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Volume 37 (1986)
- Issue 4 Pages 1-
- Issue 3 Pages 193-
- Issue 2 Pages 99-
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Volume 37, Issue 2
Displaying 1-12 of 12 articles from this issue
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Article type: Cover
1986 Volume 37 Issue 2 Pages Cover6-
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSDownload PDF (49K) -
Makoto HATAKOSHI, Tadashi OHSUMI, Hirosi KISIDA, Nobushige ITAYA, Isam ...Article type: Article
1986 Volume 37 Issue 2 Pages 99-104
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSThe new synthetic oxime ether compounds, S-21149 (propionaldehyde oxime O-2-(4-phenoxyphenoxy) ethyl ether) and S-21150 (propionaldehyde oxime O-2-(4-phenoxyphenoxy) propyl ether), which have insect juvenile hormone activity showed a pronounced high inhibitory effect of adult emergence against last instar larvae of Culex pipiens pallens, Aedes aegypti and Anopheles stephensi in laboratory tests. S-21149 was more effective against 4th (last)-instar larvae than 3rd-instar ones. It inhibited 100% adult emergence of C. pipiens pallens after only 1 min immersion at 0.1ppm. S-21149 and S-21150 also exhibited good persistence in an open outside condition.View full abstractDownload PDF (505K) -
Takaya IKEMOTO, SUMITRO, Willem PANJAITAN, Toshiro SHIBUYAArticle type: Article
1986 Volume 37 Issue 2 Pages 105-112
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSThe experimental evaluation of some anti-larval agents against Anopheles sundaicus, the main vector of the coastal malaria in North Sumatra was carried out in the field and laboratory. Susceptibility test in the laboratory indicated the high sensitivity of the 4th instar larvae of An. sundaicus to temephos (LC_<50>=0.0034ppm), Bacillus thuringiensis israelensis preparation (B.t.i.) (LC_<50>=0.1176ppm) and methoprene (EC_<50>=0.0004ppm). In the small-scale field test, the efficiency was clear when the wettable powder of temephos was applied at a concentration of 1ppm of the practical dosage. No larvae were found in the ponds for 1 week after the treatment. The practical efficacy was considered to continue for 2 weeks in the pond water. The efficacies of 0.5ppm dosage of powdered temephos or other larvicides were not always evident in the field. The native larvivorous fishes were examined for their predatory activity in the laboratory. Each one of Oryzias javanicus, Haplochilus panchax and Poecilia reticulata fed 18-22 individuals of 4th instar larvae per day. The integration of the fish and the larvicide for the larval control can be considered possible since each larvicide tested was less toxic to the fishes.View full abstractDownload PDF (575K) -
Toshihiko HAYASHIArticle type: Article
1986 Volume 37 Issue 2 Pages 113-120
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSThe sphaerocerid flies of synanthropy and hygienic importance are recorded from Japan. A key to the 37 species and 3 groups and the illustrations are given.View full abstractDownload PDF (890K) -
Toshiki AJI, Yasumasa TONGU, Heinan OH, Akira ISHIIArticle type: Article
1986 Volume 37 Issue 2 Pages 121-126
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSWe observed a pupation rate, an emerging rate, number of eggs laid and a hatching rate of Aedes togoi after exposure to two kinds of chemosterilants. An incidence of morphologically abnormal spermatozoa in the seminal vesicles was also examined by electron microscopy. The sterilization rate and the incidence of abnormal spermatozoa were 48.2 and 10.3%, respectively, at 0.01% metepa; 79.1,44.5,and 7.9,5.9%, respectively, at the concentrations of 0.05 and 0.01% hempa. However, the rates of occurrence of morphologically abnormal spermatozoa were lower than the sterilization rates. Although it seemed that there was little correlation between the sterilization rates and malformation rates of spermatozoa, the incidence of spermatozoa with multi-axial filaments increased with the sterilization rates.View full abstractDownload PDF (683K) -
Mutsuo KOBAYASHI, Nobuo OGURA, Hisashi YAMAMOTOArticle type: Article
1986 Volume 37 Issue 2 Pages 127-132
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSAbortive development of the filarial larvae, Brugia malayi, in the thorax of the refractory mosquito against the parasite was examined by a histological method. Until 24hr after infection G-cell of almost all of the larvae found in the thorax completed first cell division, however many of the larvae showed an abnormal appearance of cuticle. Until 48hr after infection almost all the larvae showed unusual features of cuticle and in some specimens prolapse of the cells were observed. On the 5th day after infection pigmentation around cuticle was observed on many larvae. Pigmentation which is blackish-brown in color remained unchanged in the thorax until the 10th day. The cellular response by the host mosquitoes, which was seen on the encapsulated larvae in the abdominal haemocoel, was not observed in the thoracic muscles.View full abstractDownload PDF (1864K) -
Kazuo BUEIArticle type: Article
1986 Volume 37 Issue 2 Pages 133-140
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSIn order to clarify their ability to over winter, the eggs, full grown larvae and 1-day-old pupae of Musca domestica, Phormia regina and Aldrichina grahami, were exposed to low temperatures from 8 down to 4℃. 1. The mortality of immature stages of flies was increased by lowering the temperature of exposure and by increasing the duration of the exposure period. 2. In general, the larva was the most tolerant stage to cold temperatures. Eggs, in comparison to larvae and pupae, were less tolerant. Exposure days required for 50% mortality in immature M. domestica exposed to 4℃ were 1.6-3.7,2.5-3.3 and 2.7-3.8 days for eggs, larvae and pupae, respectively. Those of P. regina were 2.1-2.6,10-13 and 3.6-5.5 days respectively, and those of A. grahami were 4.1,13 and 6.2 days. 3. A. grahami was the most tolerant to cold temperatures among three species of flies, followed by P. regina and M. domestica. 4. The tolerance to cold temperatures of M. domestica and P. regina which were collected from different districts were compared. The strains used in the experiment are as follows : M. domestica from Takatsuki, Nara, Tongduchon (Korea) and Bangkok (Thailand), and P. regina from Akita, Tokyo and Samegai. In the four M. domestica strains, the mortality of larvae exposed to cold temperatures was found to be significantly lower in the Bangkok strain than in other strains. In the three P. regina strains, the mortality of pupae was found to be significantly higher in the Akita strain than in the Tokyo and Samegai strains. 5. It is suggested that only an extremely small number of immature stages of flies overwinter in temperate climatic regions.View full abstractDownload PDF (731K) -
Yoshito WADAArticle type: Article
1986 Volume 37 Issue 2 Pages 141-152
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSJapanese species of the claggi group of the genus Culicoides were taxonomically studied. A new species, C. kyushuensis, was described, and a key to females of all the 6 Japanese species is given.View full abstractDownload PDF (1476K) -
Toshiaki IKESHOJIArticle type: Article
1986 Volume 37 Issue 2 Pages 153-159
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSThe spatial and temporal distributions of Culex tritaeniorhynchus were studied with sound traps at an unisolated 1.7 ha area of a paddy field in Chikugo City from Jul. 23 to Aug. 4. Fourteen traps were placed on black cloth swarm markers at 20-50m distance from each other, and a 370Hz, 100 or 110dB sound was emitted for 20min during the swarming time, 19 : 42 to 20 : 02. As the results, 20,141 males and 1,116 females in total were caught. There was a sex-biased spatial distribution; males evenly distributed over the breeding paddy, but some males nightly migrated out to a pigpen nearby. The females, on the contrary, took the host appetent flight and heavily concentrated in the vicinity to the pigpen. The significant reduction of blood-fed females trapped and resting in vegetation was observed towards the end of experiment. This reduction would be attributed to the decreased emergence of mosquitoes due to the mid-season water drainage in the paddy or the increased rates of virgin females due to the possible mating disruption by sound, or both.View full abstractDownload PDF (635K) -
Kiyoshi KAMIMURA, Ryo ARAKAWAArticle type: Article
1986 Volume 37 Issue 2 Pages 161-162
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSA mature larva of a psychodid fly was detected in fresh urine of a woman at the age of 69 who has been suffering from cystitis. The specimen was 9mm long. The colour was grayish white in the body and dark brown in the head, dorsal plates and siphon. There were 3 dorsal plates on each of the abdominal terga second to seven. The specimen was identified as Telmatoscopus albipunctatus Williston from its morphological characteristics. This case is considered to be the first report on human urinary myiasis due to this species.View full abstractDownload PDF (348K) -
Kiyoshi KAMIMURA, Ryo ARAKAWAArticle type: Article
1986 Volume 37 Issue 2 Pages 163-164
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSFive mature larvae of a flesh fly were recorded from the nasal cavity of a 28-year-old man with terminal seminoma. These larvae, approximately 15-16mm long, had been reared at room temperature. Subsequently, 3 male and 2 female flies emerged. The specimens were identified as Boettcherisca peregrina Robineau-Desvoidy from morphological characteristics. This is the first report on human nasal myiasis due to this species.View full abstractDownload PDF (372K) -
Article type: Cover
1986 Volume 37 Issue 2 Pages Cover8-
Published: June 15, 1986
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSDownload PDF (60K)
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