Acentroptera Guérin-Méneville 1844

Staines, C. L., 2014, A revision of the genus Acentroptera Guérin-Méneville, 1844 (Coleoptera: Chrysomelidae: Cassidinae), Insecta Mundi 2014 (332), pp. 1-19 : 2

Acentroptera Guérin-Méneville 1844

Acentroptera Chevrolat 1836: 388 (nomen nudum). Baly 1858: 121 (type species); Chenu and Desmarest 1870: 341 (noted); Chapuis 1875: 307 (redescription).

Acentroptera Guérin-Méneville 1844: 271 . Type species: Acentroptera dejeanii Guérin-Méneville , designated by Staines 2010. Staines 2010: 1 (nomenclature).

Acenthroptera Thomson 1856: 479 (unjustified emendation).

Acentroptera Baly. Gemminger and Harold 1876: 3608 (misattribution, catalog); Chenu 1884: 341 (noted); Donckier 1899: 568 (catalog); Weise 1910: 115 (noted), 1911a: 19 (catalog), 1911b: 26 (catalog); Monrós and Viana 1947: 191 ( Argentina species); Guérin 1953: 100 (faunal list); Papp 1953: 50 (catalog); Uhmann 1957: 65 (catalog), 1964a: 412 (catalog); Descarpentries and Villiers 1959: 144 (types); Wilcox 1975: 140 (catalog); Jolivet 1989: 304 (host plant); Jolivet and Hawkeswood 1995: 145 (host plants); Staines and Staines 1999: 522 (Baly species list); Staines 2002a: 746 (genera), 2002b: 1 (noted).

Generic description. Moderately sized (5.5-14.6 mm); body elongate; convex; subparallel or slightly expanding apically. Antenna: short; slender; with 11 antennomeres; antennomeres 1-6 or 7 punctate, each puncture with pale seta; 7- or 8 to 11 setose. Pronotum: transverse or quadrate, widest at base; disc highly convex; anterior angle with tooth; anterior margin straight; basal impression present. Scutellum: quadrate. Elytron: lateral margin straight or slightly expanding apically, smooth, margined; exterior apical angle rounded or angulate, not expanded laterally; apical margin with slight lamina; humerus angulate or rounded, slightly produced; with 10 regular rows of punctures plus short scutellar row, an additional row may be present between rows 5 and 6 in middle; with 4 costae, costa 3 or 4 may be obsolete in middle. Venter: with 5 visible abdominal sterna. Leg: short, robust; anterior pair not prolonged; protibia without tooth.

Acentroptera belongs to the tribe Sceloenoplini , which contains five genera ( Staines 2002a). Acentroptera can be distinguished from all other Sceloenoplini by the following combination of characters: body moderately convex; anterior pair of legs as long as other pairs; elytra with exterior apical angle not expanded laterally; and elytra is curved after interspace 6.