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“metasoma”
metasoma
1. The posterior part of the body, or tagma (grouping of arthropodan segments; such as, the head, the thorax, and the abdomen with a common function), of arthropods (an invertebrate animal having an exoskeleton or an external skeleton, a segmented body, and jointed appendages or body parts that may extend from a body segment) whose body is composed of three parts; such as, the metasoma, and the other two being the prosoma and the mesosoma.
2. The posterior region of the body of certain invertebrates, a term used especially when the phylogenetic segmentation pattern cannot be identified.
2. The posterior region of the body of certain invertebrates, a term used especially when the phylogenetic segmentation pattern cannot be identified.
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soma-, som-, somat-, somato-, -soma, -some, -somus, -somia, -somic, -somal, -somite, -somatous, -somatia, -somatic
(page 3)
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“metasoma”
metasoma
The hindmost of the three principal divisions of the insect body.
In most insect groups, it is the strict equivalent of the abdomen.
In the higher hymenoptera, it is composed only of some of the abdominal segments, since the first segment (the propodeum) is fused with the thorax and has therefore become part of the mesosoma (middle of the three major divisions of the insect body).
This entry is located in the following unit:
Ant and Related Entomology Terms
(page 11)