Physocoryna Guerin 1844a: 279

Synonomys

Physocoryna Chevrolat 1836: 389 Nomen nudum.

Phyzocoryna Chevrolat (misspelling).

Physocoryna Chapuis.

Type Species

Physocoryna scabra Guérin-Méneville.

Diagnosis

Physocoryna 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, vertexvertex:
  occupies the area behind and between the eyes
  without medial sulcus
• 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, surface with irregular pits
• the apex of the elytra without a tooth-like projection
• the elytra with 8 irregular rows of punctures for entire length and tuberculate
• the antennae short, clavate, with 7-antennomeres
• the prosternumprosternum:
  contains two anterior coxal cavities
  does not expand anteriorly to partly cover the mouth

Description

Body elongate, attenuate.

Head: small, medial sulcus absent; vertexvertex:
occupies the area behind and between the eyes
with triangular depression.

Antenna: very short, clavate; with 7‑antennomeres; antennomeres 1 to 3 similar in size, as wide as long or 3 slightly longer than 1 or 2; 4-6 transverse; 7 much wider, oval, with whorls of bristles, hirsute.

Pronotum: transverse; tooth present in anterior angle; tooth present on lateral margin; surface with irregular pits.

Elytron: parallel-sided, enlarged in exterior apical angle; lateral and apical margins serrate; apex almost truncate; surface with strong, confused punctures; puncture row 1 visible on basal ½, interrupted by tubercles; elytral sculpturing symmetrical.

Venter: prosternumprosternum:
contains two anterior coxal cavities
broad.

Leg: short; tarsi wide, tarsomere 1 short, 2 twice as large as 1, 3 as long as 1 and 2 combined, 4 slightly exceeds lobes of 3.

Distribution

Argentina, Brazil, Colombia, Costa Rica, French Guiana, Panamá, Paraguay.

World Fauna

Described species: 3 (Staines 2012). Key: Staines 1999b.

Hosts

Canavalia, Cymbosema, Dioclea, Phaseolus (Fabaceae); Stigmatophyllum (Malphigiaceae).

References

Chevrolat, L. A. A. 1836. in P. F. M. A. Dejean, Catalogue des Coléoptères de la collection de M. le comte Dejean. Troisième edition, revue, corrigée et augmentée, livr. 5, pp. 385‑503. Mequignon-Marvis. Paris.

Guérin‑Méneville, F. E. 1844. Iconographie du regne animal de G. Cuvier, vol. 7, insectes, 576 pp., 104 pls. J. B. Baillière. Paris.

Staines, C. L. 1999b. A review of the genus Physocoryna Guèrin-Mèneville, 1844 (Coleoptera: Chrysomelidae: Hispinae). Journal of the New York Entomological Society 106(4):163-169.

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