Xenispa, Baly, 1859

Sekerka, Lukáš, 2017, Taxonomic changes within Imatidiini and Hybosispini (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 351-380 : 374-375

Key to Venezuelan species of Xenispa

1 Pronotum of the same colour as elytra, legs black or metallic. Small species, length below 4 mm with narrow margin of elytra. ................................................................... 2

– Pronotum, head, fore- and mid-legs yellow. Large species, length 6.0– 7.5 mm with broadly explanate margin of elytra ( Fig. 18 ). .................................. X. fouquei sp. nov.

2 Lateral margins of pronotum strongly swollen, broad and separated by a deep sulcus from the disc. Dorsum metallically coloured. ............................................................... 3

– Lateral margins of pronotum narrow and separated by shallow sulcus from the disc. Dorsum pitch-black, pronotum somewhat paler coloured ( Fig. 15 ). ............................... ............................................................................................................ X. atra (Pic, 1926)

3 Pronotum narrower, 1.4–1.5× as wide as long. Swollen lateral margin of pronotum of the same width, narrowing only anteriorly. Elytra black with greenish or antracite metallic tint. .......... 4

– Pronotum broader, 1.7× as wide as long. Swollen lateral margin of pronotum distinctly narrowed at base and anteriorly. Elytra very dark brown with bluish metallic tint. ........ ..................................................................................................................... Xenispa sp. 1

4 Pronotum shiny, microreticulation centrally vanished and more or less visible only laterally. Elytra metallic antracite. .................................................... X. carinata ( Pic, 1934)

– Pronotum subopaque due to more prominent microreticulation. Elytra very dark olivegreen ( Fig. 8 ). .................................................................... X. aeneipennis ( Baly, 1859)

Figures

Figs 15–22. 15 – Cephaloleia cyanea Staines, 1996 (holotype, 4.0 mm); 16 – Xenispa gilvipes (Uhmann, 1930) (holotype, 4.4 mm); 17 – Xenispa pulchella Baly, 1859 (holotype, 7.7 mm); 18 – Xenispa fouquei sp. nov. (♂ paratype from the type locality, 6.9 mm); 19 – Xenispa argentina (Monrós & Viana, 1947) (holotype, 5.1 mm); 20 – Hybosispa delectabilis (Staines, 1996) (holotype, 3.9 mm); 21 – Hybosispa sulciceps (Baly, 1885) (syntype, BMNH, 3.1 mm); 22 – Hybosispa truncatipennis (Baly, 1869) (holotype, 6.75 mm).

Figs. 1–8. 1 – Cephaloleia apertura (Staines, 2013) (holotype, 4.3 mm); 2 – Cephaloleia atripes (Pic, 1926) (holotype, 5.1 mm); 3 – Cephaloleia fernandoi (Bondar, 1940) (paratype, LSPC, 6.3 mm); 4 – Cephaloleia opaca Baly, 1859 (Rio de Janeiro: Trinidad, LSPC, 6.0 mm); 5 – Cephaloleia impressa Uhmann, 1930 (holotype, 3.5 mm); 6 – Demothispa clermonti Pic, 1934 (holotype, 3.5 mm); 7 – Cephaloleia jataiensis (Pic, 1923) (holotype, 4.2 mm); 14 – Xenispa aeneipennis (Baly, 1859) (holotype, 3.7 mm).