stage11-12 |   
  | ventral epidermis primordium gnathal primordium anterior midgut primordium posterior midgut primordium sensory nervous system specific anlage
| | brain and trunk neural expression different but too abundant to score.
In epidermal ectoderm; segmental stripes (I don\'t think tracheal pits, although later apparently tracheal staining) |
stage13-16 |   
  
  | embryonic/larval tracheal system lateral cord embryonic midgut
| | mg staining undefined ventral group.
Strange indeed: maybe only stgaining in yolk; looks not like real midgut epithelium, nor visceral mesoderm.
|