Published August 14, 2023 | Version v1

Ptinini

  • 1. Forestry and Game Management Research Institute, Strnady 136, CZ- 252 02 Jíloviště, Czech Republic
  • 2. Mendel University in Brno, Faculty of Forestry and Wood Technology, Department of Forest Ecology, Zemědělská 3, CZ- 613 00 Brno, Czech Republic & Municipal Museum of Ústí nad Labem, Natural History Department, Masarykova 1000 / 3, CZ- 400 01 Ústí nad Labem, Czech Republic
  • 3. Mention Entomologie - Culture, Elevage et Santé (E-CES), Faculté des Science, Université d'Antananarivo, BP 906, Antananarivo 101, Madagascar

Description

Key to the genera of the tribe Ptinini from Madagascar, Mascarenes and adjacent regions

1 Pronotum with one distinct central bump; species rather slender, ratio of length to width of elytra 1.4–1.6; without sexual dimorphism.......................................................................................... 2

- Pronotum with two lateral bumps; species more robust, wide, ratio of length to width of elytra 1.5–2.0; with sexual dimorphismfemales slightly wider.................................................................................. 3

2 Pronotum with more or less distinct lateral depressions on the sides of central bump................................................................................................................ Xylodes Waterhouse, 1876

- Pronotum with only distinct central bump, without lateral depression........................ Trymolophus Bellés, 1990

3 Two lateral bumps distinct; species without sexual dimorphism, ratio of length to width of elytra 1.5–2.0................................................................................................. Sulcoptinus Bellés, 1988

- Two lateral bumps indistinct, but visible; species with feeble sexual dimorphism (shape of body—ratio of length to width of elytra 1.5–2.0 in male, ratio of length to width of elytra 1.5–1.7 in female)....... Ptinus (Gynopterus) Mulsant & Rey, 1868

Notes

Published as part of Zahradník, Petr, Trýzna, Miloš & Razafindranaivo, Victor, 2023, A new species of Xylodes Waterhouse from Madagascar, with a key to the genera of the tribe Ptinini from Madagascar, Mascarenes and adjacent regions, and a key to species of Xylodes, subgenus Diegous (Coleoptera: Ptinidae), pp. 93-105 in Zootaxa 5330 (1) on page 95, DOI: 10.11646/zootaxa.5330.1.4, http://zenodo.org/record/8249187

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Linked records

Additional details

Biodiversity

References

  • Waterhouse, C. O. (1876) New species of Coleoptera from the island of Rodriguez collected by the naturalists accompanying the Transit-of-Venus Expedition. The Annals and Magazine of Natural History, Series 4, 18, 105 - 121. https: // doi. org / 10.1080 / 00222937608682018
  • Mulsant, E. & Rey, C. (1868) Histoire naturelle des Coleopteres de France. Gibbicolles. Deyrolle, Naturaliste, Paris, 224 + 16 pp., xiv pls.