None.
Cassida nigricornis Germar.
Calyptocephala can be distinguished by the following combination of characters:
Head: rounded, visible dorsally; front subconvex; clypeusclypeus:
usually quadrangular, elongate; joined to the labrum
transverse, upper margin curved, overlapping antennal base; labrumlabrum:
triangular, joined to the clypeus and the oral orifice
large, slightly wider than long, apical margin truncate, with medial longitudinal carina; maxillary palps with apical palpomere oblong, longer than preceding; eyeeye:
elongate, slightly prominent, multifaceted; usually slightly kidney-shaped
oval, slightly convex.
Antenna: filiform; ½ length of body; with 11-antennomeres; antennomere 1 oblong, obconic; 2 thinner and shorter than 1; 3 twice as long as 2; remainder gradually decreasing in length.
Pronotum: twice as wide as long, at base narrower than base of elytra, convex; anterior margin slightly emarginate, angles of emargination obtuse; anterior angle rounded, with seta on cone in anterior and posterior angle; lateral margin curved, convergent anteriorly; posterior margin almost straight.
Scutellum: elliptical.
Elytron: subtriangular or suboval, wide basally, narrowed and rounded apically, convex; humerus prominent, subacute; with 10 rows of shallow, regular punctures, scutellar row absent; no costae.
Venter: prosternumprosternum:
contains two anterior coxal cavities
with apex notched, narrowed between coxae, dilated apically, truncate basally, projecting forward to partly cover mouth; abdomenabdomen:
with five visible sternites
with suture between sterna 1 and 2 obsolete in middle.
Leg: tibiatibia:
variable in length; joins femur and tarsus
rounded, notched on apical ⅓, exterior margin subangulate; tarsustarsus:
each with five tarsomeres, penultimate degenerated. Last tarsomere with claws. Basal tarsomere small, triangular; second bilobed, larger than first; third larger than second, with two pronounced lobes; last tarsomere more or less conical, with one or two curved claws at distal end; segments 1 to 3 flattened, with dense pubescence on lower surface.
wide, tarsomere 1 narrower than rest, 4 little longer than lobes of 3; claws simple, divaricate.
Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guyana, Guatemala, México, Nicaragua, Panamá, Paraguay, Peru, Suriname, Trinidad, and Venezuela.
Number of species: 11 (Staines 2012). Key to species: Wagener (1881) covered 6 species.
Arecastrum, Astrocaryum, Chamaedorea, Elaeis (Arecaceae); Dioscorea (Dioscoreaceae); Chusquea (Poaceae).
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.
Staines, C. L. 2012. Tribe Spilophorini. Catalog of the hispines of the world (Coleoptera: Chrysomelidae: Cassidinae). http://entomology.si.edu/Collections_Coleoptera.html
Wagener, B. 1881. Cassididae. Mitteilungen der Müncher Entolomogischen Vereins 5:17-85.