Hispines of the World

 

Coelaenomenodera (s. str.) Blanchard 1845: 181

 

Synonomys

 

Diplocoeloma Thomson 1857b: 226.

Type Species

 

Coelaenomenodera cucullata Guérin-Méneville.

Diagnosis

 

Coelaenomenodera (Coelaenomenodera) can be distinguished by the following combination of characters:

  • lateral margin of pronotum and elytra without long, stiff spines
  • head without frontal horn between antennae
  • pronotum with seta in each angle, flattened, never constricted basally, anterior margin projecting forward over head, with 1 to 3 deep depressions, anterior ½ glabrous
  • anterior margin of prosternum not projecting forward, not partly covering mouth
  • less than 14 mm in length
  • antennae with 11-antennomeres, antennomere 3 shorter than 1 and 2 combined, apical antennomeres without sensory pits on lower surface
  • elytra with interspaces 3, 5, and 7 partly costate

Description

 

Elongate; parallel-sided; convex; color varies from yellow, brown, red, to black; length 3.5 to 11.0 mm.

Head: large; frons simple, slightly convex; labrum very short; maxillary palps very short, palpomere 1 small, 2 and 3 obconic, 3 shorter than 2; 4 oval; eye oval, slightly convex.

Antenna: reaches to base of pronotum, dilated apically; with 11-antennomeres; antennomere 1 subglobose; 2 oblong, thinner and longer than 1; 3 longest, shorter than 1 and 2 combined; 4 to 7 subequal in length; 8 to 11 dilated; 11 obtusely rounded, without sensory pits on lower surface.

Pronotum: longer than wide; lateral margin straight; anterior margin with triangular projection over head; posterior margin bisinuate; posterior angle acute; surface with 1 to 3 deep depressions; anterior ½ glabrous.

Scutellum: oblong, rounded at apex.

Elytron: lateral margin straight, smooth, narrowly margined; exterior apical angle rounded; apex rounded; with 10 rows of punctures; interspaces 3, 5, and 7 partly costate.

Venter: prosternum narrow, convex between coxae, basal margin not projecting toward mouth; mesosternum transverse, concave.

Leg: short; robust; tibia curved, obliquely truncate at apex.

Distribution

 

Cameroon, Congo, Equatorial Guinea, Gabon, Ghana, Ivory Coast, Kenya, Madagascar, Nigeria, Sierra Leone.

World Fauna

 

Described species: 40 (Staines 2012). Key: none.

Hosts

 

Borassus, Cocos, Elaeis (Arecaceae).

References

 

Blanchard, C. E. 1845. Histoire des insectes, traitant de leurs moeurs et de leurs métamorhoposes en général, et comprenant une nouvelle classification fondée sur leurs rapports naturels. Vol. 2. F. Savy. Paris. 524 pp.

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

Thomson, J. 1857b. Voyage au Gabon. Archives Entomologiques 2:7-376.

 

Content last updated April 2014
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