Hispines of the World

 

Stenopodius Horn 1883: 301

 

Synonomys

 

None.

Type Species

 

Stenopodius flavidus Horn.

Diagnosis

 

Stenopodius 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,
  • the antennae short, clavate, with 8-antennomeres, antennomere 7 narrower than 8
  • the prosternum does not expand anteriorly to partly cover the mouth
  • tarsomere 3 not bilobed

Description

 

Head: small; vertex not prominent; frons vertical; eye large, oval, facets numerous.

Antenna: clavate, short, extends a short way beyond apical margin of pronotum, 8-antennomeres; antennomere 8 oval, pointed at apex.

Pronotum: wider than long; in most species apex more or less prolonged (lobed) at middle and sinuate at each side; base wider than apex, broadly lobed, sinuate laterally, overlapping base of elytron, except in middle.

Scutellum: subquadrate; apex truncate, feebly arcuate or slightly emarginate.

Elytron: oblong‑oval; about ½ longer than wide; parallel-sided and broadly rounded in apical ¼; lateral and apical margins more or less serrulate; 8 or 10 rows of large, circular punctures.

Leg: glabrous; metafemur slightly longer than tibia; tarsomeres not dilated, with pale setae beneath, first 3 tarsomeres subequal, 3 emarginate above, 4 as long as 1 to 3 combined; claws feebly arcuate.

Distribution

 

Canada, México, United States.

World Fauna

 

Described species: 7 (Staines 2012). Key: Blaisdell 1939, Staines 2006b.

Hosts

 

Sphaeralcea (Malvaceae).

References

 

Blaisdell, F. E. 1939. A study of the species of Hispinae belonging to the genus Stenopodius with descriptions of new species. Transactions of the American Entomological Society 64:421‑447.

Horn, G. H. 1883. Miscellaneous notes and short studies of North American Coleoptera. Transactions of the American Entomological Society 10:269‑312.

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

 

last updated April 2014
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