Omophoita magniguttis Bechyně, 1955

Begha, Bruno Piotrovski, Prado, Laura Rocha & Oliveira, Sarah Siqueira, 2025, Oedionychina (Coleoptera: Chrysomelidae: Galerucinae: Alticini) from the Parque Estadual Altamiro de Moura Pacheco, a Cerrado remnant, Zootaxa 5659 (1), pp. 29-50 : 36

Omophoita magniguttis Bechyně, 1955

( Figs 2A , 4A, 4E , 6E , 10B )

Omophoita (Homophoeta) magniguttis Bechyně 1955b: 3 (type locality, Rio de Janeiro, Brazil; holotype; type depository, Natural History Museum Basel). Bechyně 1957: 19; Bechyně 1958: 677 (as Homophoeta magniguttis ).

Scherer 1960: 257 ( Homophoeta aequinoctiallis magniguttis ). Bechyně & Bechyně 1971: 296; Seeno et al. 1976: 37; Begha et al. 2023a: 381.

Length: 6.12–7.07 mm, based on five females.

Spermatheca (10B): Reniform.Apex of receptacle with width same as base of pump. Pump convex, acuminate, less sclerotized than receptacle. Spermathecal duct with two coils.

Studied specimens: BRAZIL, GO, Goianápolis Parque Altamiro de Moura Pacheco-PEAMP | Malaise Mata, próximo ao reservatório – Trilha da Mangueira | -16.555119 -49.172473 | 05.viii.2022 - 08ix.2022 | Cols. Oliveira, S.S. & Lopes, W.R. 3 ♀; (Same location as previous) 08.ix.2022 - 05.x.2022 | Cols. Oliveira, S.S. & Lopes, W.R. ♀ ; Malaise Mata, margem do córrego carapina – Trilha da Onça | -16.534879 -49.113812 – 790m | 08.ix.2022 - 05.X.2022 | Cols. Oliveira, S.S. & Lopes, W.R. ♀ ( ZUFG) .

Distribution: Brazil – states of Espírito Santo, Goiás, Mato Grosso, Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul, São Paulo, Santa Catarina; Argentina, Bolívia, Paraguay, Peru.

Remarks: This is a known species of Omophoita widespread in Brazil. Begha et al. (2023a) provide an updated morphological description for this species, including illustrations and dissections. A minor correction to that description should be noted: we previously described the macula present in O. magniguttis as “large pale macula extending to the vertex, rounded”, but it appears this species’ macula is rectangular, mostly covering the area between the eyes.

Figures

FIGURE 2. Oedionychina sampled in Malaise trap in the Parque Estadual Altamiro de Moura Pacheco, Goiás, Brazil, dorsal view.A, Omophoita magniguttis (female); B, Paranaita opima (male); C, Walterianella maraesp. nov. (female); D, Walterianella tapuiae sp. nov. (male). Scale bar 1 mm.

FIGURE 4. Oedionychina sampled in Malaise trap in the Parque EstadualAltamiro deMoura Pacheco, Goiás, Brazil,dorsal view. A, Omophoita magniguttis (female); B, Paranaita opima (male); C, Walterianella marae sp. nov. (female); D, Walterianella tapuiae sp. nov. (male). Scale bar 1 mm.

FIGURE 6. Oedionychina sampled in Malaise trap in the Parque Estadual Altamiro de Moura Pacheco, Goiás, Brazil, frontal view of the head. A, Alagoasa burmeisteri (female, morphotype 1); B, Alagoasa burmeisteri (female, morphotype 2); C, Alagoasa burmeisteri (female, morphotype 3); D, Omophoita mateusi sp. nov. (male); E, Omophoita magniguttis (female); F, Paranaita opima (male); G, Walterianella marae sp. nov. (female); H, Walterianella tapuiae sp. nov. (male). Scale bar 1 mm.

FIGURE 10. Spermatheca of female Oedionychina sampled in Malaise trap in the Parque Estadual Altamiro de Moura Pacheco, Goianápolis, Goiás, Brazil. A. Alagoasa burmeisteri; B. Omophoita magniguttis; C. Walterianella marae sp. nov.; D. Walterianella tapuiae sp. nov. Scale bar 1 mm. E. Alagoasa libentina; F. Walterianella interruptovittata; photos from Konstantinov et al. (2022), figures 5J and 29E from that publication, respectively, for comparison (not in scale).