- gastrocoelus
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n.; pl. -li [Gr. gaster, stomach; koilos, hollow](ARTHROPODA: Insecta)In Hymenoptera, transverse impressions at both sides of the base of the 2nd gastral tergite; includes thyridium.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
