Vital staining of the stick insect digestive system identifies appendices of the midgut as novel system of excretion

@article{Shelomi2014VitalSO,
  title={Vital staining of the stick insect digestive system identifies appendices of the midgut as novel system of excretion},
  author={Matan Shelomi and Lynn Siri Kimsey},
  journal={Journal of Morphology},
  year={2014},
  volume={275}
}
The stick insects or phasmids (Phamsatodea) have a series of pyriform ampulles with long, thin filaments on the posterior end of their midgut referred to as the “appendices of the midgut.” Found only in phasmids, their function had never been determined until now. Their similarity to the Malpighian tubules, which are ubiquitous insect organs of excretion, suggested a similar function. To differentiate between the appendices and the Malpighian tubules and compare functional differences between… 
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