Features
Like all representatives of Apocrita, gall wasps have a distinctive body shape, the so-called wasp waist. The first abdominal tergum (the propodeum) is conjoined with the thorax, while the second abdominal segment forms a sort of shaft, the petiole. The petiole connects with the gaster, which is the functional abdomen in apocritan wasps, starting with the third abdominal segment proper. Together, the petiole and the gaster form the metasoma, while the thorax and the propodeum make up the mesosoma. The antennae are straight and consist of 12 to 16 segments. In many varieties the backside of the mesosoma appears longitudinally banded. The wings are typically simply structured. The female's egg-depositing ovipositor is often seen protruding from the tip of the metasoma.
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