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mx id: 1066 | OBO id: HAO:0000939 | URI: http://purl.obolibrary.org/obo/HAO_0000939
sitophore synonyms: hypopharyngeal plate, pharyngeal plate
Defined (both definition and relationships must be met)
Definition:
The sclerite that is located in the proximal part of the hypopharygeal wall delimited distally by the functional mouth and proximally by the proximal boundary of the cibarium. The tentorio-hypopharyngeal muscle inserts on the proximal margin of the sitophore.
written by: Vilhelmsen, L. 2010. Curator..

Relationships / properties:
The sitophore is a sclerite.
The sitophore is part of the cuticle. The sitophore is part of the hypopharyngeal wall.

Label usage (sensu)
sitophore by Vilhelmsen, L. 1996. The preoral cavity of lower Hymenoptera (Insecta): comparative morphology and phylogenetic significance. Zoologica Scripta 25:143-170.
sitophore by Deans, A. R. 2009. HAO curator..
pharyngeal plate by Ronquist, F., and G. Nordlander. 1989. Skeletal morphology of an archaic cynipoid, Ibalia rufipes (Hymenoptera: Ibaliidae). Entomologica Scandinavica, Supplement 33:1-60.
pharyngeal plate by Darling, D. C. 1988. Comparative morphology of the labrum in Hymenoptera, the digitate labrum of Perilampidae and Eucharitidae. Canadian Journal of Zoology 6612:2811-2835.
hypopharyngeal plate by Snodgrass, R. E. 1956. Anatomy of the Honey Bee. Comstock Publishing Associates, Ithaca 334 pp.
Comments and tags
alternative definition added over 15 years ago by Andy Deans
The sitophore is situated in the proximal part of the hypopharynx between the morphological and functional mouth. It is concave anteriorly, forming the troughlike floor of the cibarium, and usually more heavily sclerotised laterally than mesally. The proximal margin have a pair of lateral arms. The lateral corners of the distal margin extends toward, but do not fuse with, the tormae. Pegshaped sensilla are situated on the surface of the sitophore, usually concentrated along its lateral margins
  Reference: Vilhelmsen, L. 1996. The preoral cavity of lower Hymenoptera (Insecta): comparative morphology and phylogenetic significance. Zoologica Scripta 25:143-170.
  Cross reference: None provided.


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