Fig. 2

Microscopic images of spermathecae showing the (a) presence of the spermatozoa as the confirmation for insemination and (b) absence of spermatozoa suggesting non-inseminated, (c) Egg structure of the female Anopheles funestus s.s. as seen under microscope, a quick and cheap method of species distinction within Anopheles funestus group during colonization instead of standard Polymerase Chain Reaction (PCR) and (d) the wing measurement under microscope showing the apical notch and the auxiliary margin