Medical Entomology and Zoology
Online ISSN : 2185-5609
Print ISSN : 0424-7086
ISSN-L : 0424-7086
Volume 30, Issue 4
Displaying 1-15 of 15 articles from this issue
  • Article type: Cover
    1979 Volume 30 Issue 4 Pages Cover12-
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
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  • Hiromu KURAHASHI, Watanasak TUMRASVIN
    Article type: Article
    1979 Volume 30 Issue 4 Pages 297-304
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
    Six new calliphorid species, Bengalia asymmetria sp. nov., B. chiangmaiensis sp. nov., B. pseudovaricolor sp. nov., Melinda nigripalpis sp. nov., Onesia parafacialis sp. nov., and Pollenia chotei sp. nov., are described from Thailand with the illustration of male genitalia.
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  • George O. POINAR, Hiroyuki TAKAOKA
    Article type: Article
    1979 Volume 30 Issue 4 Pages 305-307
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
    The nematode, Isomermis benevolus sp. n. (Mermithidae) is described as a parasite of Simulium metallicum Bell. (Diptera : Simuliidae) in Guatemala. This is the first mermithid described from a Central American vector of Onchocerca volvulus, causal agent of the River blindness disease. The terminal mouth, shape and size of the amphids and spicules and length of the vagina separates this species from all previously described members of the genus Isomermis. The parasite has been recovered from several localities in Guatemala.
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  • Article type: Appendix
    1979 Volume 30 Issue 4 Pages 308-
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
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  • Yasumasa KUWAHARA, Hiroshi FUKAMI, Shojiro ISHII, Katsuhiko MATSUMOTO, ...
    Article type: Article
    1979 Volume 30 Issue 4 Pages 309-314
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
    As the alarm pheromone of the mold mite, Tyrophagus putrescentiae (Schrank), neryl formate, (Z)-3,7-dimethylocta-2,6-dien-1-ol formate, was emitted or discharged from a pair of their latero-abdominal gland (or of oil gland) to the environment and air-borne-ly stimulated surrounding mites to escape. These evidences were demonstrated.
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  • Akifumi HAYASHI, Eisuke FUNAKI, Masato FUJIMAGARI, Rokuro KANO
    Article type: Article
    1979 Volume 30 Issue 4 Pages 315-318
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
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    Houseflies have been collected at 14 spots scattered in 9 prefectures in the Tohoku, Hokuriku and San'in areas, and their levels of sensitivity to 8 kinds of insecticides were studied. The results are shown in Table 1. It was found that the houseflies in all 14 spots showed a decline of sensitivity to Malathion and fenitrothion. Malathion LD_<50> : Nagai-city colony, 21.826μg&acd;Takizawa colony, 131.513μg. Fenitrothion LD_<50> : Koyama-cho colony, 0.849μg&acd;Morioka-city colony, 16.557μg. However the houseflies did not show any decline of sensitivity to dichlorvos (DDVP) and resmethrin.
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  • Jeffrey L. K. HII
    Article type: Article
    1979 Volume 30 Issue 4 Pages 319-328
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
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    To evaluate and compare the effectiveness of sumithion, DDT and malathion for the control of Anopheles balabacensis balabecensis Baisas, the main malaria vector in Sabah, a small-scale field trial was carried out in the Kuala Penyu district in 1976-1977. Two rounds of sumithion and DDT spraying were implemented in October 1976 and June 1977 and three rounds of malathion spraying in October 1976,March and September 1977. The effectiveness of each insecticide was evaluated by indoor and outdoor man-biting, floor sheet, exit window trap collections, vector age determination of female mosquitoes and biological evaluation. The indoor man-biting and resting density was reduced considerably in sumithion and malathion huts after spraying. In the DDT hut the density was drastically reduced to virtually nil. No change in outdoor biting was observed in any of the three stations and there was a marked repellency towards An. bal. balabacensis in the early months after DDT spraying. No increase in the exodus of mosquitoes was observed from sprayed huts but there was a rise in the number of unfeds leaving the sumithion hut after the 1st spraying cycle. Exit trap and total mortalities decline up to 8 and 5 months after sumithion and malathion applications respectively. Huts sprayed with sumithion and malathion exerted a considerable toxic effect on mosquitoes in cages suspended within the enclosed rooms without contact with treated surfaces. At dosages of 2.0g/m^2 the two insecticides gave effective kills (70-100%) for periods of 4-4 1/2 months, based on 1/2-hour exposure to the treated surfaces.
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  • Kikuo MATSUO, A. J. O. Ochoa
    Article type: Article
    1979 Volume 30 Issue 4 Pages 329-333
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
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    The hairs on dorsal cuticles of the 6th and 7th abdominal segments of black fly larvae of 6 species from Guatemala are described and illustrated with the aid of a scanning electron microscope. The single hairs were recognized in all species, but the branched hairs in only one species, Simulium (Simulium) ochraceum
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  • Article type: Appendix
    1979 Volume 30 Issue 4 Pages 334-
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
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  • Syoziro ASAHINA
    Article type: Article
    1979 Volume 30 Issue 4 Pages 335-353
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
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    In this second part of this series of works a taxonomic revision was made regarding two genera of the Tribe Ischnopterites, Episymploce and Scalida, found in the Ryukyus and Taiwan. Genus Episymploce Bey-Bienko A redefined generic diagnosis of Episymploce, compared with those of Symploce s. str., is as follows : a. Male supraanal plate divided distally or asymmetrically formed, usually with a sharp median incision with ventral spinous projection (s). b. Male hypandrium definitely asymmetrical, its extreme base furnished with sharp spine (s) on each side. c. The lateral margin of 9th tergite covers the sides of hypandrium, sometimes provided with a small spine on this margin. d. In all the species examined left phallosome of males sickle-shaped, turning at right angle with the "handle" abruptly thickened. e. Female supraanal plate is, in general, slightly divided at the apex. 9. Episymploce sinensis (Walker) A remarkable reddish brown species with broad black marginal area in the wings. Shiraki (1931) misidentified one female of this species as a male Blattid, "Periplaneta apicalis Shiraki" together with a female of a Hebardina species! The type locality of sinensis (Walker) is "Hong Kong", then recorded from "Peking" and "Nanking". In Taiwan this species seems to be very rare. 10a. Episymploce formosana formosana (Shiraki) As stated in my previous Note, Shiraki (1931) synonymized this species with "Ischnoptera modestiformis Karny", but I found that this is a good species examining both the type materials. Perhaps not uncommon in Taiwan. Based on the description and type material Shiraki's "Ischnoptera asymmetrica" appears a synonym of this species. 10b. Episymploce formosana yoshinoe (Shiraki) In examining the type material of "yoshinoe" preserved in the National Taiwan University the prothorax and wings are much broader than those of "formosana". But since I could not recognize any distinct difference in the structure of male hypandrium I now lower yoshinoe on a subspecific level of formosana. In this connection I have never found Shiraki's "yoshinoe var. brevielytra" in the collection of National Taiwan University, there was, instead, a female labelled "makiana n. sp." (nom. nud.) which also appears to be a formosana yoshinoe. 11. Episymploce princisi nov. Karny (1915) misidentified this species to be Burmese "Ischnoptera multiramosa Brunner v. W." which seems quite different from ours at least in the absence of dark spots on the prothorax. Princis's new name "karnyi" is a nomen nudum, and since no reliable description has ever been made I gave it here based upon my new material taken in the mountains of Taiwan. 12. Episymploce amamiensis Asahina This slender species is allied to the preceeding one at least in the presence of paired dark stripes on the prothorax, but differs from princisi in the character of male hypandrium and female supraanal plate. Distributed from Amami Islands as far north as Yakushima. 13. Episymploce yashiroi (Shiraki) A small pale brownish species, first described from Okinawa and later found rather common throughout the other Ryukyu Islands south of Okinawa. I examined one male specimen taken in Taiwan (Baibara, in coll. Hokkaido Univ.), and believe that "Symploce taiwanica Bey-Bienko" (1969) is the same species. Several Episymploce specimens in the Micronesian collection (♂♂♀♀ Babeldaub, Palau Islands) seem also the same or very closely allied species, and I even suppose "Symploce vietnami Bey-Bienko" taken in Vietnam appear to be yashiroi if seen from the brief picture given by Bey-Bienko. 14. Episymploce taiheizana nov. A very slender species with a round dark spot on the prothorax. Confined to Taiheizan Mountains in North Taiwan. Genus Scalida Hebard Superficially these insects lo

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  • Yutaka NISHIJIMA, Mitsuhiro IWASA
    Article type: Article
    1979 Volume 30 Issue 4 Pages 355-359
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
    The flies occurring from dungs of the wild brown bear, Ursus arctos yesoensis Lydekker, were investigated in Hokkaido from 1976 to 1978. The following ten species were reared from 14 dungs collected in mountainous areas : Lasiomma octoguttatum (Zetterstedt), L. iwasai Suwa, Pyrellia tateyamensis Shinonaga, Mesembrina resplendens Wahlberg, Helina deleta (Stein), Mydaea sp., Fannia canicularis (Linnaeus), Fannia sp., Sepsis monostigma Thomson and Sargus metallinus Fabricius. The first three species were predominant in number among flies reared.
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  • Hideki SATO, Masayuki YASUNO
    Article type: Article
    1979 Volume 30 Issue 4 Pages 361-366
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
    A standard method for evaluation of the relative effectiveness of insecticides on Chironomid larvae was developed. After 24 hours exposure to insecticide in a beaker, Golenkinia radiata, a kind of green algae was added as a nest material and one hour later the success or failure in making a nest by Chironomid larvae was assessed. Most species used made a nest within 15 minutes, normally when the algae were added. The larvae suffered from the insecticide could not make a nest at all or could not complete a nest. There was no significant difference between the dose-response regression based on the deadalive method and that based on the method of success-failure of nest making. However, the latter was superior as a criterion because of the clarity and easiness of evaluation, compared with the dead-alive method in which some alive larvae would be regarded as dead. The variation of mortality in Chironomid larvae due to the difference in exposure period to the insecticide from 24 hours to 72 hours was studied. No significant difference could be found in some species in the 50 percent lethal concentration, whereas some other species showed approximately four times the difference in the concentration between a 24-hour exposure and a 48-hour exposure. Susceptibility of four species of Chironomid larvae to various insecticides was evaluated by the method of success-failure of nest making. The dead-alive method, however, was applied to Procladius sp. which dose not make a nest. Paratanytarsus parthenogenetica, which had been colonized in the laboratory, was the most susceptible in general to the insecticides tested, whereas Chironomus yoshimatsui, which is an inhabitant of drains and one of the important pest insects in Japan, showed a rather high tolerance to most insecticides. Temephos showed a high toxicity with Chironomid larvae in the present study. However, Procladius sp. showed exceptionally low susceptibility to this insecticide.
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  • Takeshi MATSUMURA
    Article type: Article
    1979 Volume 30 Issue 4 Pages 367-370
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
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    The emergence inhibitory effect of a juvenile hormone analogue, methoprene, was evaluated for the larvae of the stable fly, Stomoxys calcitrans (L.), by the fly medium method and dipping method in the labaratory. In both methods no larva was apparently effected in pupation, but many pupae were inhibited from emergence. By the fly medium method most emergences were inhibited by the concentrations above three ppm, except a single fly with three-ppm treatment. Among the emerging adults treated with lower concentrations, malformed flies with reduced wings and tiny body size appeared frequently. The malformation ratio increased with higher concentrations. By dissecting dead puparia inhibited from emergence under a binocular microscope, the state of metamorphosis inside was morphologically examined. Many remained in larval form in control. On the contrary, most of them in treatment finished adult morphogenesis and reached the pre-emergence state, completing cuticularization and pigmentation and having apparently normal bodies. A number of malformed adult forms with the incomplete abdominal segmentation inside puparia appeared in higher concentrations by the fly medium method. Therefore, it was hypothesized that methoprene might act inhibitorily on the emergence mechanism and metamorphosis in the pupal stage of stable flies.
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  • Hiroshi SUZUKI
    Article type: Article
    1979 Volume 30 Issue 4 Pages 371-374
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
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    A new species of trombiculid mite, Walchia (W.) koshikiensis is described and illustrated. The new species resembles Walchia ogatai (Sasa et Teramura, 1951) but is obviously different from W. ogatai in the pentagonal shape of the scutum, which is wide than long, and in having the nude galeal setae.
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  • Article type: Cover
    1979 Volume 30 Issue 4 Pages Cover14-
    Published: December 15, 1979
    Released on J-STAGE: September 04, 2016
    JOURNAL FREE ACCESS
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