Cosmotomidius setosus ( Audinet-Serville, 1835 )

Nascimento, Francisco E. de L., Santos-Silva, Antonio & Barclay, Maxwell V. L., 2019, On the tribal allocation of Cosmotomidius Melzerı 1931 ı descriptions of new taxa of Acanthoderini and notes on some tribes of Lamiinae (Coleoptera: Cerambycidae), Journal of Natural History 53 (11), pp. 705-723 : 710-711

On Cosmotomidius setosus ( Audinet-Serville, 1835)

Pogonocherus setosus Audinet-Serville, 1835: 58 . Cosmotomidius setosus ; Monné, 2018: 844 (cat.). ( Figures 1 (e – h), 5(a – d))

Audinet-Serville (1835) described Pogonocherus setosus , without indicating the type locality (he just reported ‘ exotic ’). However, the publication ( Audinet-Serville 1835) recorded: ‘ * Pogonocherus setosus , DEJ. Collect. ’ The asterisk is explained in an earlier work, Audinet-Serville (1832) (translated): ‘ The new genera, as well as new species, will be indicated by an asterisk ’. We believe that Audinet-Serville (1835) was indicating the specimens labelled in the Dejean collection. This appears evident when we see, for example, the original description of Hemiloplius dimidiaticornis : ‘ Hemilophus dimidiaticornis . – Saperda dimidiaticornis, Dej. Collect. ’ (described as H. dimidiaticornis by Audinet- Serville, and present in Dejean collection as S. dimidiaticornis ).

Dejean (1835, p. 339) listed Exocentrus setosus as being from ‘ Brasilia ’. This is another evident indication that Audinet-Serville examined the Dejean collection, since according to the Bishop Museum (2015), pages 1 – 195 of volume 4(1) of the Annales de la Société Entomologique de France (including Serville ’ s paper) were published before June 1835, while according to Bousquet and Bouchard (2013) pages 257 – 360 of the Dejean catalogue were published on 22 August 1835.

Although the species appears in the Dejean catalogue (1835) as ‘Exocentrus’, the label of the specimen indicates that ‘Pogonocherus’ was changed to ‘Exocentrus’ ( Figure 5 (b)). Apparently , when Audinet-Serville examined the specimen in Dejean collection it was labelled as ‘ Pogonocherus’. A specimen ( Figure 5 (a,b) from Dejean collection, currently deposited in the BMNH (former Louis A.A. Chevrolat collection) is a syntype of Pogonocherus setosus ( ICZN 1999 : Article 72.4.1.1). There is another specimen ( Figure 5 (c,d)) in the BMNH from the Alexander Fry collection (previously in the La Ferté-Sénectère and Dejean collections). However , it is not possible to know whether this specimen was in the Dejean collection at the time that Audinet-Serville examined it. Thus , it is cannot with certainty be considered a syntype.

Audinet-Serville (1835) mentions, as well as material in the Dejean collection, a specimen of P. setosus in his private collection, but this could not be found.

As the species is the type species of Cosmotomidius , it is important to designate a lectotype, and we accordingly here designate the syntype from the former Dejean collection, the only specimen that can be traced that is certainly a syntype, as lectotype of the species. The lectotype ( Figure 5 (a)) has the following labels ( Figure 5 (b)):

(1) Green [handwritten]: Lacordaire;

(2) White [printed]: Bowr. Chevr. 63.47*;

(3) Green [handwritten]: Pogonocherus [cancelled]/ Exocentrus setosus mihi/h. in Brasilia;

(4) Red [printed]: Probable Syntype /det. MVL Barclay 2018;

(5) White [printed]: NHMUK 011222569.

Therefore, the type locality of Pogonocherus setosus becomes ‘ Brazil ’.

Figures

Figure 1. (a–d) Noxnympha eris, holotype female: (a) dorsal habitus; (b) ventral habitus; (c) lateral habitus; (d) head, dorsal view. (e–h) Cosmotomidius setosus, male: (e) dorsal habitus; (f) ventral habitus; (g) lateral habitus; (h) head, dorsal view.

Figure 5. Cosmotomidius setosus: (a,b) lectotype: (a) dorsal habitus; (b) labels. (c,d) Cosmotomidius setosus, specimen deposited at BMNH, former Fry collection: (c) dorsal habitus; (d) labels.