M 159
In December, 1932, 97 A. maculatus and 99 A. minimus had been collected from stream B between Island Road and Victoria Road. The A. minimus thus forming 50% of the collection. In February, 1933, 46 A. maculatus and 10 A. minimus were collected; the A. minimus forming 18% of the collection. In April, 93 A. maculatus and 4 A. minimus were found. A. minimus thus forming 4% of the catch. In May 35 A. minimus. In June, 6 A. maculatus. In September 20 A. maculatus, in November 76 A. maculatus and 71 A. minimus or 50% A. minimus. In stream A in December, 1932, larvae only of A. maculatus were collected between the conduit and Forestry paths. In February 65 A. maculatus and 4 A. minimus. In April, May, June, September, October and November only A. maculatus were found. Larvae of A. minimus had not previously been recorded from stream A. From enquiries made by the Malariologist it appears that sullage water from a bungalow off Hatton Road finds its way into A.
(e) MOSQUITO NUISANCES.
Complaints were received from the Peak, the Colonial Secretary's Office, the neighbourhood of Sassoon Road, the Dairy Farm, Pokfulam, and from the vicinity of Wong Nei Chong Gap.
C. fatigans was the cause of the nuisance at the Peak, the larvae being found in the usual places.
Numerous larvae of Aedes albopictus were found near the office of the Colonial Secretary. A septic tank accounted for the C. fatigans mosquitoes at Sassoon Road. At Pokfulam C. fatigans larvae were found in pools contaminated with the effluent from a septic tank. At Wong Nei Chong Gap numerous larvae of Aedes albopictus were found in the compound of a house.
Mosquitoes sent in by a resident of Shek O, which had been captured in his bungalow were identified as Aedes togoi which breed in rock pools by the sea.
Numerous C. fatigans larvae were found in pools in a hill stream which discharges into the trained Wong Nei Chong nullah over a spill way. This stream received the drainage from several pigsties.
(f) INSTRUCTION OF INSPECTORS AND TEACHING OF MOSQUITOLOGY.
The instruction of the Inspectors was continued during the year. They have attained a high standard of efficiency in the dissection of mosquitoes and in the staining and diagnosing of blood films.
Unusual features, such as the occurrence of Ross's black spores in salivary glands and midguts have been brought to the notice of the Malariologist by them, also the presence of a heavy...
M 159
In December, 1932, 97 A. maculatus and 99 A. minimus had been collected from stream B between Island Road and Victoria Road. The A. minimus thus forming 50% of the collection. In February, 1933, 46 A. maculatus and 10 A. minimus were collected the A. minimus forming 18% of the collection. In April, 93 A. maculatus and 4 A. minimus were found. A. minimus thus forming 4% of the catch. In May 35 A. minimus. In June, 6 A. maculatus. In September 20 A. maculatus, in November 76 A. maculatus and 71 A. minimus or 50% A. minimus. In stream A in December, 1932, larvae only of A. maculatus were collected between the conduit and Forestry paths. In February 65 A. maculatus and 4 A. minimus. In April, May, June, September, October and November only A. maculatus were found. Larvae of A. minimus had not previously been recorded from stream A. From en- quiries made by the Malariologist it appears that sullage water from a bungalow off Hatton Road finds its way into A.
(e) MOSQUITO NUISANCES.
Complaints were received from the Peak, the Colonial Secretary's Office, the neighbourhood of Sassoon Road, the Dairy Farm, Pokfulam, and from the vicinity of Wong Nei Chong Gap.
C. fatigans was the cause of the nuisance at the Peak, the larvae being found in the usual places.
Numerous larvae of Aedes albopictus were found near the office of the Colonial Secretary. A septic tank accounted for the C. fatigans mosquitoes at Sassoon Road. At Pokfulam C. fatigans larvae were found in pools contaminated with the effluent from a septic tank. At Wong Nei Chong Gap numerous larvae of Aedes albopictus were found in the compound of a
house.
Mosquitoes sent in by a resident of Shek 0, which had been captured in his bungalow were identified as Aedes togoi which breed in rock pools by the sea.
Numerous C. fatigans larvae were found in pools in a hill stream which discharges into the trained Wong Nei Chong nullah over a spill way. This stream received the drainage from several pigsties.
(f) INSTRUCTION OF INSPECTORS AND TEACHING OF
MOSQUITOLOGY.
The instruction of the Inspectors was continued during the year. They have attained a high standard of efficiency in the dissection of mosquitoes and in the staining and diagnosing of blood films.
Unusual features, such as the occurrence of Ross's black spores in salivary glands and midguts have been brought to the notice of the Malariologist by them, also the presence of a heavy
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