1 = scape, 1st antennal segment
2 = pedicel, (pl. pedicelli), 2nd antennal segment
3 = postpedicel, 3rd antennal segment
4 = 1st segment of style, 1. microsegment
5 = 2nd segment of style, 2. microsegment
6 = sensillum
3-6 = flagellum (recommended for use in Nematocera only), compound 3rd segment
4-6 = arista, stylus
7 = hair
8 = bristle
9 = pit
10 = sensillum