Advertisement

Zoomorphology

, Volume 118, Issue 4, pp 235–243 | Cite as

Comparative morphology of cercal structures in true crickets and their allies (Orthoptera, Ensifera): a phylogenetic perspective

  • Laure Desutter-Grandcolas
ORIGINAL ARTICLE

Abstract

 Cercal structures are surveyed in a large number of crickets sensu lato (Orthoptera, Ensifera, Gryllidea) to analyse their diversity and check for their potential phylogenetic interest. Several other Ensifera are also examined for outgroup comparisons. The main results indicate that Gryllidea can be characterised by several features of their cerci, namely the irregular alignment and the varied size of club-shaped setae. Peculiar features of cercal structures may also be autapomorphic of Gryllidea subclades, such as the presence of wedges on the surface of club-shaped setae (Grylloidea, Gryllotalpidae), the presence of scale-like setae (Mogoplistidae) or that of apical pores on trichoid setae (Myrmecophilidae, Myrmecophilinae), for example. At the scale of Ensifera, three characters are of phylogenetic interest: the presence of club-shaped setae in Gryllidea and Stenopelmatidae, the presence of inner rims inside the sockets of filiform and, when present, club-shaped setae in Gryllidea and, if confirmed, in Rhaphidophoridae, and the occurrence of microtrichiae on the cerci surface in Gryllidea and Rhaphidophoridae.

Keywords

Varied Size Peculiar Feature Comparative Morphology Phylogenetic Perspective Outgroup Comparison 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Laure Desutter-Grandcolas
    • 1
  1. 1.EP90 CNRS, Laboratoire d’Entomologie, Muséum National d’Histoire naturelle, 45 rue Buffon, F-75005 Paris, France e-mail: desutter@mnhn.fr Tel.: (33) 0140793402 Fax: (33) 0140793699FR

Personalised recommendations