Eurynodes coelestis ( Kerremans, 1897 )

Kwast, Tom, 2025, Eurynodes cristatus (Théry, 1934) removed from synonymy with E. coelestis (Kerremans, 1897) (Coleoptera: Buprestidae: Aphanisticini), Zootaxa 5717 (2), pp. 291-296 : 295

Eurynodes coelestis ( Kerremans, 1897)

( Figure 2 )

Brachys coelestis Kerremans, 1897: 134 .

Cylindromorphoides ( Eurynodes) coelestis Théry, 1936: 471 ; Obenberger 1937: 1277; Blackwelder, 1944b: 335.

Eurynodes coelestis Cobos, 1979: 428 ; Bellamy 2003: 94; 2008: 2463; Migliore et al., 2020: 19.

Holotype (by monotypy): Eurynodes coelestis ( 1 ♀, MNHN, see Migliore et al., 2020): Caraça Minas Geraez; Brésil; E. Gounelle 1.2.1885 [p] // Brachys ; coelestis; n. sp. [h]; Kerremans det. [p] // coelestis; Kerr.; Type [h] // MUSÉUM PARIS; Coll. Gounelle; 1915 [p] // HOLOTYPE [p] // HOLOTYPE; Eurynodes ; coelestis ( Kerremans, 1897) [p] // MNHN; EC9092.

Additional material: ( 1 ♀, SMTD: Figs. 2A–E ; original labeling: Fig. 2F ) .

Type locality: “Minas Geraez: Caraça” [Serra do Caraça (Belo Horizonte), Minas Gerais state, Brazil].

In the description of Eurynodes cristatus ( Théry, 1934) an additional specimen ( Fig. 2 ) with different morphological characteristics is mentioned and interpreted by Théry as the possible male of E. cristatus or as a simple variation of it ( Théry, 1934). This specimen was not included within the type series of E. cristatus but was found in the collection of SMTD as well. Contrary to the interpretation of Théry, it was found to be a female after dissecting its ovipositor ( Fig. 2F ). Morphological characteristics like the flattened posthumeral carina ( Figs. 2B, 2D ), slender habitus and the shiny blue color indicate that it belongs to Eurynodes coelestis ( Kerremans, 1897) . A comparison with photographs of the holotype of E. coelestis , figured in Migliore et al. (2020), confirms this assessment.

Diagnosis

Significant morphological differences between E. cristatus and E. coelestis were already noted by Théry (1934, 1936) and Migliore et al. (2020). Females of both species can be separated by the strongly curved posthumeral elytral carina in E. cristatus ( Figs. 1B, 1D ) in comparison to the flat carina on the elytra of E. coelestis ( Figs. 2B, 2D ). The sternites of E. cristatus are somewhat wider than those of E. coelestis ( Figs. 1C , 2C ). The form of the ovipositor and size of the two styli are different ( Figs. 1E , 2E ). Males of both species are currently unknown.

Figures

FIGURE 1. Eurynodes cristatus (Théry, 1934), lectotype female [SMTD]. A) Habitus, dorsal view. B) Habitus, left dorsolateral view. C) Sternites, ventral view. D) Habitus, left lateral view. E) Ovipositor. F) Labels, lower side of the first label black framed. Scale bars = 1 mm for A, B, C, D; 0.5 mm for E. [Photograph E: Stephan Gottwald].

FIGURE 2. Eurynodes coelestis (Kerremans, 1897), additional specimen mentioned in Théry (1934), female [SMTD]. A) Habitus, dorsal view. B) Habitus, left dorsolateral view. C) Sternites, ventral view. D) Habitus, left lateral view. E) Ovipositor. F) Labels, lower side of the first label black framed. Scale bars = 1 mm for A, B, C, D; 0.5 mm for E. [Photograph E: Stephan Gottwald].