Baliosus Weise 1905g: 64

Synonomys

Parabaliosus Monrós & Viana 1947: 254.

Type Species

Hispa nervosus Panzer.

Diagnosis

Baliosus can be distinguished by the following combination of characters:

• body wedge-shaped
• the lateral margins of the pronotumpronotum:
  occupies all of dorsal part of the prothorax; in anterior angles or posterior angles there may be a small tubercle or pore with a seta
  and the elytra without long, stiff spines
• the head without a frontal horn, not constricted behind eyes
• the pronotumpronotum:
  occupies all of dorsal part of the prothorax; in anterior angles or posterior angles there may be a small tubercle or pore with a seta
  with a seta in each anterior angle, finely margined, without lateral teeth
• the apex of the elytra without a tooth-like projection
• the elytra with 10 rows of punctures for entire length and 4 regular costae, costa 3 interrupted in middle, humerus rounded without spine or tooth, apices regularly rounded, sutural angel not emarginate
• the antennae thickened at apex, with 11-antennomeres
• leg with apical tarsomere bearing 2 claws
• anterior margin of prosternumprosternum:
  contains two anterior coxal cavities
  not expanding toward mouth
• abdominal sterna 1 and 2 without medial sulcus

Description

Wedge‑shaped, somewhat flattened.

Head: vertexvertex:
occupies the area behind and between the eyes
smooth or slightly punctate; not constricted behind eyes.

Antenna: with 11‑antennomeres; apical 5 antennomeres somewhat dilated.

Elytron: much wider at apex; apex obtuse or nearly truncate; with 10 rows of punctures plus scutellar row; 4 costae, costa 3 feebly interrupted in middle, oblique from umbone to 2nd or 3rd interval for a short distance forward; apices regularly rounded.

Leg: short to moderately long; mesotibia not curved.

Venter: abdominal sterna 1 and 2 without medial sulcus.

Distribution

Argentina, Bolivia, Brazil, Canada, Colombia, Costa Rica, El Salvador, French Guiana, Guatemala, México, Nicaragua, Panamá, Paraguay, Peru, United States, Venezuela.

World Fauna

Described species: 46 (Staines 2012). Key: Monrós & Viana 1947; Staines 2006b.

Hosts

Alnus (Betulaceae); Vernonia (Asteraceae); Arrabidea (Bignoniaceae); Cordia (Boraginaceae); Hippocrates (Celastraceae); Bauhinia (Caesalpiniaceae); Meibomia,Quercus (Fagaceae); Banisteria (Malphigiaceae); Olyra (Poaceae); Ceanothus (Rhamnaceae); Malus (Roseacae); Basanacantha (Rubiaceae); Guazuma (Sterculiaceae); Tilia (Tilaceae); Urtica (Urticaceae);Guaiacum (Zygophyllaceae).

References

Monrós, F. & M. J. Viana. 1947. Revisión sistemática de los Hispidae Argentinos (Insecta, Coleop. Chrysomeloid.). Anales del Museo Argentino Ciencias Naturales "Bernardino Rivadavia" 42:125-324.

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

Weise, J. 1905g. Beschreibung einiger Hispinen. Archiv für Naturgeschichte 71:49-104.