Hispines of the World

 

Octotoma Chevrolat 1836: 390

 

Synonomys

 

Octotoma Dejean.

Octotoma Suffrian.

Type Species

 

Hispa plicatula Fabricius.

Diagnosis

 

Octotoma can be distinguished by the following combination of characters:

  • the lateral margins of the pronotum and the elytra without long, stiff spines
  • the head without a frontal horn
  • the pronotum with a seta in each anterior angle
  • the apex of the elytra without a tooth-like projection
  • the elytra with 8 or 10 rows of punctures, some species with 3 regular costae, others with lateral and transverse carinae which are almost tuberculate, humerus rounded
  • the antennae thickened at apex, short, clavate, with 8-antennomeres, antennomere 7 as wide as 8
  • the prosternum does not expand anteriorly to partly cover the mouth
  • tarsomere 3 bilobed

Description

 

Body wedged‑shaped.

Head: medial sulcus present or absent.

Antenna: with 8‑antennomeres; reaching to base of pronotum; antennomere 1 subglobose; 7 as wide as 8; 8 oval, subacute at tip.

Pronotum: transverse; tooth present in anterior angle; margined laterally; four depressions present, two before and two after midline.

Elytron: with 8 or 10 rows of punctures plus scutellar row; costae may be developed; some species with transverse and lateral carinae, these species having asymmetrical sculpture.

Leg: femur distinctly sinuate beneath near apex; tibia curved at base, protibia more dilated than others and with outer edge sinuate; tarsomeres dilated, densely pubescent beneath, tarsomere 1 small, 2 twice as long as wide, 3 longer than 2 and deeply bilobed, 4 little longer than lobes of 3; claws divergent.

Distribution

 

Belize, Brazil, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, México Nicaragua, Panamá United States.

Introduced into: Australia, Cook Islands, Fiji, Ghana, Guam, Hawaii, India, New Caledonia, Solomon Islands, South Africa.

World Fauna

 

Described species: 10 (Staines 2012). Key: Staines 1989b, 1994c, 1996(1997), 2006b.

Hosts

 

Perezia (Asteraceae); Campsis (Bignoniaceae); Lantana (Verbenaceae).

References

 

Chevrolat, L. A. A. 1836. in P. F. M. A. Dejean, Catalogue des Coléoptères de la collection de M. le comte Dejean. Troisième edition, revue, corrigée et augmentée, livr. 5, pp. 385‑503. Mequignon-Marvis. Paris.

Staines, C. L. 1989b. A revision of the genus Octotoma (Coleoptera: Chrysomelidae, Hispinae). Insecta Mundi 3:41‑56.

Staines, C. L. 1994c. A new species of Octotoma Chevrolat, 1837 from Guatemala (Coleoptera: Chrysomelidae: Hispinae). Journal of the New York Entomological Society 102(2):249-250.

Staines, C. L. 1996(1997). The Hispinae (Coleoptera: Chrysomelidae) of Nicaragua. Revista Nicaragüense de Entomología 37/38:1-65.

Staines, C. L. 2006b. The hispine beetles (Coleoptera: Chrysomelidae: Cassidinae) of America north of Mexico. VirginiaMuseum of Natural History Special Publication Number 13. 178 pp.

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

 

Key player updated January 2018; content updated April 2014
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