Propodeum
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The propodeum[a] is a term that can refer to unrelated structures in insects or in mollusks.
Insects
[edit | edit source]The first abdominal segment in Apocrita Hymenoptera (wasps, bees and ants) is known as the propodeum. It is fused with the thorax to form the mesosoma. It is a single large sclerite, not subdivided, and bears a pair of spiracles. It is strongly constricted posteriorly to form the articulation of the petiole, and gives apocritans their distinctive shape. There may be a suture between the propodeum and the thorax, like in Symphyta[3] or not, and the presence or absence of such suture can aid in identifying specimens.
Mollusks
[edit | edit source]Propodeum is the anterior (frontal) part of the foot of a mollusk.[4]
Notes
[edit | edit source]- ^ zooanatomical jargon derived from Ancient Greek: πρωπόδιον "forefoot", also as 'propodeon'[1][2] or 'propodium'[attribution needed]; plurals 'propodea', 'propodia', or by appending -s to the singular
References
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