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I'm wondering if 'third antennal-joint' (Collin 1943) means the thin area between the 2nd & 3rd segments or is it another/older way of describing the 3rd antennal segment. Can anyone clear this up for me please so I can proceed through a fairly old key?
Also, what does 'quadriserial' mean? It's in relation to 'acrostichal microchetae', which I take to mean tiny hairs (between dc bristles)
Could quadriserial possibly be referring to the square area between the four dc bristles which follow the anterior pair??