Dactylosternum Wollaston, 1854

Fikáček, Martin & Gimmel, Matthew L., 2017, On the identity of Sternosternus grouvellei Guillebeau, 1894 (Coleoptera: Hydrophilidae, Phalacridae), Zootaxa 4237 (3), pp. 578-582 : 578-579

publication ID

https://doi.org/ 10.11646/zootaxa.4237.3.9

publication LSID

lsid:zoobank.org:pub:ED5AC604-F429-42AD-BD3C-A7705FDC9068

DOI

https://doi.org/10.5281/zenodo.6025458

persistent identifier

https://treatment.plazi.org/id/03C787BC-FFE7-FF98-89E0-F975FBF0FDA6

treatment provided by

Plazi

scientific name

Dactylosternum Wollaston, 1854
status

 

Dactylosternum Wollaston, 1854 View in CoL

Cercydium Klug, 1833: 160 (partim.).—Nomen nudum.

Trichopoda Brullé, 1835: 294 View in CoL .—Type species: Trichopoda cassidaeformis Brullé, 1835 (by monotypy). Secondary homonym of Trichopoda Latreille, 1825 View in CoL ( Diptera View in CoL : Tachinidae View in CoL ).

Dactylosternum Wollaston, 1854: 99 View in CoL .—Type species: Dactylosternum roussetii Wollaston, 1854 View in CoL (by monotypy).

Sternosternus Guillebeau, 1894 : ccvii. (Syn. nov.)—Type species: Sternosternus grouvellei Guillebeau, 1894 (by monotypy).

Macrocercyon Alluaud, 1899 View in CoL .—Type species: Trichopoda cassidaeformis Brullé, 1835 (replacement name for Trichopoda Brullé, 1835 View in CoL ).

Comments on spelling. The genus name is written as “ Stenosternus ” on the labels attached to the type specimen listed below ( Fig. 1F View FIGURE 1 ); this name means “narrow sternum” and corresponds to the characteristics of the genus provided by Guillebeau (1894) in the original description. The spelling “ Sternosternus ” used in the original description is probably a typographic error introduced by the typesetter. However, Sternosternus does not fulfill the requirements of Article 32.5 of the Code ( ICZN 1999), since there is not clear evidence in the original publication or subsequent publication of the author about the intention to name the genus according to its ventral morphology, and hence the name cannot be considered an incorrect original spelling. For that reason, Sternosternus is deemed the correct spelling of the name, according to the original description.

Comments on synonymy. Based on the combination of meso- and metaventrite forming a median sternal keel, mesoventrite fused with mesanepisterna, clypeus not excised anterior of eyes, labrum concealed under clypeus, and epipleuron wide throughout elytral length, Sternosternus belongs to the tribe Coelostomatini of the hydrophilid subfamily Sphaeridiinae . Within the Coelostomatini , Sternosternus corresponds to the genus Dactylosternum by the following characters (following Hansen 1991): antenna with 9 antennomeres, antennal club compact, elytron with 10 longitudinal series of punctures, lateral margin of elytra explanate posteriorly, first abdominal ventrite with median carina. Hence, we consider Sternosternus as a junior subjective synonym of Dactylosternum .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Hydrophilidae

Loc

Dactylosternum Wollaston, 1854

Fikáček, Martin & Gimmel, Matthew L. 2017
2017
Loc

Dactylosternum

Wollaston 1854: 99
1854
Loc

Trichopoda Brullé, 1835 : 294

Brulle 1835: 294
1835
Loc

Cercydium

Klug 1833: 160
1833
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