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12. Petiole transverse, without longitudinal ribs. In most species, median groove of scutellum (a1) extending more than half scutellar length. Mesopleuron (b1) without epicnemial carina (although diagonal mesopleural sulcus extending from mesocoxa is present).

Horismenus Walker, 1843

12'. Petiole longer than broad, with longitudinal ribs (bb1). Median groove of scutellum (aa1) extending less than half scutellar length. Mesopleuron with epicnemial carina (bb1, indicated by arrow).

Edovum Grissell, 1981


horismenus bennetti scutellum.JPG (20676 bytes) horismenus pleuron.JPG (24038 bytes)

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edovum_dorsal.jpg (437266 bytes)

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edovum_pleuron2.jpg (296320 bytes)

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Image credits: a1: Schauff (1987). b1: Schauff (1991).