A collophore is a tube-like structure on the ventral side of the first abdominal segment of the body of a collembolan. It used to be believed that it served to stabilise the animal when it jumped by sticking to the surface on which it moved. However, the current scientific consensus is that it plays a role in osmoregulation, water intake, and excr...
Tubelike sturcture located on ventral side of 1st abdominal segment 
• (n.) A suckerlike organ at the base of the abdomen of insects belonging to the Collembola. • (n.) An adhesive marginal organ of the Lucernariae.
Col'lo·phore noun [ Greek 
Ventral tube in Collembola.
a ventral tubelike structure on the abdomen of a springtail.