Caloclada Guérin-Méneville, 1844

Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae 54 (1), pp. 257-314 : 272

Caloclada Guérin-Méneville, 1844 , stat. restit.

( Fig. 25 )

Cladophora Dejean, 1836: 366 (nomen nudum).

Caloclada Guérin-Méneville, 1844: 284 . Type species: Caloclada fasciata Guérin-Méneville, 1844 , designated here.

Octocladiscus Thomson, 1856: 480 , syn. nov. Type species: Octocladiscus Àabellatus Thomson, 1856 = Caloclada fasciata Guérin-Méneville, 1844 , by monotypy.

Distinguishing characters. Caloclada is a very characteristic genus in the form of its antennae. The antennae show strong sexual dimorphism in the shape of antennomeres IV–X, being pectinate in males ( Fig. 25 ) and triangular in females. Several Cephaloleia species also have sexually dimorphic antennae, however, these have only some of the ¿ve basal antennomeres (usually III–V) triangular in males and elongate in females.

Remarks. GUÉRIN- MÉNEVILLE (1844) proposed the name Caloclada as a replacement for Cladophora Dejean 1836 , which was preoccupied. Moreover, Dejean’s Cladophora is invalid because the original publication contained neither a description nor any valid species name associated with the genus. GUÉRIN- MÉNEVILLE (1844) clearly stated that he is giving the name Caloclada for Cladophora sensu Dejean and included two valid species, Caloclada fasciata Guérin-Méneville, 1844 and C. Àabellata Guérin-Méneville, 1844, noting that both species are possibly forms of a single species. THOMSON (1856) also pointed the homonymy of Cladophora Dejean and provided a new name, Octocladiscus , however, he did not mention Caloclada . BALY (1858) synonymized Caloclada with Octocladiscus , retaining the latter as the valid name and synonymizing all the included species under O. fasciatus ( Guérin-Méneville, 1844) . Subsequent authors (i.e. UHMANN 1957a, STAINES 2002) omitted Caloclada , and considered Cladophora as being validated by GUÉRIN- MÉNEVILLE (1844) through his species, and thus considered it as synonym of Octocladiscus because of homonymy of Cladophora . However, GUÉRIN- MÉNEVILLE (1844) validly described Caloclada . As Caloclada has no senior homonym, it must be considered as valid and having priority over Octocladiscus . I was not able to ¿nd any type species designation for Caloclada thus I designate here C. fasciata as the type species.

Number of species. Monotypic ( UHMANN 1957a).

Biology. So far, nothing is known about the biology of Caloclada .

Distribution. French Guyana.

Figures

Figs 25–28. Dorsal habitus and pygidia. 25 – Caloclada fasciata Guérin-Méneville, 1844, French Guyana: Mt. Kaw; 26–27 Parentispa formosa male and female last ventrite and pygidium; 28 – Lechispa parallela (Pic, 1930), pygidium in posterior view. Scale bars: Fig. 25 = 5 mm, Figs 26–28 = 0.5 mm.