Nanocthispa Monros & Viana 1947: 312

Synonomys

None.

Type Species

Octhispa atra Weise.

Diagnosis

Nanocthispa can be distinguished by the following combination of characters:

• 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
• 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
• the apex of the elytra without a tooth-like projection
• the elytra with 8 rows of punctures for entire length plus a short scutellar row
• the antennae thickened at apex, not clavate, with 7-antennomeres, antennomere 7 slightly pointed at apex, 2 1.5x length of 1
• the prosternumprosternum:
  contains two anterior coxal cavities
  does not expand anteriorly to partly cover the mouth

Description

Head: vertexvertex:
occupies the area behind and between the eyes
finely punctate; opaque; with very fine pubescence; fronsfrons:
upper anterior portion of head capsule above the clypeus
depressed, concave, with some sulci; clypeusclypeus:
usually quadrangular, elongate; joined to the labrum
large, flat, less densely punctate than rest of head, subquadrate; eyeeye:
elongate, slightly prominent, multifaceted; usually slightly kidney-shaped
small, with carina behind.

Antenna: short, with 7‑antennomeres; antennomere 2 1.5x the length of 1.

Pronotum: subcylindrical; transversely convex.

Scutellum: small, quadrangular; angle rounded.

Elytron: parallel-sided; apex conjointly rounded, with 2 small teeth; with 8 rows of punctures plus scutellar row; tricostate, all unite at apex.

Distribution

Argentina.

World Fauna

Described species: 1- Nanocthispa atra (Weise) (Staines 2012).

Hosts

Unknown.

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