DOMESTIC MOSQUITOS OF NIGERIA. 



331 



Table IV. — Mosquitos caught in Daily Examination of M.O.'s Bungalow 



at Zungeru, 1912. 





Month : 



June 

 and 

 July 



Oct. 



Nov. 



Dec. 



Total 

 for 

 15 



weeks 





Species. 



Period 



in 

 days : 



60 



15 



15 



15 



Percentages. 



Anopheles 

 A. co stalis 

 A. funestus 

 A. rufipes 

 A. pretoriensis 

 A. pharoensis 



45 

 5 



7 

 2 



407 



165 



49 



20 



1 



21 

 4 



31 

 4 



2 

 3 



4 



475 



177 



91 



26 



1 



61-7% of total Anopheles 

 23-0% „ 

 11-8% „ 

 3-4% „ 



o-i% „ 



Stegomyia fasciata 



5 



- 



- 



- 



5 





Culex group 

 Culex deeens 

 Culex invidiosus 

 Culex tigripes 

 Culex ager 

 Culex duttoni 

 Culiciomyia nehulosa 

 Mansonioides uniformis 



30 



25 



5 



3 



3 



3 

 5 

 5 

 1 



3 

 1 



- 



1 



34 

 30 

 10 

 4 

 3 

 3 

 1 



40 -0%of total Culex group 



oo 'o / ,, „ 



11-8% „ 

 4-7% „ 



*j'5 /O 55 « 



3-5% ., 



1-2% „ 



Total Anopheles 



59 



642 



60 



9 



770 



89-5% of total mosquitos 



Total Stegomyia 



5 



- 



- 



- 



5 



0-6% „ 



Total Culex group 



66 



18 



- 



1 



85 



9-9% „ 



Kainfall in 1912 (May to September) ~=29-93ins. 



Total mosquitos examined in 15 weeks = 860, of which 89 5% were Anopheles. 



