Hispines of the World

 

Plesispa Chapuis 1875: 290

 

Synonomys

 

None.

Type Species

 

Plesispa reichei Chapuis.

Diagnosis

 

Plesispa can be distinguished by the following combination of characters:

  • lateral margin of pronotum and elytra without long, stiff spines
  • head with narrow frontal horn ½ length of antennomere 1, with small lamina visible from above below antennal bases
  • antennomere 1 without spine-like process
  • pronotum with anterior angles oblique, each anterior angle with seta
  • elytra with 8 rows of punctures plus scutellar row basally, 10 rows apically
  • prosternum with anterior margin not expanding forward

Description

 

Body elongate; subparallel; subdepressed; color brown with some black; total length 5.0 to 9.0 mm.

Head: small; cephalic plate quadrate; frontal horn elongate, narrow, rounded at apex, ½ length of antennomere 1; with small lamina visible from above below antennal bases; labrum short, emarginate; eye large, convex.

Antenna: filiform; reaches to humerus; with 11-antennomeres; antennomere 1 subincrassate; 2 and 3 subequal in length, cylindrical; 4 to 10 subequal in length, each shorter than 3; 11 longer than 10, pointed at apex.

Pronotum: transverse; lateral margin straight at base, then sharply angulate and converging to anterior angle; anterior angle oblique, with tooth and seta; anterior margin weakly curved; posterior angle acute; posterior margin bisinuate; surface punctate.

Scutellum: small; cordate.

Elytron: lateral margin straight, smooth; exterior apical angle rounded; apical margin rounded; humerus angulate, not produced; with 8 rows of deep punctures plus scutellar row basally, 10 rows apically; tricostate.

Venter: prosternum with anterior margin not expanding forward.

Leg: short; femur thickened; tibia emarginate apically.

Distribution

 

Australia, Indonesia, Malaysia, New Britain, New Guinea, Philippines, Sri Lanka, Thailand.

World Fauna

 

Described species: 7 (Staines 2012). Key: Gressitt 1957b, 1960a, 1963a.

Hosts

 

Calamus (Areceae); Archontophoenix, Areca, Arenga, Cocos, Cyrtostachys, Daemonorops, Heterospaethe, Korthalsia, Metroxylon, Nipa, Rhopaloblaste? (Arecaceae); Flagellaria (Flagellariaceae); Saccharum (Poaceae).

References

 

Chapuis, F. 1875. in J. T. Lacordaire, Histoire naturelle des insectes. Genera des Coléoptères, Vol. 11, Famille des Phytophages, 420 pp. Encylopédique de Roret; Paris.

Gressitt, J. L. 1957b. Hispine beetles from the South Pacific (Coleoptera: Chrysomelidae). Nova Guinea n. s. 8:205‑324.

Gressitt, J. L. 1960a. Papuan-West Polynesian hispine beetles (Chrysomelidae). Pacific Insects 2:1-90.

Gressitt, J. L. 1963a. Hispine beetles (Chrysomelidae) from New Guinea. Pacific Insects 5:591‑714.

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

 

last updated April 2014
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