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Volume 11 (1960)
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Volume 11, Issue 1
Displaying 1-15 of 15 articles from this issue
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Article type: Cover
1960 Volume 11 Issue 1 Pages Cover2-
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (43K) -
Akiko MiuraArticle type: Article
1960 Volume 11 Issue 1 Pages 1-5
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSResults of the laboratory rearings of Japanese trombiculid mites made by the author since 1950 are summarized, and the details of improved technics now adopted in her laboratory are presented. Most of the materials have been collected in nature as engorged larvae from various hosts, and are kept in plastic vials with solidified gypsum-charcoal mixture as the substratum under adequate temperature and humidity. After the resting stage of about two weeks, they moult into nymphs. Eggs of various insects were given as their food, such as of Culex and Aedes mosquitoes, dragonflies, and Collembola. Nymphs develop into adults after resting stage of about two weeks. Oviposition by the females was seen in three species (Trombicula akamushi, Trombicula pallida and Trombicula intermedia) and production of spermatophore by males was observed in Trombicula akamushi. It usually takes three months to complete their life cycle in the laboratory. Improvements in the rearing technics have been introduced in several aspects. Plastic containers were found to yield better results than glass vials. A filter paper sheet was inserted between the two pieces of plastic containers to prevent larvae from drawing into water droplets and from escaping. The use of a cone made of gypsum-charcoal mixture gave excellent results in keeping unengorged larvae alive for several months, as they stood still forming a cluster on its surface. Microtus montebelli, a field vole common in Japan, was found to be the best experimental host for T. akamushi and related species, and almost all of the unengorged larvae artificially attached to it were recovered as fully engorged.View full abstractDownload PDF (686K) -
Akiko MiuraArticle type: Article
1960 Volume 11 Issue 1 Pages 5-14
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSAs the results of laboratory rearings of Japanese trombiculids since 1950, the author could rear 6 genera and 29 species to nymphs and 12 species to adults. The rearings for this purpose were mostly made by keeping engorged larvae individually in small containers, and identification of species was made by examining the larval skin cast. A key to identify these nymphs is presented. Microphotographs of the main species to show their important structures are also presented.View full abstractDownload PDF (3275K) -
Yoshio KurashigeArticle type: Article
1960 Volume 11 Issue 1 Pages 14-17
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSWith a view to study experimentally the influence of duck-raising to the occurrence of mosquito larvae, I raised forty ducks, at the ratio of a duck per 1.9 square meters, in a pond of the suburbs of Makassar, Celebes. I investigated mosquito larvae and environmental factors in the same pond for a month. In the consequence of raising ducks, I ascertained that water became muddy and aquatic algae declined in its luxuriance and then Anopheles larvae decreased remarkably in number. Also Culex larvae showed the tendency to decrease in number.View full abstractDownload PDF (518K) -
Kazuki OgataArticle type: Article
1960 Volume 11 Issue 1 Pages 17-21
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSUsing the fly catch ribbon, the seasonal change of the fly fauna in a dwelling house was observed, during a period from April 1957 to March 1959 in Kawasaki City, near Tokyo. From a living room 2, 934 adult flies in total which are referable to 20 species, and from a lavatory 1, 081 individuals referable 14 species were collected; the majority of them was consist of Fannia canicularis (65.9%) and Musca domestica vicina (31.4%). Both species are recognizable throughout the year and are most abundant during the months from April to December. The prevalence had two peaks a year. In M. d. vicina, the first peak was lower than the second, while in F. canicularis the first peak was higher than the second. It seemed that both the species do not abundantly occur simultaniously in a same season. A considerable difference was observed between the peak of occurrence in 1957 and 1958.View full abstractDownload PDF (624K) -
Naomitsu Nezu, Yuko Matsuhashi, Seiichi SasakiArticle type: Article
1960 Volume 11 Issue 1 Pages 21-24
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSIn this paper was given the results of one year's observation on species and seasonal prevalence of flies collected by means of the glass trap in Mito City, Ibaraki Prefecture, from February, 1958 to January, 1959. As shown in Table 1, the total flies collected were classified into 5 families, 9 genera and 14 species. In general houses, the flies collected were 343 individuals, belonging to 5 families, 9 genera and 9 species. Fannia canicularis and Musca vicina occupy about 90% in number, representing the great majority of the individuals. In a fishmonger, the flies collected were 905 individuals which belong to 4 families, 8 genera and 13 species. The family Calliphoridae occupies about 82% in number. The peaks of the population curves of flies at those three stations were found in July.View full abstractDownload PDF (370K) -
Jun Hara, Minoru HanadaArticle type: Article
1960 Volume 11 Issue 1 Pages 25-27
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSA free-living cheyletid mite way found in the laboratory of the depatment and detail examination was carried out. Supperficially the specimen resembles Eutogenes foxi Baker, but examination on the specimen will show distinct differences.View full abstractDownload PDF (245K) -
Yasumasa OhmoriArticle type: Article
1960 Volume 11 Issue 1 Pages 27-30
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe author has previously made descriptions of Japanese anopheline pupae. At that time several abnormalities were encountered in those specimens. Few case of pupal abnormality has been reported, and the author will hereby make brief descriptions about these examples. Number of specimens observed is given in Table 1. All pupal materials except for A. lindesaii japonicus were obtained by the rearing of larvae hatched from the eggs under the room temperature (about 20-28℃). The larvae of A. lindesaii japonicus were collected in mountain streams and were also reared to the adults in the same condition. The pupal pelts left alone in the water by emergence of the adults were preserved in a 10% formalin solution until the materials were gathered enough to be examined. Then the pelts were mounted in a gum-chloral solution and were observed under the binocular microscope.View full abstractDownload PDF (1051K) -
Kohei Sakaguti, E. W. Jr. JamesonArticle type: Article
1960 Volume 11 Issue 1 Pages 30-32
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSIn Japan moles of the genus Mogera are generally rather lightly infested with fleas and many of these big moles are completely free of fleas. From Mogera wogura we have a small series of fleas from Mt. Fuji (Yamanashi-ken) and Kibune (Kyoto-fu) which are a species of Palaeopsylla very close to P. nippon Jameson and Kumada, 1953. One pair from Mogera wogura from Korea are also of this species.View full abstractDownload PDF (278K) -
Article type: Appendix
1960 Volume 11 Issue 1 Pages 32-
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
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Susumu YamamotoArticle type: Article
1960 Volume 11 Issue 1 Pages 33-35
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSStudies on the parasitic fleas found on the hosts collected during the surveys of trombiculid mites were carried out in Hyuga district from Jan., 1958 to Feb., 1959. The species of hosts were Urotrichus talpoides (2 individuals), Apodemus speciosus (10), Rattus rattus (1), R. norvegicus (1), Petaurista leucogenys (2), and Nycterutes procyonoides (3) respectively and fleas collected from them were 8 genera, 8 species and 281 individuals. Palaeopsylla nippon was collected from U. talpoides, a few Nosopsyllus fasciatus from both R. rattus and R. norvegicus, and Chaetopsylla mikado from P. leucogenys. The records that Neopsylla specialis was found on P. leucogenys and Htyphloceras shogakii was collected from both P. leucogenys and N. procyonoides were new. And record of Rhadinopsylla japonica from Kyusyu was also new. Paraceras melis flabellum, the peculiar parasite of N. procyonoides was collected from its own host and the fact that Monopsyllus argus was found on P. leucogenys will be proved by the reason of N. procyonoides is one of the food of P. leucogenys. The number of specimens collected other than P. leucogenys would become few, because of the most of those hosts have been treated not soon after death.View full abstractDownload PDF (379K) -
Kazuo YasutomiArticle type: Article
1960 Volume 11 Issue 1 Pages 36-41
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSEffect of octachlorodiprophylether (S 421), a synergist for pyrethrins and allethrin, was studied in an attempt to utilize as a synergist against resistant and susceptible colonies of the house fly, Musca domestica vicina and M. d. domestica. The result shows that the S 421 will be able to consider as a suitable synergist for pyrethrins and allethrin. In case of allethrin S 421 showed a definite superiority over piperonyl butoxide as has been known using European house flies. The p, p′-DDT or technical DDT plus octachlorodipropylether (S 421) showed a remarkable synergistic activity against the Japanese vicina, indicated the original high tolerance to DDT, as compared with the activity of p, p′-DDT or technical DDT alone. The optimum ratio of the content of S 421 to the content of DDT was 0.2 to 1. Similarly, the efficacy of γ-BHC or dieldrin added with S 421 at a ratio of 1 : 1-10 proved to be far higher than that of γ-BHC or dieldrin alone against the resistant populations, whereas it imparted a slight increase in efficacy against the susceptible populations.View full abstractDownload PDF (631K) -
Shunnosuke HirakosoArticle type: Article
1960 Volume 11 Issue 1 Pages 42-53
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSA series of experiment was made to determine the most efficient method to control the house fly with the insecticide-treated tapes. 1. Kinds of insecticide applied on the tape. Among the chemicals tested, 5% diazinon was found to give the most satisfactory results in both the initial and residual effects. DDVP was inferior in its residual effect though the initial effect was excellent. Malathion showed a long residual effect but the kill percentage was lower throughout the test period. Dieldrin, DDT and lindane gave no promising results to be applied in the tape method. 2. Installation of the tapes. The optimum size of the tapes to be installed in a room was found to be 2 to 3cm in width and 6 to 100cm in length as estimated from the number of flies alighted. In case that tapes were installed vertically from the ceiling, the average fly count was higher on wider tapes, but the count per unit of area become higher as the tapes were made narrow. When they were installed horizontally near the ceiling, the highest fly count was seen at the width of 2cm. The resting time of house fly on the narrower tape was longer than on the wider one. 3. Materials of choice of the tapes. When the same amount of diazinon was applied to various substrates, the initial effect against the house fly was by the order of indian paper, filter paper and cotton cloth, the residual effect, however, it was found to be the reverse, as parallel to the rate of absorption of the materials. The fact suggests that the insecticide was first absorbed into the substrates, and then gradually dispersed to the surface again. The view was also supported by the experiment that among various insecticides applied on a sheet of filter paper, diazinon, DDVP, lindane and dieldrin were found to disperse through another filter papers put in contact with the treated surface by the elapse of time, until the untreated surface became insecticidal to the flies exposed on it.View full abstractDownload PDF (1400K) -
Yoshiteru UsuiArticle type: Article
1960 Volume 11 Issue 1 Pages 54-55
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
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Katsushige Hori, Hisashi UshigoshiArticle type: Article
1960 Volume 11 Issue 1 Pages 55-
Published: April 05, 1960
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (168K)
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