Genus Stegomyia: 
5 . Gracilis 
S. Fuse a 
S. Perplex a 
S. Scutel'laris 
Genus Scutomvia :— 
5 . Albolineata 3 ,, 
Genus Culex :— 
C. Sitiens 
C. Gelid us 
C. Uni for mis 
Genus Mansonia :— 
M. Annulipes 15 „ ,, 
Sub-family Wyeomyina:— 
Genus Wyeomyia:— 
W . Metallicus 4 „ ,, 
On a case of benign tertian a few mosquitoes were fed, viz :— 
Myzorhyncus:— 
M. Barbirostris 3 fed none infected. 
M. Sinensis 5 ,, ,, 
In none of these experiments were mosquitoes re-fed and none lived 
long enough for the filarial embryos to reach the full stage of development 
in the mosquito. Of those fed on patients with malaria sufficient time 
elapsed for development of the zygotes but not enough for the salivary 
glands to become infected. The mosquitoes were given abundant chances 
to re-feed both when confined in test tubes and in cages but did not do so. 
It is possible to keep these mosquitoes alive on fruit but many in which 
this method was adopted injured themselves either by falling into the water 
or by getting their wings damaged and these had to be killed at once and 
dissected. 
Only a small proportion of the known species of mosquitoes have so 
far been tested. These include the common urban species and the hardier 
jungle species. Sufficient has been done to show the variety in species and 
genera capable of carrying Filaria and to prove that the urban species even 
of the anophelina are not good carriers of Malaria. 
Many of the species of mosquitoes known in Malaya apparently do not 
feed on blood and others including such important species as A. Treacherii, 
Kochii and M. leucophyrus though proved to attack man in their natural 
condition can not be induced to feed when reared from larvae or in captivity. 
12,, ,, 
3 ” ’> 
( 269 ) 
8 fed none infected, 
o jj »> 
4 ” ” 
* • >5 »» 
