part_of
part of
develops into
posterior spiracle primordium
embryonic posterior spiracle
fly_anatomy.ontology
FBbt:00000197
P1 PosSpi
FBbt:00005603
posterior spiracle specific anlage
Primordium of the posterior spiracle of the larva. Originates in the posterior half of the lateral ectoderm of abdominal segment 8 during stage 12. A group of cells that are more basophilic that those surrounding them form a deep groove and fuse with the posterior arm of the tracheal primordium of A8 (tracheal metamere 10).
embryonic/larval posterior spiracle
late extended germ band embryo
dorsal closure embryo
embryonic/larval spiracle primordium