Medical Entomology and Zoology
Online ISSN : 2185-5609
Print ISSN : 0424-7086
ISSN-L : 0424-7086
Volume 4, Issue 3-4
Displaying 1-14 of 14 articles from this issue
  • Article type: Index
    1953 Volume 4 Issue 3-4 Pages Toc3-
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Article type: Index
    1953 Volume 4 Issue 3-4 Pages Toc4-
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Tomio Yamaguchi
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 49-52
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Satyu Yamaguti, Seiiti Inatomi, Mitiya Kimura
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 53-54
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Kazuo Yasutomi
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 54-61
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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    Studies of the development of DDT and γ-BHC (Lindane) resistance in natural populations of lice, Pediculus humanus corporis de Geer, in Japan have been conducted during 1952 and 1953. Lice were collected from five different localities in Japan for the comparison of their resistance to DDT and γ-BHC. They were Itabashi asylum in Tokyo where frequent dusting with 10% DDT powder had failed to control the lice and two slums and two primary schools (at Ueno in Tokyo, Sapporo, Ponbetsu, and Atsuda in Hokkaido) which, so far as could be learned, had been treated infrequently, if at all. They were continuously exposed on the filter paper in a petri dish treated with pp′-DDT (at the rate of 7g per square foot) and γ-BHC (at the rate of 0.234mg per square foot), and time-mortality were recorded. From these data the regression of probit mortality on log-time was computed, and the exposure time required to produce 50 per cent mortality (LT-50) in order to obtain the informations as to the relative resistance of the lice in the different installations. The LT-50 was 112.0 hours for the female and 71.26 hours for the male of the Itabashi strain, whereas 28.27 hours and 21.50 hours for the Sapporo strain, which indicated that the Itabashi strain could endure 3.31 to 3.96 times as much of DDT as that of the Sapporo strain. The lice from the slums at Ueno in Tokyo showed the LT-50 on DDT residues of 36.63 hours for the female and 25.48 hours for the male, while those of the lice from the Sapporo strain were 28.27 hours and 21.50 hours respectively. Three strains of Hokkaido were of similar LT-50. The DDT-resistant lice from the Itabashi colony showed no resistance at all to residues of γ-BHC, which gave nearly equal mortalities of the other three strains of lice except in the case of the Atsuda strain. The lice from the primary school at Atsuda showed somewhat less resistance to γ-BHC than those from any of the other sources, although these localities were not known to have been treated with γ-BHC. Genetical experiments of DDT-resistance with the Itabashi strain was also made. The F_1-adults from the crosses of Itabashi ♀×Ueno♂ and Ueno♀×Itabashi♂ were intermediate with regard to the DDT-resistance. Resistance inheritance factors are carried by both sexes.
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  • Goichi Nakata, Kikuo Matuo, Sumiyo Ito
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 62-72
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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    Observations on the successions of larvae and pupae of mosquitoes breed in the minute inland waters in the graveyards and the bamboo thickets were conducted from January to December, 1953. In the stone basins on the hilly cemetery, 5006 individuals belonging to 7 species were collected, of which Aedes japonicus (67.0%) was the most common, Aedes albopictus (19.5%), Uranotaenia bimaculata (7.3%), Aedes nipponicus (4.9%) were next in frequency, Orthopodomyia anopheloides nipponica (0.9%), Tripteroides bambusa (0.3%), Culex kyotoensis (0.1%) were found only in small numbers. In the bamboo stubs, 3643 individuals belonging to 6 species were obtained, of which Uranotaenia bimaculata (61.1%) was the most common, Aedes flavopictus (22.7%) was next, and Tripteroides bambusa (8.5%), Armigeres subalbatus (3.1%), Aedes japonicus (2.6%), Aedes albopictus (2.0%) were rather rare. The seasonal prevalencies of these species are shown in Fig.1 and Fig.2. In the stone basins in graveyards, Aedes japonicus appeared all the year round, and was dominant in winter and spring, but in summer Aedes albopictus exceeds it, and in November and December it is out-numbered by Uranotaenia bimaculata. The mode of appearance in the bamboo stubs shows that the terms of appearance of Uranotaenia bimaculata and Tripteroides bambusa are the longest of all, and the former is exceedingly dominant in winter and autumn, while in spring and summer Aedes flavopictus takes its place. The writers would regard these larval livings in two types of water area as independent communities, and propose to appellate them "community in the stone basins on the hilly cemetery" and "community in the bamboo stubs on the height" respectively. Basing on these results, the over-wintering habits and the life histories of each species were comparatively considered, and the constructions and the features of each community were discussed.
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  • Hiroshi Tanaka
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 72-80
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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    The author describes seven species of cheyletid mites belonging to four genera found in Japan, as shown in Table 1. Table 2 shows the relation between the mites and their hosts or breeding materials, and collecting places. Among these seven species of mites, Cheyletus eruditus and Cheletomorpha lepidopterorum were already recorded from Japan by E. W. Baker in 1949, and Cheyletielta takahasii was found as a new species in 1951 by Sasa and Kano on Ochotona hyperborea yesoensis caught at Mt. Daisetsu in Hokkaido. The presence of the other four species in Japan, that is Cheyletus fortis, Cheyletus rapax, Eucheyletia flabellifera, Cheyletiella parasitivorax are newly reported. As shown in Table 2, the common species of mites that were collected here were Cheyletus fortis from storage foods and Eucheyletia flabellifera on small field rodents. On the other hand, Cheyletus eruditus and Cheletomorpha lepidopterorum which are regarded as cosmopolitan species of cheyletid mites were rather rarely collected.
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  • Taiichi Ito, Yutaka Saito, Seihachiro Niwayama, Tatsuji Ito, Tsuneji K ...
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 80-87
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Takeshi Suzuki, Tozo Kanda, Hiroshi Tanaka, Suzukichi Iida
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 88-97
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Manabu Sasa, Eiji Takeoka
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 97-100
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Masaaki Tokunaga
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 101-107
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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    The purpose of this paper is to discuss the myiasis-producing moth-flies on the materials found from two Japanese patients. I wish to express my hearty thanks to Prof. Dr. K. Morishita of Osaka University who kindly sent the valuable material to our laboratory to study freely. Prof. Dr. T. Esaki of Kyusyu University has most generously presented his Psychodid collection from Japan and England to my study. I wish to thank Dr. W. W. Wirth of Washington, Mr. S. Ito of Osaka Naniwa University and Dr. G. W. Byers of Michigan to their kind help sending their important collections for this study and also to thank Prof. Dr. K. Yasumatsu whose loan of the important literature. I appreciated the aid rendered to me by Mr. M. Sasakawa and Miss E. Komyo of our laboratory during the study of this problem.
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  • Jun Hara
    Article type: Article
    1953 Volume 4 Issue 3-4 Pages 108-123
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Article type: Appendix
    1953 Volume 4 Issue 3-4 Pages 125-126
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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  • Article type: Appendix
    1953 Volume 4 Issue 3-4 Pages 132-
    Published: December 25, 1953
    Released on J-STAGE: September 03, 2016
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