- mesopleurosternal suture
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(ARTHROPODA: Insecta)In Diptera, the external groove between the meskatepisternum and the mesobasisternum, or mesosternum when the mesobasisternum is not distinguishable; the pleurosternal suture.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.