Medical Entomology and Zoology

[title in Japanese]

Article type: Cover
2003 Volume 54 Issue 3 Pages Cover9-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.Cover9

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[title in Japanese]

Article type: Cover
2003 Volume 54 Issue 3 Pages Cover10-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.Cover10

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App15-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App15

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Biological notes on the flies emerging from the feces of great cormorant in Japan (Diptera)

Kenzou YAMAGISHI, Tsunemaru OKADOME, Manabu INO

Article type: Article
2003 Volume 54 Issue 3 Pages 253-256
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.253

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A total of 11 genera and 13 species belonging to 9 families of the dipterous insects were reared from feces of the great cormorant (Phalacrocorax carbo hanedae Kuroda) in Chita, Aichi Prefecture, Central Japan. Of the 13 species of flies reared, 3 were markedly predominant, Parasarcophaga similis (Sarcophagidae), Siphunculina nidicola and S. simulata (Chloropidae). Among these species, P. similis was the most dominant fly, which constituted 34.4% of the total, and reached the highest population in early December. S. nidicola (26.1% of the total) and S. simulata (22.8%) have also produced large numbers. The massive emergence peak of the former showed in early September, and the latter in early October. These 3 specific cumulative percentages amounted to about 83% of the total individuals. The emergence season of P. similis was from June to December, the longest period of all the reared species. Only one species, Anthomyia illocata (Anthomyiidae) was commonly found among the known 5 species which were reared from cormorant feces in Japan. Megaselia scalaris (Phoridae) and Allotrichoma nigriantennalis (Ephydridae) were investigated and found to emerge from small animal excreta for the first time.

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Laboratory rearing method of Anopheles minimus (Diptera: Culicidae) from Ishigaki Island, the Ryukyu Archipelago, Japan

Yukiko HIGA, Takako TOMA, Susumu SAITA, Atsuko TAKEI, Ichiro MIYAGI

Article type: Article
2003 Volume 54 Issue 3 Pages 257-266
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.257

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Biological studies on larval development, insemination and oviposi- tion of Anopheles minimus from Ishigaki Island, the Ryukyu Archipelago, were conducted under laboratory conditions. The larval developmental period was shortened and high pupation and emergence rates were obtained when larvae were reared under the conditions of the non-aeration method, standard food volume and 200-300 larvae per container. Insemination rate was increased with adult density per cage as well as cage size. The number of eggs per fed female was dependent on the method for oviposition. The study showed the following conditions to be suitable for rearing and obtaining a large number of An. minimus originated from Ishigaki Island, the Ryu- kyus: (1) the drip method for larval rearing should be used in the early generation to estimate suitable food volume and after that, by non-aeration; (2) 200-300 larvae per pan with food volume of 25 mg for the 1st, 50 mg for the 2nd, 100 mg for the 3rd and 150 mg for the 4th-instar larvae; (3) adult cage larger than at least the medium-sized cage; and (4) individual oviposition method in small vials.

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Distribution and seasonal prevalence of Anopheles minimus Theobald (Diptera: Culicidae) in the Yaeyama Island group (except Ishigaki Island), Ryukyu Archipelago, Japan, 1999-2000

Takako TOMA, Ichiro MIYAGI, Hidechika MURAKAMI, Hitoshi NEROME, Masato ...

Article type: Article
2003 Volume 54 Issue 3 Pages 267-274
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.267

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In order to know the distribution and seasonal appearance of Anopheles minimus Theobald in the Yaeyama Island group, except Ishigaki Island, a comprehensive larval survey was carried out in Iriomote, Kohama, Hateruma and Yonaguni Islands from 1999 to 2000. Immatures of An. minimus were found in 4 out of 20 habitats examined in Iriomote Island, and 6 out of 13 habitats including streams, springs and ground pools near the springs examined, in Kohama Island. The abundance of the immatures in Hora Stream of Iriomote Island, and a spring of Kohama Island, showed seasonal variation which was positively correlated with water temperature. The immature was not collected during winter season (December to February) in Hora Stream. The density was high in August and October 1999 and June 2000, being 169, 151 and 111 larvae/100 dips, respectively. In the spring of Kohama, the density was 268 in August 1999, and 516 in June 2000. This is the first record of An. minimus for Kohama Island. The immature was not found in Hateruma and Yonaguni Islands.

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Photoperiodically induced delayed oogenesis in the blow fly, Aldrichina grahami (Diptera: Calliphoridae)

Hiromu KURAHASHI, Chieko SHUDO

Article type: Article
2003 Volume 54 Issue 3 Pages 275-281
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.275

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Delayed oogenesis in a Japanese blow fly, Aldrichina grahami (Aidrich), was induced both under long-day and short-day photoperiods at moderate temperatures (20-23℃), but was terminated within 11 days after protein ingestion without changing the photoperiod or temperature. Long days (LD 14:10-16:8) produced delayed ovarian development in more than 95% females whereas a short day (LD 10 : 14) did it in about 50%. About 30% of females newly eclosed under long days retained undeveloped ovaries with previtellogenic follicles more than two weeks. This may be considered to be responsible for completing long-term aestivation in the montane zone. The characteristics of delayed oogenesis in the blow fly are discussed in terms of oligopause and diapause.

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Host feeding profiles of Rhodnius prolixus and Triatoma dimidiata in Guatemala (Hemiptera: Reduviidae: Triatominae)

Hitoshi SASAKI, Regina ROSALES, Yuichiro TABARU

Article type: Article
2003 Volume 54 Issue 3 Pages 283-289
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.283

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Collections of triatomine bugs inhabiting inside dwellings at villages of two prefectures in Guatemala were carried out and 293 individuals of Rhodnius prolixus and 170 individuals of Toriatoma dimidiata were obtained, both of which are the main vector species of Chagas' disease in Guatemala. Of these, 202 (68.9%) of R. prolixus and 157 (92.4%) of T. dimidiata were engorged. Blood meal analysis with ELISA revealed that the sources of 97 blood meals (48.0%) of R. prolixus which were identified to be human (28.2%), followed by chicken (7.9%) and opossum (7.4%). Eighty two blood meals (52.2%) of T. dimidiata and they were to be human (30.6%) followed by opossum (15.3%) and cow (7.0%). Multiple feedings were observed 12 blood meals (12.4%) of R. prolixus and 16 (19.5%) of T. dimidiata. It turns out that triatomine bugs inhabiting inside of the dwellings in Guatemala prefer human most as the blood source.

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Eltonella yagii (Acari: Trombiculidae): A new species of chigger mite collected from soil samples in Kanmurijima Island, Kyoto, Japan

Mamoru TAKAHASHI, Hitoko MISUMI, Hiroshi SUZUKI

Article type: Article
2003 Volume 54 Issue 3 Pages 291-293
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.291

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A new chigger mite species, Eltonella yagii sp. nov. collected from the soil samples of nest tunnels of Streaked shearwaters, Calonectris leucomelas, is described and illustrated. It is closely related to E. ichikawai (Sasa, 1952) and E. gerrhosauri (Lawrence, 1949).

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An experimental analysis on the activity of the new generation of Amblyomma testudinarium Koch nymphs (Acari: Ixodidae) in summer

Kazuyoshi FUJIMOTO

Article type: Article
2003 Volume 54 Issue 3 Pages 295-297
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.295

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The activities ofAmblyomma testudinarium nymphs collected from the field in May, August, and October 2001 were observed in plastic cylinders placed outdoors. The activity of the field-collected nymphs in May was found from June to September, but disappeared from October to August 2002. The activity of the field-collected nymphs in August was found from September to November and in the spring (March to June) of 2002. However, the number of the active nymphs was small in the spring of 2002. The field-collected nymphs in October showed high activity in the spring (March to June) of 2002. Since the nymphs which molted in 2000 (old generation) did not survive until the spring of 2002, the field-collected nymphs in August and October 2001 appeared to include the new generation (molted in 2001). Thus, the participation of the new generation of A. testudinarium nymphs appears to occur from summer, although the number is small.

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Studies on chironomid midges in winter from the Tone River, Gunma Prefecture

Nobuhisa TANAKA, Setsuko HASHIZUME, Masahiro ONOGAWA, Manabu SASA

Article type: Article
2003 Volume 54 Issue 3 Pages 299-303
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.299

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Collections of chironomid midges were carried out at 5 stations of the Tone River, in Gunma Prefecture, with an insect net in the daytime and also by laboratory rearing of bottom samples collected in November and December, 2000. As the result, a total of 147 males of the chironomids were collected. They were classified into 16 genera and 33 species, including 16 new species. Most of them were seen in clear water.

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Preliminary studies on the termination of behavioral diapause of Ixodes persulcatus Schulze adults (Acari: Ixodidae) : Effects of the exposure to a medium-day photoperiod

Kazuyoshi FUJIMOTO

Article type: Article
2003 Volume 54 Issue 3 Pages 305-307
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.305

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The effects of photoperiod on the termination of behavioral diapause of Ixodes persulcatus Schulze adults reared in a laboratory (24°C, 16L-8D photoperiod) from egg to adult ecdysis was examined in plastic cylinders which were placed outdoors. The activity of the adults which were kept in the laboratory until March 2002 after they had molted (August 2001) and then transferred into a plastic cylinder was rarely found in the spring. However, the adults which were kept in the laboratory (16L-8D photoperiod) until August 2001 after molting (June 2001) and then exposed to a 12L-12D photoperiod (24°C) until March 2002 showed high activity in the spring. These results suggest that the exposure to a medium-day photoperiod is important for the termination of behavioral diapause of I. persulcatus adults.

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[title in Japanese]

[in Japanese]

Article type: Article
2003 Volume 54 Issue 3 Pages 309-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.309

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages 311-313
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.311

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App16-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App16

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App17-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App17

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App18-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App18

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App19-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App19

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App20-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App20

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App21-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App21

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App22-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App22

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[title in Japanese]

Article type: Appendix
2003 Volume 54 Issue 3 Pages App23-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.App23

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[title in Japanese]

Article type: Cover
2003 Volume 54 Issue 3 Pages Cover11-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.Cover11

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[title in Japanese]

Article type: Cover
2003 Volume 54 Issue 3 Pages Cover12-
Published: September 15, 2003
Released on J-STAGE: August 07, 2016

DOIhttps://doi.org/10.7601/mez.54.Cover12

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