Clypeus
The clypeus ( Latin clipeus, "shield"), also called the head shield , is part of the head skeleton of insects and lies in the middle behind the labrum . Usually the clypeus is sutured from the adjacent parts of the head skeleton. In some groups of insects ( e.g. cockroaches ) the clypeus is clearly divided into ante and post clypeus . The anteclypeus is closer to the upper lip. Opposite the forehead, the postclypheus is delimited by the epistomal suture. A frontoclypeus is caused by the fusion of the forehead and head shield, the epistomal suture is then missing. This is typical of many humpback chirps .
In many groups of insects there are species-specific different designs of the front plate, for example with regard to coloration and markings, hairiness, dots, microstructure, curvature or special designs such as protruding teeth or ridges. In the case of pleated wasps, for example, the different drawing of the faceplate (in the form of points, anchors, etc.), along with other features , serves to identify the different species .
In spiders, too, the mostly narrow section between the front pair of eyes and the edge of the carapace is called the clypeus.
See also
Individual evidence
- ↑ S. von Kéler: Entomological dictionary with special consideration of the morphological terminology 3rd edition Akademie-Verlag Berlin 1963.
- ↑ Hans Strümpel: Handbook of Zoology . tape 4 . Walter de Gruyter, 1983, ISBN 978-3-11-008856-4 , p. 83 .
- ↑ Christian Schmid-Egger: Identification key for the German species of solitary fold wasps (Hymenoptera: Eumeninae). In: Volker Mauss, Reinholdreiber : Identification key for the folded wasps (Hymenoptera: Masarinae, Polistinae, Vespinae) of the Federal Republic of Germany. 2nd Edition. German Youth Association for Nature Observation , Hamburg 1995, ISBN 3-923376-17-0
- ^ Charles F. Lytle, John R. Meyer: Practical course in general zoology . Pearson Germany, 2010, ISBN 978-3-86894-035-0 , pp. 243 .