Pachybrachis Chevrolat, 1836

Agrain, Federico A., Chamorro, Maria Lourdes, Cabrera, Nora, Sassi, Davide & Roig-Junent, Sergio, 2017, A comprehensive guide to the Argentinian case-bearer beetle fauna (Coleoptera, Chrysomelidae, Camptosomata), ZooKeys 677, pp. 11-88 : 49-50

Pachybrachis Chevrolat, 1836 Fig. 27

Pachybrachis : Chevrolat, 1836: 420.

= Pachybrachis Redtenbacher, 1845.

= Pachystylus Rey, 1883.

Pachybrachys : Mannerheim 1843: 311. Incorrect subsequent spelling.

Type species.

Cryptocephalus hieroglyphicus Laicharting, 1781. By subsequent designation of Jacoby 1908: 265.

Diagnosis.

Posterior margin of intercoxal prosternal process relatively entire, rarely produced beyond posterior margin of prothorax; gestalt cylindrical (height of each elytron approximately 2.5 width), pronotum narrower than elytral bases combined, overall flattened not vaulted; punctation on head, prothorax and elytra evident, large; elytral punctation commonly confused (but punctation in rows not uncommon); fore-femora may or may not be enlarged; mesotibiae usually with terminal spur in both sexes.

Distribution.

Neartic, Neotropical, Palearctic, and Oriental regions.

Remarks.

A subgeneric classification exists for Palearctic species, Neotropical species have not yet been assigned to subgenera.

Argentinian species checklist.

1. Pachybrachis foetidus Suffrian, 1866 (BAS)

2. Pachybrachis gayi Blanchard, 1851 (ARGENTINA). Host plant: Fagaceae : Nothofagus and Castanea (Jolivet, 1978).

3. Pachybrachis mysticus Suffrian 1866 (BAS, LPA). Host plant: Fabaceae : Prospis caldenia ( Aravena 1974).

4. Pachybrachis nigronotatus Boheman, 1858 (BAS)

5. Pachybrachis xanthogrammus Suffrian, 1866 (CTS, ERS).