Fabrician types of Cassidinae (Coleoptera: Chrysomelidae) deposited in the Natural History Museum, London Author Sekerka, Lukáš Department of Entomology, National Museum, Prague, Cirkusová 1740, CZ- 193 00, Praha, Czech Republic & Department of Zoology, Faculty of Science, University of South Bohemia, Branišovská 31, CZ- 370 05, ýeské BudČjovice, Czech Republic sagrinae@seznam.cz Author Barclay, Maxwell V. L. The Natural History Museum, Cromwell Rd, London SW 7 5 BD, United Kingdom m.barclay@nhm.ac.uk text Acta Entomologica Musei Nationalis Pragae 2014 2014-12-15 54 2 657 684 journal article 20305 10.5281/zenodo.5302244 f2b4ae7c-2446-4042-b918-73e3bbf624f3 0374-1036 5302244 A31F43C0-F570-40B1-9C7B-E672FDBCE1BFD Cassida bidens Fabricius, 1781 ( Figs 1–3 ) Cassida bidens Fabricius, 1781: 112 . Type locality. ‘Brasilia’. Type material examined. SYNTYPE : pinned, ‘ Cassida bidens | Fabr. Spec. 112. n. 32 [w, hw, s, bf]’ ( BMNH ). Status in ZIMSEN (1964) . P. 91; No. 1345. ‘London, 1 specimen’. Original description. ‘C. atra, elytris antice porrectis, spina suturali erecta. Habitat in Brasilia. Mus. Dom. Banks . Magna. Thoracis clypeus rotundatus, subemarginatus dorso carinato niger maculis duabus ferrugineis obsoletis. Elytra reticulata, atra, immaculata, basi ultra caput porrecta, carinata, spinaque in medio suturae elongata, acuta, atra nitida. Corpus atrum femoribus anticis intus pallidis.’ ( FABRICIUS 1781 ). Current status. Dorynota ( Dorynota ) bidens ( Fabricius, 1781 ) . Remarks. The species was described from Banks’s collection and ZIMSEN (1964) reported only a single specimen in BMNH, probably the only specimen Fabricius had for description. Dorynota bidens has been correctly identi¿ed since its description. There is only one similar species, D. nigra ( Boheman, 1856 ) , which differs in its uniformly black dorsum with a dark green metallic sheen and a shorter dorsal spine, while D. bidens has dorsum black without metallic sheen and with a small reddish spot on the lateral slope of each elytron, and a long dorsal spine.