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Volume 25 (1974)
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Volume 25, Issue 3
Displaying 1-16 of 16 articles from this issue
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Article type: Cover
1974 Volume 25 Issue 3 Pages Cover10-
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (56K) -
Alex Fain, Shiro OSHIMA, van BRONSWIJKArticle type: Article
1974 Volume 25 Issue 3 Pages 197-203
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe new species described here has been found in the dust of several houses in Japan and in two houses in Surinam. This new species differs from the single valid species of the genus Hirstia, H. chelidonis Hull, 1931 (=Dermatophagoides passericola Fain, 1964), in both sexes by the smaller size of the body and of the posterior legs; in the male by the relatively greater size of leg IV compared to leg III; in the female by the distinct sclerotization of the cuticle of the posterior region of the dorsum, especially around the d5 and l5 setae and immediately in front of the latter.View full abstractDownload PDF (638K) -
Kazumi NISHIDAArticle type: Article
1974 Volume 25 Issue 3 Pages 205-210
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSOne new species of genus Fannia is described from Japan (Honshu and Amami-Oshima Is.) and Taiwan. It is difficult to determine the status of the species-group. Regarded from the genitalic structure the present species seems to belong to the pretiosa group, and to be closely allied to Fannia horii Kurahashi and F. tunisiae Chillcott. Fannia coracula Collin, F. mollissima (Haliday), F. nigra Malloch and F. vesparia (Meade) are newly recorded from Japan. European F. nigra has not hairs on posterior inner margin of hind coxa, but some of the Japanese specimens have setulae on hind coxae. Although this character is very important in the identification of the genus Fannia, it is not so substantial in F. nigra.View full abstractDownload PDF (591K) -
Satoshi SHINONAGA, Rokuro KANOArticle type: Article
1974 Volume 25 Issue 3 Pages 211-215
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe 3rd stage larvae of 4 species belonging to the genus Morellia R.-D. from Japan are described and figured. Those are M. saishuensis Ouchi, M. hortensia (Wiedemann), M. hortorum (Fallen), and M. aenescens R.-D. External characters of those species are similar each other, however, posterior spiracles of saishuensis, and shape and size of anterodorsol spines in each species are characteristic. Those are most useful characters for identification of Morellia-larvae. The larva of M. saishuensis is newly described in this paper.View full abstractDownload PDF (1435K) -
Kiichi UEMOTO, Osamu ONISHI, Takeshi ORIIArticle type: Article
1974 Volume 25 Issue 3 Pages 217-223
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDescriptions of all stages of Simulium (Gnus) kisoense n. sp. collected from the rapid streams on the foot of Mt. Ontake, Nagano Pref., Japan, are given with the illustrations.View full abstractDownload PDF (649K) -
Kazuo YASUTOMI, Toshio SHONOArticle type: Article
1974 Volume 25 Issue 3 Pages 225-228
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSTopical application tests were made to compare the susceptibility of Musca domestica against diazinon and malathion. These flies were taken from Osawa area in Chiba Prefecture, where organophosphorus compounds had been applied since 1960. The test insects, F_1 subcolonies of the flies, were reared from eggs laid individually by female flies caught in piggeries. The susceptibility to diazinon was very variable among 20 subcolonies obtained from the same breeding habitat, with the LD_<50> values falling between 1.4 and 19.6μg for "piggery A", and between 7.4 and 27.8μg for "piggery B". When 10μg of malathion were applied to 10 subcolonies the 24 hour mortalities fell between 0 and 43.3%.View full abstractDownload PDF (314K) -
Kiyoshi MAKIYAArticle type: Article
1974 Volume 25 Issue 3 Pages 229-235
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSSome analyses were made on the overwintering populations of the house mosquito, Culex pipiens pallens, collected during the period from October 1969 to March 1970,and on the field populations sampled in a hen house and a pigsty from May to November 1970. 1) Wing length distributions of parous females were compared with those of all the overwintering females. The wing length of the parous females distributed in shorter ranges of the overwintering population, and a general trend was observed that the shorter the wing, the higher the parous rate (Fig. 1). This seemed likely that many of the female mosquitoes belonging to the overwintering short-winged group joined to the long-winged group after blood feeding and oviposition in the prevalent season. 2) Parous rate of the population decreased from about 8% at the beginning to 4% at the end of overwintering period (Fig. 2). This seemed to imply that mortality of the parous females was slightly higher than that of the nulliparous ones in the overwintering population. 3) In early summer, average wing length of the field populations collected in a hen house and a pigsty, was at a level of the overwintering population, and decreased to the minimum at August. It remained at the average level of the overwintering short-winged group from around September to early October, but in early November appeared a small number of individuals with average length near to that of long-winged group (Fig. 3). Both in the hen house and in the pigsty populations, the parous rate increased remarkably in autumn and reached to the maximum in early October, when the average wing length remained at the level of the overwintering short-winged group (Fig. 3).View full abstractDownload PDF (746K) -
Kiyoki MORIYAArticle type: Article
1974 Volume 25 Issue 3 Pages 237-244
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSWeekly investigations on oviposition activity of mosquitoes were carried out by an ovitrap method in four study areas in Kamakura City from May to December in 1971. The percentages of ovitraps found positive showed a sharp increase at week 27. A high level of ovitrap positivity was observed during weeks 31 through 35. Oviposition activity decreased significantly by week 36. The late-season peak appeared in these areas during weeks 38 and 39. A total number of the eggs deposited in ovitraps was recorded as 10,841 for C area, 8,653 for B area, 7,813 for D area and 6,680 for A area respectively. The sensitivity of the ovitrap was closely related with its placement. The total numbers of the eggs of one trap which was placed on the same site ranged from 14 to 1,074 (average 340) during 28 weeks. The following 8 species were found : Acdes albopictus, Tripteroides bambusa, Uranotaenia bimaculata, Aedes japonicus, Aedes nipponicus, Culex tritaeniorhynchus, Armigeres subalbatus and Aedes flavopictus. Aedes albopictus was the dominant species (73.9 percent) followed by Tripteroides bambusa (13.1 percent) and Uranotaenia bimaculata (9.1 percent). The collections of the four study areas indicated that the species compositions were resembled each other but the relative abundances were different. In A area the percentage of Aedes albopictus was greater than in B area. It appeared that suitable oviposition sites by Aedes albopictus increased with enlargement of the housing area. Ovitraps proved to be a better method for detecting of Aedes albopictus and other small-container breeders.View full abstractDownload PDF (940K) -
P. H. VERCAMMEN-GRANDJEAN, Nobuo KUMADA, I. M. NEWELL, P. ROBAUX, Hiro ...Article type: Article
1974 Volume 25 Issue 3 Pages 245-249
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSThe switching of a group of larval mites, arranged till now in the Johnstonianidae family, to the tribe Chyzeriini is explained; also the necessity to change the taxonomical status of the subfamily Trombellinae sheltering the tribe Chyzeriini. In that latter tribe, a new genus, Ralphaudyna, is created for the new species amamiensis.View full abstractDownload PDF (547K) -
Takeshi SUZUKI, Fola SONEArticle type: Article
1974 Volume 25 Issue 3 Pages 251-257
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSStudies on the biting activities and seasonal prevalence on Aedes (Stegomyia) polynesiensis and Ae. (Finlaya) samoanus, two main vectors of subperiodic bancroftian filariasis in Western Samoa, were carried out by human bait collection method. The results are summarized as follows : There are two peaks in the biting activities of Ae. polynesiensis. The afternoon density is higher than the morning one, and the outdoor biting density is higher than the indoor one. A considerable number of this species also bites man at night, particularly on bright moonlit nights. Ae. samoanus has the highest peak of biting activity during the third quarter of the night. No difference was observed between the outdoor and indoor biting density of any mosquito species collected at night. There is no clear relationship between biting activities, temperature and relative humidity. The seasonal prevalence of these two mosquito species correlates mainly with the rainfall.View full abstractDownload PDF (506K) -
Masahisa ORIArticle type: Article
1974 Volume 25 Issue 3 Pages 259-266
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSA series of surveys have been carried out on the spider species as natural enemies of pest insects in a garden of Sakurababa-machi, Nagasaki city over a period from 1955 to 1959,and from 1963 to 1966. A total of 87 species (61 genera and 26 families) including 40 common species were recorded in the garden through the observation years. The number of spider species was found abundantly from May through August particularly. The predominant species were the spiders belong the families of Argiopidae, Salticidae and Theridiidae. Most of the spiders were distributed in the bush and on the outer walls of the house but few on the ground. The insect species which destroyed by the spiders were also recorded; the preys confirmed were insects belong to the orders of Collenbola, Odonata, Blattaria, Orthoptera, Dermaptera, Isoptera, Hemiptera, Mecoptera, Lepidoptera, Coleoptera, Hymenoptera and Diptera. Especially great numbers of houseflies and chironomids (Diptera) were captured by almost all the spider species in the garden. The chironomids were trapped by the viscid lines of webs.View full abstractDownload PDF (630K) -
Junko MIYAMOTOArticle type: Article
1974 Volume 25 Issue 3 Pages 267-272
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSGlycyphagus destructor (Schrank, 1781) is commonly found in stored food and house dust in Japan, but relatively little is known about its biology. The author observed the effects of temperature to the growth and reproduction of this species by individual rearing method. The colony used was started from hypopi collected from house dust at a house near Tokyo and had been bred for generations in the laboratory. The containers used for keeping the mites were glass tubes, 1cm long and 1cm in a diameter, which were covered with a transparent plastic sheet on one side and with 200 mesh size of wire screen on the other. A few eggs of the mite were placed into a container, and were exposed to seven different levels of temperature ranged from 2℃ to 37℃. All the containers were kept at relative humidity of about 85% R.H., and a mixture of equal amount of dried yiest and laboratory animal food powder was provided as the food for the mites. Each container was examined every day under a stereomicroscope. The mite passes four stages in a life cycle, egg, larva, protonymph, tritonymph and adult. No hypopal stage was observed so far as the present observations concern. The days required for a life cycle from newly deposited eggs to the first oviposition of the females were 72.8 days in average at 10℃, 27.8 days at 15℃, 21.5 days at 20℃, 10.0 days at 25℃ and 9.6 days at 30℃. The eggs did not hatch at 2℃ as well as at 37℃. The survival rate of mites which completed the development from larva to adult was usually more than 95% at the temperature levels 15-25℃. The life span of the females as well as their oviposition period was the longest at 10℃, and the period became shorter as the temperature was raised, but the average number of eggs produced per day per female increased as the temperature became higher, with the maximum figure of 6.8 eggs per day per female in the average at 25℃. The sex ratio of adult which emerged at 25℃ was ♀ : ♂=1 : 0.8,and their 50% survival period of the adult at 25℃ was 15 days in females and 11 days in males. The average survival period was 16.1 days in females and 13.3 days in males.View full abstractDownload PDF (578K) -
Masakazu TAKAHASHI, Katsumi SAITOArticle type: Article
1974 Volume 25 Issue 3 Pages 273-277
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDuring a period from Oct. 1971 to Sept. 1973,a monthly survey of blackfly larvae and pupae was made at 8 stations on the Kobotokegawa river systems in the suburbs of Tokyo. 1. The number of individuals collected in this survey totalled 11,216,containing 11 spp., among which Simulium japonicum, S. bidentatum and S. suzukii were most numerous, whereas, S. subcostatum, S. uchidai, S. rufibasis, S. kawamurae, S. shogakii, S. arakawae, S. aokii and Prosimulim kiotoense were few in number. 2. Larvae of S. japonicum and S. suzukii were collected throughout the four seasons. 3. Many larvae of S. japonicum, 76%, were infected with nematodes, but the larvae parasitized were restricted during the period between February and April. 4. The infected larvae possessed from one to six nematodes. Among the 216 infected larvae 165 larvae contained 1 Nematode, 39 larvae 2,6 larvae 3,2 larvae 4,3 larvae 5,and 1 larva 6.View full abstractDownload PDF (429K) -
Atsuo SHIMADA, Kazuki OGATAArticle type: Article
1974 Volume 25 Issue 3 Pages 279-284
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSIn recent years the availability of compounds with juvenile hormone (JH)-like activity has led to extensive efforts to evaluate their potential as insect-control agents. In the present paper, the emergence inhibitory activity of methoprene, and its slow-release formulation (SR-10[○!R]) was evaluated against house fly larvae, Musca domestica vicina, using 4 testing methods in the laboratory. Methoprene was remarkably effective when 6 day-old larvae were placed on water film containing 0.156ppm or more of the test compound for 2-3 days. Adult emergence of fly larvae, which had been kept continuously in the larval media containing 0.625ppm or more of methoprene, was mostly inhibited, even when they had been introduced to the media at 3 day-old stage. Furthermore, methoprene was showed to be effective when it was applied topically to the larvae. The ID-50 value was calculated as approximately 0.3μg/larva on the 6 day-old larvae. This fact suggests that methoprene may have a high ability of penetration through the cuticle comparable to the efficiency of fenitrothion. Distinct differences of the lethal pattern were observed between methoprene and fenitrothion, for example, the former killed at pupal stage and the latter did at larval stage. It might be due to an essential difference on the mode of action. Thus, we concluded that methoprene had a high inhibitory activity on adult emergence and its practical application was expected as a fly larvicide.View full abstractDownload PDF (603K) -
Yoshitake WADA, Yuji SAWARA, Junichiro NIIYAMA, Yoshikazu FUKABORI, Yu ...Article type: Article
1974 Volume 25 Issue 3 Pages 285-288
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSA survey was made on the distribution in the Tokyo Metropolitan area (Kanto Plain) of the two mosquito-larvivorous fishes, Gambusia affinis (top minnow or mosquito fish) and Oryzias latipes (medaka) by our direct inspection as well as from the information responding to the questionnaires from 859 middle schools in the Prefectures of Gunma, Tochigi, Ibaraki, Saitama, Chiba, Kanagawa and Tokyo. Gambusia affinis is a poeciliid ovoviviporous fish introduced into Japan in 1916 from southern United States via Hawaii and Taiwan for the purpose of malaria control, and has been noted recently to be distributed in rather polluted waters in and around the city of Tokyo, whereas, Oryzias latipes is a native fish widely distributed in streams and ditches containing cleaner water. Gambusia affinis was found in ditches and swamps in the more urbanized areas near the coast of the Bay of Tokyo, especially in the cities of Tokyo, Yokohama and Chiba, and also in the areas north of Tokyo lined by the Rivers Arakawa and Furutonegawa, where the waters were more or less polluted by sewage. Sporadic distributions of this species were noted in the ponds in Tokyo, Utsunomiya and Tsuchiura where the fish had been introduced artificially. Oryzias latipes was found in the rural areas surrounding these large cities, particularly in rice paddies and streams in Kanagawa, Saitama, Gunma, Tochigi, Ibaraki and Chiba Prefectures. Large numbers of Gambusia have been observed to be inhabiting in the water of the Bay of Tokyo near the wharf of Tokyo Harbour, and thus we assume that it has established in a number of canals along the Bay shore by them selves.View full abstractDownload PDF (458K) -
Article type: Cover
1974 Volume 25 Issue 3 Pages Cover12-
Published: December 15, 1974
Released on J-STAGE: September 05, 2016
JOURNAL FREE ACCESSDownload PDF (73K)
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