Occiput (insect)
The occiput (Latin for "back of the head") describes the region of the head capsule behind the vertex (crown) and the genae (cheeks) in insects . This lies in front of the transition from the head to the thorax (arthropod) and includes the occipital opening (foramen occipitale). It can be separated from the rest of the head capsule as a narrow area by an occipital suture and thus recognizable; its side parts form the postgenae that have not been separated.
The occipital opening itself is enclosed by the postoccipital ridge (recognizable from the outside as a postoccipital suture), which is the only visible borderline between two head segments that separates the maxilla from the labial segment . The latter forms the sclerotized postocciput , at the lower end of which the labium is attached.
supporting documents
- ↑ Frons. In: Herder-Lexikon der Biologie. Spektrum Akademischer Verlag, Heidelberg 2003, ISBN 3-8274-0354-5 .
- ↑ a b Gerhard Seifert: Entomological internship. Georg Thieme Verlag, Stuttgart 1975, ISBN 3-13-455002-4 , p. 252.