M 131
28. A. jeyporiensis var. candidiensis. Larvae were collected from grassy ditches and grassy seepages areas. Like A. minimus, the adults were obtained without difficulty in morning catches done in thatched bamboo huts or in matsheds within flying distance of breeding places.
29. Few larvae of A. karwari, A. splendidus, or A. aitkenii var. bengalensis were collected, and none of either A. tessellatus or A. vagus. Some adults of A. karwari, A. splendidus, and A. tessellatus were captured. No infections, malarial or filarial, were met with in any of the specimens dissected.
30. Larval and adult Anopheline specimens were sent to Dr. Y. T. Yao, Nanking; Culicine specimens and specimens of infected glands and midguts to Dr. T. R. Kesavan, Health Officer, Singapore. Specimens of Anophelines were received from Lieut. Colonel J. A. Sinton, V.C., O.B.E., Director Malaria Survey of India. Micro-photographs of sporozoites, oocysts, etc. taken by the Chinese Staff with a projector in a dark room, were sent to Squadron Leader J. B. Gregor, Singapore, Dr. J. W. Scharff, Singapore, and Professor Patton, Liverpool School of Tropical Medicine. Identifications of Anopheline larvae and adults were made on behalf of the Lingnan University, Canton.
III. THE CATCHING AND DISSECTION OF MOSQUITOES.
Pokfulam Cattle Byres. Night Catching.
31. Many surveys have been done in this locality, which is within a radius of half a mile from the new Queen Mary Hospital. Larvae of A. maculatus were found in abundance at all times; larvae of A. minimus were scarce or absent, except in surveys done during the colder months.
32. A. maculatus can only be obtained in insignificant numbers under ordinary circumstances in day or night catching done in human habitations, or in day catching done in village cow byres and pigsties.
33. In April 1935, night catching was started in the cattle byres with the permission of the General Manager of the Dairy Farm. A cattle attendant, who was provided with a catching bottle and electric torch, and had been instructed by the Bureau Staff, caught for 1 hour from dusk onwards.
34. A. maculatus were taken feeding on the cattle or resting upon the walls of the byres, usually gorged with blood. During 164 nights, 2819 A. maculatus, 19 A. hyrcanus, 31 A. vagus, 6 A. minimus, 1 A. jeyporiensis were captured.
M 131
28. A. jeyporiensis var. candidiensis. Larvae were collected from grassy ditches and grassy seepages areas. Like A. minimus the adults were obtained without difficulty in morning catches done in thatched bamboo huts or in matsheds within flying distance of breeding places.
29. Few larvae of 4. kurwari, A. splendidus, or A. aitkenii var. bengalensis were collected, and none of either A. tessellatus or A. vagus. Some adults of A. karwari, A. splendidus and A. tessellatus were captured. No infections, malarial or filarial, were met with in any of the specimens dissected.
30. Larval and adult Anopheline specimens were sent to Dr. Y. T. Yao, Nanking; Culicine specimens and specimens of infected glands and midguts to Dr. T. R. Kesavan, Health Officer, Singapore. Specimens of Anophelines were received from Lieut. Colonel J. A. Sinton, V.C., O.B.E., Director Malaria Survey of India. Micro-photographs of sporozoites, oocysts, etc. taken by the Chinese Staff with a projector in a dark room,
were sent to Squadron Leader J. B. Gregor, Singapore, Dr. J. W. Scharff, Singapore, and Professor Patton, Liverpool School of Tropical Medicine. Identifications of Anopheline larvae and adults were made on behalf of the Lingnan University, Canton.
III. THE CATCHING AND DISSECTION OF MOSQUITOES.
Pokfulam Cattle Byres. Night Catching.
31. Many surveys have been done in this locality which is within a radius of half a mile from the new Queen Mary Hospital. Larvae of A maculatus were found in abundance at all times, larvae of A. minimus were scarce or absent, except in surveys done during the colder months.
32. A. maculatus can only be obtained in insignificant numbers under ordinary circumstances in day or night catching done in human habitations, or in day catching done in village cow byres and pigsties.
33. In April 1935, night catching was started in the cattle byres with the permission of the General Manager of the Dairy Farm. A cattle attendant who was provided with a catching bottle and electric torch, and had been instructed by the Bureau Staff, caught for 1 hours from dusk onwards.
34. A. maculatus were taken feeding on the cattle or resting upon the walls of the byres, usually gorged with blood. During 164 nights, 2819 A. maculatus, 19 A. hyrcanus, 31 A. vagus, 6 A. minimus, 1 A. jeyporiensis were captured.
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