In the process of bloodfeeding, female Anopheles can transmit malaria
parasites to humans. At night, while searching for blood, these insect
s respond to visual, physical and chemical properties of humans. Curre
nt research concentrates on the identification of kairomones, which gu
ide mosquitoes to humans. Earlier observations on the biting behaviour
of Anopheles gambiae s.s. on humans have note resulted in the discove
ry of a remarkable attractant for this important malaria vector, and i
t is thought that this will accelerate the development of odour-baited
traps for malaria mosquito surveillance and control in sub-Saharan Af
rica, as discussed here by Bart Knols and Ruurd De Jong.