From the above it must be evident that there are other factors involved besides that of the host species as both Mitzmain and King are expert epidemiologists.
A species which may be the chief transmitter in one country may be unimportant, though present, in another country. Thus Cellia albimana is the chief malarial transmitter of Panama although C. argyrotarsis is present. In Brazil the conditions are reversed, probably due to C. albimana thriving best where slightly brackish pools of standing water abound, as in Panama.
In the Philipines A. febrifer seems the important transmitter. It freely enters houses and is a vicious biter.
In India the species which seem most active in transmitting malaria are Myzomyia culicifacies and M. listoni; while in Africa, M. funesta is very efficient.
In Europe A. maculipennis and A. bifurcatus are important.
The following species of anophelines selected from the different genera are important transmitters of malaria.
Anopheles maculipennis.—Wings with four spots located at bases of both forked cells and of second and third longitudinal veins. No costal spots. Palpi yellowish brown and unbanded. Legs unbanded.
Anopheles punctipennis.—Wings with black costa showing yellow spots at apical third and at apex. The apical spot involves the first long vein and upper branch of first fork cell. The larger spot at the apical third passes through the first long vein and to the second vein just before it branches. In A. pseudopunctipennis the markings are as above but the fringe has yellow spots.
Myzomyia funesta.—Wings with four yellow spots on a black costa and two black line spots on third longitudinal vein. Palps with three white rings. Proboscis unbanded. Legs with faint apical bands.
Pyretophorus costalis.—Costa black with five or six small yellow spots. Palps with two narrow white bands and white tip. Femora and tibiae with yellow spots. Apical tarsal bands.