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maculatus were by far the most frequently met with. When sought for, these can be obtained in large numbers throughout the seasons, and adults can be hatched out in the Laboratory at all times. This mosquito does not figure prominently in night or day catches as will be seen on reference to Tables VII, VIII, and IX; outdoor searches made near its breeding places have not been successful so far in obtaining any. Its larvae were occasionally found in unusual places, in water in a discarded bucket, and in concrete basins. They were found in polluted streams, in one instance, a few inches below a dead frog in an advanced state of decomposition. In December sixteen larvae of A. maculatus, and nineteen of A. minimus were found in brick and cement tank on the site of the former Taikoo Sanatorium. A seepage from a rock was trickling into the tank. The site is approximately 1,200 feet above sea level, one mile as the crow flies from the nearest habitation and two and a half miles by road.
No one had been living there for two years so that proximity to human dwellings would not appear to be essential to the existence of A. maculatus or A. minimus. Ravine streams met with on the Tytam path, over half a mile from human habitations have been selected for future investigations as to what species can be met with in such situations. At Repulse Bay, cattle, horses, and pigs are absent, yet larvae of A. maculatus and A. minimus can be found, so that such animals could not appear to be necessary for these Anophelines.
Larvae of A. hyrcanus were the next most commonly met with. The adults were not obtained in large numbers either in day collections or in night catches except when the night catching was done near a swampy area as will be mentioned later. It may be that this mosquito generally leaves soon after it has fed, and so would not be numerous in day collections. This matter requires further investigation. From the results of searches made in a swampy area this mosquito would appear to have special times for breeding.
Larvae of A. minimus were obtained in greatest abundance after the rains in rocky bedded boulder strewn streams, especially in the neighbourhood of the hills. They were also found in irrigation ditches. They have been found in such streams and ditches in highly cultivated, thickly populated areas, where a good deal of pollution should find its way into these water courses. These larvae do not thrive so well in captivity as do those of A. maculatus and A. hyrcanus, and adults are not so easily obtained from them. The larvae are not often found alone being mostly associated with either A. maculatus or A. hyrcanus or both, very often only one or two larvae were met with in a considerable length of stream or ditch where numerous larvae of the other varieties were found. During the rainy season whilst good numbers of the adults were being captured with the ovaries in an advanced stage of development, very few larvae could be found in the same area. These mosquitoes can be obtained during the
M 127
maculatus were by far the most frequently met with. When sought for, these can be obtained in large numbers throughout the seasons, and adults can be hatched out in the Laboratory ar all times. This mosquito does not figure prominently in night or day catches as will be seen on reference to Tables VII, VIII, and IX; outdoor searches made near its breeding places have not been successful so far in obtaining any. Its larvae were occasionally found in unusual places, in water in a discarded Lucket, and in concrete basins. They were found in polluted streams, in one instance, a few inches below a dead frog in an advanced sate of decomposition. In December sixteen larvae of A. maculatus, and nineteen of A. minimus were found in brick and cement tank on the site of the former Taikco Sanator- The ium. A seepage from a rock was trickling into the tank. site is approximately 1,200 feet above sea level, one mile as the crow flies from the nearest habitation and two and a half miles by road.
No one had been living there for two years so that approximately to human dwellings would not appear to be es- sential to the existence of A. maculatus or A. minimus. Ravine streams met with on the Tytam path, over half a mile fron hunan habitations have been selected for future investigations as to what species can be me: with in such situations. At Repulse Bay, cattle, horses, and pigs are absent, yet larvae of A. maculatus and A. Minimus can be found, so that such animals
could not appear to be necessary for these Anophelines.
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Larvae of A. hyrcanus were the next most commonly met with. The adults were not obtained in large numbers either in day collections or in night catches except when the night catch- ing was done near a swampy area as will be mentioned later. It may be that this mosquito generally leaves soon after it has fed, and so would not be numerous in day collections. This matter requires further investigation. From the results of searches made in a swampy area this mosquito would appear to have special times for breeding.
Larvae of A. minimus were obtained in greatest abundance after the rains in rocky bedded boulder strewn streams, especially in the neighbourhood of the hills. They were also found in irrigation ditches. They have been found in such streams and ditches in highly cultivated, thickly populated areas, where a good deal of pollution should find its way into these water courses. These larvae do not thrive so well in captivity as do those of A maculatus and A, hyrcanus, and adults are not so easily obtained from them. The larvae are not often found alone being mostly associated with either A, maculatus or A. hyrcanus or both, very ten only one or two larvae were met with in a considerable ngth of stream or ditch where numerous larvae of the other arieties were found. During the rainy season whilst good num- wers of the adults were being captured with the ovaries in an dvanced stage of development, very few larvae could be found the same area. These mosquitoes can be obtained during the
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