チカイエカおよびチカイエカ・アカイエカ交雑群の無吸血産卵に及ぼす幼虫期栄養条件の影響

概要

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Examinations were carried out on the influence of the quality of larval food substances on the duration of aquatic stage, wing length and autogenous reproduction of Culex pipiens molestus and hybrids of C. p. molestus and C. p. pallens, using the laboratory colonies. Three kinds of larval diets, (A) 3 parts of laboratory chow for insect and 1 part of powdered yeast, (B) powdered yeast aloned and (C) 3 parts of potato starch and 1 part of powdered yeast were used. Fifty larvae of each strain or hybrid just hatched out were put into a glass jar containing 25mg of one of the three diets suspended in 300ml tap water. The larvae were transported everyday to a newly prepared jar with the diet of 50mg, 75mg, and 100mg on the 2nd, 3rd, 4thdday and after, respectively. Females were dissected on the 4th day after emergence. Developmental rate and mean of wing length of each strain or hybrid were maximum in diet A and minimum in diet C. In molestus, the percentages of females with mature eggs were 95.6 to 100,78.3 to 88.9 and 39.2 to 70.9 and the mean numbers of mature eggs in the females were 86.1 to 112.1,59.6 to 70.5 and 24.9 to 45.7 in diet A, B, and C respectively. In hybrids, the percentages of females with mature eggs were a little lower than those of molestus in each diet, while the mean number of the eggs were nearly the same as in molestus.
日本衛生動物学会の論文
1976-09-15