Hispines of the World


Mecistomela Jacobson 1899: 246





Type Species


Alurnus marginata Thunberg.



Mecistomela can be distinguished by the following combination of characters:

  • the lateral margin of the pronotum and the elytra lacking long, stiff spines
  • the head lacking a frontal horn
  • the pronotum having a tuft of setae in each angle
  • the antennae having 11-antennomeres, subserrate, with antennomere 4 nearly as long as 3
  • the elytral punctures being large, rugose
  • the elytra lacking costae
  • the elytra being subparallel



Body large (23-34 mm), elongate ellipse.

Head: flat or slightly convex between eyes; frons with small depressions on anterior margin; interantennal keel absent; sulci near eye faint; punctation dense and irregular.

Antenna: with 11-antennomeres, short, sparsely pubescent, each antennomere with ventral asymmetrical apical expansion which diminishes in size from base to apex; antennomere 4 almost as long as 3.

Pronotum: transverse, slightly narrowing anteriorly; lateral margins almost parallel; densely punctate; slight basal impression present on each side of middle; with tuft of setae in each angle.

Scutellum: triangular.

Elytron: wider than pronotum; finely, densely punctate, punctures not in regular rows; no costae; margined laterally.

Leg: trochanters with tufts of setae.

Black, pronotum and elytra with orange markings.




World Fauna


Number of species: 1 (Staines 2012). Key to the species: Fischer (1935).



Alagoptera, Copernicia, Cocos, Diplothemium, Elaeis, Lantania, Livistona, Phoenix (Arecaceae).



Fischer, C. R. 1935. Os coleopteros phytophagos da tribu Alurnini, pragas das palmeiras (Chrysomelidae, Hispinae). Revista de Entomologica Rio de Janiero 5:257-292.

Jacobson, G. G. 1899. De genere Alurno (Coleoptera, Chrysomelidae). Annuaire du Musée Zoologique de l'Académie Impériale des Sciences St. Pétersbourgh 4:245-256.

Staines, C. L. 2012. Tribe Alurnini. Catalog of the hispines of the world (Coleoptera: Chrysomelidae: Cassidinae). http://entomology.si.edu/Collections_Coleoptera.html


Content last updated April 2014