouthparts: labrum with fourteen setae. Antennae: black.

Prothorax: pronotum yellowish. Metathorax and mesothorax: light brownish. Elytra: elytral integument reddish-brown. Ten total pale maculae visible; six triangular-shaped maculae on the upper median portion of the elytral, arranged radially in a circle, and two macules in the posterior portion of elytra, with an oval aspect, two small maculae at the anterior humeral region. Scutellum: triangular, posterior portion rounded. Legs: femurs brownish, tibiae and tarsi black.

Abdomen: light brownish. Male Aedeagus Median lobe ( Fig. 22 ): Ventral sclerite not visible in dorsal view. Apical hood rounded; dorsal median process visible; proximal portion of the dorsal median process wider than the apex; with two broad and parallel projections at the apex, semi-triangular, base of the projections wider than the apex. Dorsal lateral sclerite visible, subtrapezoid, poorly defined. Oblique dorsal process ventrally curved; apex visible in dorsal view, rounded. Female Tignum ( Fig. 26 ): base wider than the apex; hood-like structure in the median portion present ( Fig. 4 ); median portion sclerotized; median portion distal with the same width of the apex of the distal portion; distal portion with wide apex, lateral margins divergent.

Specimens studied: BRAZIL: Paraná: Ponta Grossa, Almeida, M. C. 21.X.2007 1 ♁ (LabGev-UEPG); Grossa , Almeida, M. C. 21.X.2007 1 ♀ (LabGev-UEPG) .

Observed distribution in the Southern Brazil: Paraná ( Antonina, Ponta Grossa ) ( Fig. 31 ).

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).

FIGURES 12–18. Lateral view of the observed Omophoita species from southern Brazil. (12) O. communis (male). (13) O. equestris (female). (14) O. sesquilunata (male). (15) O. magniguttis (female). (16) O. octoguttata (female). (17) O. personata (male). (18) O. sexnotata (male).

FIGURES 19–22. Median lobe of the observed Omophoita species from southern Brazil, dorsal view. (19) O. communis. (20) O. equestris. (21) Morphology shared by O. sesquilunata and O. personata. (22) Morphology shared by O. magniguttis and O. sexnotata. Scale bar 500 μm.

FIGURES 23–28. Tignum of the observed Omophoita species of southern Brazil, dorsal view. (23) O. communis. (24) O. equestris. (25) O. sesquilunata. (26) O. magniguttis. (27) O. personata. (28) O. sexnotata. Scale bar 500 μm.

FIGURES 3–4. Generalized morphology of male median lobe and female tignum of Omophoita, indicating structures relevant for the systematic discussion. (3) Median lobe, dorsal view. (4) Tignum, dorsal view. (VNS), ventral sclerite; (PDM), projections of the dorsal median process; (LDS), lateral dorsal sclerite; (DMP), dorsal median process; (ODP), oblique dorsal process; (APH), apical hood; (BSH), basal hooks; (FRM), basal foramen; (DPT), distal portion of the tignum; (HDL), hood-like structure; (VLP), vaginal palpus; (BPT), basal portion of the tignum.

FIGURES 29–35. Observed geographic distribution of the Omophoita species from southern Brazil, showcasing the brazillian biomes. (29) O. communis. (30) O. equestris. (31) O. magniguttis. (32) O. octoguttata. (33) O. personata. (34) O. sesquilunata (35) O. sexnotata. Shapes: circle, location data from published literature and pinned specimens; diamond, data from the iNaturalist database; triangle, data from the SpeciesLink.