Schizodactylus Brulle , 1835

Heads, Sam W. & Leuzinger, Lea, 2011, On the placement of the Cretaceous orthopteran Brauckmannia groeningae from Brazil, with notes on the relationships of Schizodactylidae (Orthoptera, Ensifera), ZooKeys 77, pp. 17-30: 18-19

publication ID

http://dx.doi.org/10.3897/zookeys.77.769

persistent identifier

http://treatment.plazi.org/id/325EB51A-7022-75FD-E7BA-91869E4425A8

treatment provided by

ZooKeys by Pensoft

scientific name

Schizodactylus Brulle , 1835
status

 

Genus Schizodactylus Brulle, 1835  

Schizodactylus   Brullé 1835: 161. Type species: Gryllus monstrosus   Drury, 1773.

Schizocephalus   Brunner von Wattenwyl 1888: 313, lapsus calami.

Dactylocomicus   Karny 1931: 102. Type species: Comicus inexpectatus   Werner, 1901.

Brauckmannia   Martins-Neto 2007: 4. Type species: Brauckmannia groeningae   Martins-Neto, 2007, syn. n.

Diagnosis.

The genus Schizodactylus   as presently defined comprises all large and robust schizodactylids with wings developed and, with the exception of Schizodactylus inexpectatus   in which the wings are reduced, extending beyond the apex of the abdomen where they terminate in a conspicuous coil. Schizodactylus   species are further characterised by greatly enlarged mouthparts, a broad diamond-shaped labrum, and strong laterally compressed pro- and mesothoracic legs. The genus is readily separated from Comicus   , the only other genus in the family, which is characterised by a markedly smaller and more gracile body (usually less than 25 mm in length), long, slender legs, and complete reduction of the wings.

Comments.

Given the presence of distinctively coiled wings and well-developed lateral processes on the tarsi, there can be no doubt as to the placement of Brauckmannia groeningae   in Schizodactylidae   . In addition, there are no characters preserved in either the holotype (so far as can be seen from Martins-Neto’s illustrations) or the new material described below to exclude the species from the genus Schizodactylus   . Both fossil specimens match closely the general habitus, tarsal morphology and metatibial armature of extant Schizodactylus   species, and there are no convincing apomorphies to support separate generic placement.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Schizodactylidae

Loc

Schizodactylus Brulle , 1835

Heads, Sam W. & Leuzinger, Lea 2011
2011
Loc

Brauckmannia

Martins-Neto 2007
2007
Loc

Brauckmannia groeningae

Martins-Neto 2007
2007
Loc

Dactylocomicus

Karny 1931
1931
Loc

Schizocephalus

Brunner von Wattenwyl 1888
1888