- pseudosessile
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adj. [Gr. pseudos, false; sessum, sitting](ARTHROPODA: Insecta)In Hymenoptera, appearing sessile due to having the abdomen usually basally constricted and its first segment fused with the metathorax.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.