Blood-sucking arthropods do not acquire blood from their hosts in the same way. Basically, two types of blood feeding mechanisms have been distinguished in hematophagous arthropods, including vessel feeding or solenophagy and pool feeding or telmophagy (Lavoipierre, 1965). Vessel feeders such as mosquitoes and triatomines bugs feed directly from the blood vessel by inserting the tip of their mouthparts into the skin of the host.
These mouthparts are needle-like structures that function as a hypodermic syringe in conjunction with the cibarial pump, a complex structure associated with a group of muscles located in the head of the insect. This structure controls the uptake of the blood and its transfer to the gut. Pool feeders, on the other hand, lacerate the host skin, damage blood vessels, and feed on the pool formed by the extravasated blood (Lavoipierre, 1965). This behavior is seen mainly in ticks which have strong mouthparts to burrow into the skin of the host. However, vessel feeders may also feed on blood pool, but the occurrence is very rare.