Very long maxilary palps, usually extended forward, with some segments of the maxilar palp flattered and with conspicuous quetae, as long as the palp width. Propodeal spiracle slit-shaped
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Shorter maxilary palps, usually directed downwards. All of the maxillary segments with circular section and short quetae, clearly shorter than palp width. Propodeal spiracle ovoid or circular
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