Monarthrum costatum

Genus / Species: Monarthrum costatum | Image Author: SM Smith | Location: Brazil, Bahia, Bahia (estado) | Image Type: lectotype | Collection: Entomology

Eggers described this species from 3 syntypes: a male and female on the British Museum and a male specimen kept in his own collection. The verbatim text translates as ‘Types (male, female) in British Museum, male cotype in my collection.’ By standards of the ICZN these are all syntypes given that cotype has never had any status within the code other than as syntype or paratype. Given that Eggers did not explicitly designate a single specimen, all 3 have equal status in nomenclature. Anderson & Anderson (1971: 10) designated the male specimen from Egger’s collection as the lectotype, thereby conferring the status of paralectotypes on the specimens in the British Museum. Wood & Bright (1992: 1063) disregarded the action by Anderson & Anderson and cited “syntypes” in the BMNH. Wood (2007: 754) cited the male paralectotype in the BMNH as the ‘holotype’ which is totally without any basis. Anderson & Anderson’s original lectotype designation is correct.

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