Chrysomela quadriguttata Fabricius, 1781

Roie, Martijn Van, Kuhlmann, Michael, Mack, Anne & Konstantinov, Alexander, 2024, Fabrician types of new world Oedionychina Chapuis, 1875 (Coleoptera, Chrysomelidae, Alticini) deposited in the Zoological Museum of Kiel University collections with notes on Fabrician types of other collections and new combinations for species formerly placed in the subtribe, European Journal of Taxonomy 920 (1), pp. 1-60 : 13-14

Chrysomela quadriguttata Fabricius, 1781

Figs 7–8

quadriguttata Fabricius, 1781: 132 (Cajennae) .

Material examined

Lectotype (presently designated)

COUNTRY NOT INDICATED ON SPECIMEN • ♂; “ 4 guttata / TYPE/ Lectotype Chrysomela quadriguttata Fabricius 1781 des. Van Roie, Kuhlmann, Mack & Konstantinov, 2023”; Kiel.

Paralectotype

COUNTRY NOT INDICATED ON SPECIMEN • 1 ♀; “ 4 guttata / TYPE/ Lectotype Chrysomela quadriguttata Fabricius 1781 des. Van Roie, Kuhlmann, Mack & Konstantinov, 2023”; Kiel.

Status in Zimsen (1964)

P. 112 No.1742. “Cajennae D. Schulz” Kiel 2 specimens.

Original description

“C. saltatoria ferruginea, thorace elytrorumque punctis quator albis. Habitat Cajennae. D. Schulz. Nimis affinis videtur C. 2guttatae, at puncta elytrorum quator magna distincta. Pedes femoribus posticis incrassatis.”

Current status

Phenrica quadriguttata ( Fabricius, 1781) stat. rest., comb. nov.

Measurements

Lectotype ( Fig. 7 ): LB = 4.23 mm; WB = 2.10 mm. Paralectotype ( Fig. 8 ): LB = 4.02; WB = 2.35 (specimen difficult to measure due to body pose on insect pin, see Fig. 8 ).

Remarks

The lectotype for Chrysomela quadriguttata is designated here to have a unique bearer of this name and the standard for its application. The left antenna of the lectotype is missing segments 6–11. This species had been synonymized with Omophoita aequinoctialis ( Linnaeus, 1758) by Harold 1877: 140. Chrysomela quadriguttata indeed shares some resemblance with O. aequinoctialis , but clearly does not belong in Oedionychina . Based on the following characters it belongs to Disonychina LeConte & Horn, 1883: frontal ridge long, about twice as long as clypeus; pronotum quadrate, anterolateral callosity of pronotum strongly rounded, apical metatarsomere not globosely swollen. Within Disonychina, it belongs to Phenrica Bechyné, 1957 .

Figures

Fig. 7. Chrysomela quadriguttata Fabricius, 1781. lectotype, ♂ (Kiel). A. Dorsal view. B. Ventral view. C. Lateral view. D. Frontal view. E. Labels of lectotype and paralectotype. Scale bars = 1 mm.

Fig. 8. Chrysomela quadriguttata Fabricius, 1781. paralectotype, ♀ (Kiel). A. Dorsal view. B. Ventral view. C. Lateral view. D. Frontal view. Scale bars = 1 mm.