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Volume 12 (1961)
- Issue 4 Pages 233-
- Issue 3 Pages 165-
- Issue 2 Pages 111-
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Volume 12, Issue 4
Displaying 1-11 of 11 articles from this issue
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Article type: Cover
1961 Volume 12 Issue 4 Pages Cover8-
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (39K) -
Junichi AokiArticle type: Article
1961 Volume 12 Issue 4 Pages 233-238
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (504K) -
Kiyotoshi Kaneko, Rokuro Kano, Tsunetaro OkazakiArticle type: Article
1961 Volume 12 Issue 4 Pages 238-247
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDescriptions of six species of phorid flies belonging to five genera are given in the present paper. These species are as follows : 1. Diploneura (Dohrniphora) cornuta (Bigot, 1857) 2. Diploneura (Diploneura) peregrina (Wiedemann, 1830) 3. Aneurina unispinosa (Zetterstedt, 1860) 4. Stichillus matsumurai Schmitz, 1952 5. Conicera (Tritoconicera) breviciliata Schmitz, 1926 6. Megaselia (Aphiochaeta) spiracularis Schmitz, 1938 Of these, the male of Stichillus matsumurai was described for the first time by the authors, although the female had been described by Schmitz previously. Aneurina unispinosa was found in Hokkaido for the first time in Japan. Diploneura cornuta and Megaselia spiracularis are very common species in Japan, and Diploneura peregrina and Conicera breviciliata are commonly found in Tokyo. Keys to subfamilies and important genera of Phoridae are also given in this paper.View full abstractDownload PDF (1109K) -
Kazuki OgataArticle type: Article
1961 Volume 12 Issue 4 Pages 247-249
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe entrance and exit of the house flies in a residence of Yokohama city, Japan, was observed by the mark and release method. The house flies resting on the ceiling of this residence at night were collected and were used for the experiment. It seems that all the house flies in the house were caught by this method. The flies marked on the scutum with the colour paints, white, yellow and blue, were released over three days. After the release, the remaining marked flies and the newly invaded ones were counted on the ceiling at nights on succeeding days. As shown in Table 2, the released flies remained the period of four to seven days, and they showed the decrease of 30〜72% of the numbers of the previous night. It was observed that some flies once disappeared appeared again the next night.View full abstractDownload PDF (349K) -
Atsushi KokuboArticle type: Article
1961 Volume 12 Issue 4 Pages 250-252
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESS1. The parasites recovered from the pupal collections of pine-moth in Kashima district, Ibaraki Prefecture during June 12 to July 5, 1961 are shown in Table 2. The most abundant species was Sarcophaga harpax Pandelle and it was recovered from 10 per cent of the field-collected pupae. 2. The number of Sarcophaga harpax found in each host was 1 to 21, and mostly 3 to 8.(Fig. 1) 3. Brachymeria minuta Linne was recovered from the Sarcophaga pupa as the secondary parasite.View full abstractDownload PDF (341K) -
Yoshio KurashigeArticle type: Article
1961 Volume 12 Issue 4 Pages 253-256
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSMosquitoes were collected in the dwellings at Tomatsuri from June to September in 1948, at Wakakusa from July to September in the same year, and at Kanuma from July to October in 1951. 1) Mosquitoes of four genera and six species were observed in these three places. The species of mosquitoes found in each places. The species of mosquitoes found in each place was almost similar to one another. These mosquitoes were constituted from an overwhelmingly great number of Culex pipiens and a small number of Anopheles sinensis, Culex tritaeniorhynchus and Culex bitaeniorhynchus. 2) The most important species that commanded the seasonal occurrence of mosquitoes in the dwellings was C. pipiens. This species appeared in small numbers in the middle of June and reached the highest population in the middle of July. Then, they decreased gradually in number and became still fewer in August and September. After October they could not be found at all.View full abstractDownload PDF (470K) -
Kikuo MatuoArticle type: Article
1961 Volume 12 Issue 4 Pages 257-261
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSObservation on the successions of larvae and pupae of mosquitoes breeding in basins for holy water hollowed on gravestones surrounded by bamboo groves were carried out in Kyoto from January to December, 1957. 946 individuals belonging to 4 genera including 6 species were collected, of which Aedes japonicus (30.7%), Aedes flavopictus (26.0%) and Uranotaenia bimaculata (24.5%) were large in number, Aedes albopictus (15.1%) was next to them, and Tripteroides bambusa (3.3%) and Armigeres subalbatus (0.4%) were rather rare. The seasonal prevalences of these species are shown in Fig. 1. Aedes japonicus and Uranotaenia bimaculata appeared all the year around and the former was dominant from October to early in May. Aedes flavopictus, Aedes albopictus and Tripteroides bambusa appeared from spring to autumn and Aedes flavopictus was dominant in summer.View full abstractDownload PDF (652K) -
Katsuhiko MatsumotoArticle type: Article
1961 Volume 12 Issue 4 Pages 262-271
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSExperiments were made to observe the effects of environmental humidity and of the moisture contents of various stored food products on the breeding of the grain mite, Tyrophagus dimidiatus. The humidity was regulated by keeping the materials in glass vials containing saturated solutions of various salts, such as K_2CO_3 (46% R.H.), CaCl_2 (53% R.H.), NaCl (70% R.H.), NaNO_3 (77% R.H.) and of water (95% R.H.). All experiments were made at 25℃. Using powdered materials as the food for the mites and relatively low moisture contents, such as laboratory animal food (6.6% water content), shichimipepper (8.8%) or dried yeast (4.4%), breeding of the mites shows the best condition at the highest humidity of 95% R.H. With the dried and sliced fishmeal (kezuribushi), which water content rapidly balances with the relative humidity of the environment, the best breeding of the mites were seen at 85 to 75% R.H. In the case of rice which contained 15.0% of water, less effects of the relative humidiy were seen both on the growth of the mites and on changes of water contents. Water contents of the materials to be tested were also found to affect the breeding of the mites. Both in powdered laboratory animal food in dried yeast, the optimum water content for the growth of the mites was seen at 17.7% and 16.6% respectively, and their breeding seemed to be interfered as it became either lower or higher from the level. By using dried yeast, powder milk and skim milk as the material, experiments were designed to observe the speed of breedings of the mites in the food containing different grades of water contents and kept at different relative humidities. In the initial few weeks, the best breeding was seen in lots with low moisture contents and kept at high relative humidities as well as in those with 18.0% water content and kept at 75% R.H. In the later stages after several weeks, the highest mite counts were seen in those kept at 75% R.H. indifferent from the initial water contents of the foods. Although their relative effects seem to differ greatly by the nature of the food to be tested, through these experiments, it has been demonstrated that both relative humidity of the environment and the moisture content of the materials are the essential factors for the breeding of the mites. For the purpose of preventing the stored food products and some drugs from breeding of the mites, either dessication of the materials or the storage at low humidity was found to be the effective measure.View full abstractDownload PDF (1139K) -
Koji OgushiArticle type: Article
1961 Volume 12 Issue 4 Pages 272-280
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe experiments have been carried out to examine the effect of attractive slug killers containing metaldehyde. The slugs, Limax flavus L. used in this experiment were collected from the houses. Ten grammes of test chemical were set at the corner of 4 meters diametric circles each, and the following results were obtained. 1) Metaldehyde was proved highly attractive to slug. In case that the attractive slug killer was continuously applied for one week, the following effects for the slugs were got. Metaldehyde content The attractivity ratio 0.1% about 10% 0.5% about 30% 5.0% about 60% 2) Auxiliary materials such as rice-bran, wheat flour and sugar added to metaldehyde were not so influencial on the effect of attractive power. 3) The mortality ratio did not increased by mixing lindane, dieldrin, sodium pentachlorophenate, calcium arsenate, or diazinon with metaldehyde. 4) Metaldehyde had the ability to attract the slugs within 2 meters around. The most effective method was using the chemical in a small lump. On basing the above informations, the field examination was done for one week at Yoshizuka, Fukuoka city as follows : The lump of 10 grams attractive slug killer (3% of metaldehyde content) was set at the side of water way in kitchen. The slugs attracted were found dead or anesthetic within 50cm diametric circle. The most of slugs obtained were Limax flavus L. and a few of Jucilaria confusa Cockerell. The slugs got were totally 1, 410, and were 21 per house. By this examination, the attractive slug killer containing metaldehyde was proved to be highly effective in practical use.View full abstractDownload PDF (855K) -
Yasuhiro OsadaArticle type: Article
1961 Volume 12 Issue 4 Pages 280-283
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSUsually a poisonous bait for rat control is prepared with as large amount of poison as to kill a rat, even if a rat eats a part of the bait. However, in some cases, rats show a shyness of the bait so prepared, and also the bait is highly toxic to other animals. This study was made for the purpose to increase the rodenticidal effect of the bait by reducing the amount of poison, thallium sulphate, in each bait and increasing the bait consumptions of laboratory white mouse. Favourable results were obtaind by the use of bait containing 0.12% of thallium sulphate.View full abstractDownload PDF (433K) -
Kazuo Yasutomi, Shigeru Nakayama, Seiichi Sasaki, Tamotsu Iwahara, Nor ...Article type: Article
1961 Volume 12 Issue 4 Pages 283-288
Published: December 25, 1961
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSControl tests of the diazinon-resistant house fly were conducted during 28 May to 30 July, 1961, in Mihara area of Hokota Village, Ibaraki Prefecture. The results are summarized as follows : 0.5% diazinon emulsion, 0.5% Nankor emulsion and 0.3% Dipterex・0.2% DDVP emulsion were treated as residual sprays in 3 areas where diazinon had been heavily applied in the previous year. In the cases of Nankor and a mixture of Dipterex and DDVP, the fly population estimated by ribbon traps decreased markedly through the period of the experiment. On the other hand, the effect of diazinon was rather unsatisfactory. Dimethylan bait gave satisfactory control effect against the diazinon-resistant fly for more than 15 days.View full abstractDownload PDF (682K)
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