Table 1.

Results of the first entomological surveillance programme carried out within a 1-km radius of the construction site

Collection technique	Work output	Anopheles species (number of specimens) found
Larval surveya	1058 dips	An. culicifacies (223), An. barbirostris (15), An. jamesii (7), An. peditaeniatus (42), An. vagus (8), An. varuna (48)
Pyrethrum spray sheet collections	20 houses	An. culicifacies (3)
Indoor hand collections	5.5 man hours	An. culicifacies (7)
Human landing catches (indoor)	51 man hours	An. culicifacies (6)
Human landing catches (outdoor)	51 man hours	An. culicifacies (51), An. pallidus (1), An. tessellatus (1)
Cattle baited trap collections	02 traps	An. barbirotris (8), An. culicifacies (1), An. jamesii (2), An. nigerrimus (4), An. pallidus (3), An. peditaeniatus (38), An. tessellatus (5), An. vagus (14), An. varuna (61), An. aconitus (3)
Window trap techniques	06 traps	No Anophelines

^aPotential larval breeding sites are shown in Fig. 2