The dorsal seta nearest both the posterior margin and the longitudinal midline of abdominal segments I to VII; seta 3-VI and sometimes seta 2-VI may be nearer in some taxa (in such cases these setae can be identified through a process of elimination); usually well developed, may be stellate or palmate in some taxa.
Larval chaetotaxy: seta 1-I-VII
Pupal chaetotaxy: seta 1-II-VII