All issues
Volume 34 (1983)
- Issue 4 Pages 253-
- Issue 3 Pages 165-
- Issue 2 Pages 61-
- Issue 1 Pages 1-
Volume 34, Issue 3
Displaying 1-12 of 12 articles from this issue
- |<
- <
- 1
- >
- >|
-
Article type: Cover
1983 Volume 34 Issue 3 Pages Cover10-
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSDownload PDF (43K) -
Kazuhiro AMANOArticle type: Article
1983 Volume 34 Issue 3 Pages 165-175
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSThe yellow dung fly, Scatophaga stercoraria L., was tested to ascertain how intraspecific competition among larvae acts on the subsequent development. Various numbers of newly hatched larvae were reared with a fixed amount of cow dung to assess the density effects on the pupation, pupal volume, developmental period, emergence of adults and relation between the pupal size and the fly's wing length with special reference to the male and female. On the whole, higher larval mortality, reduction of pupal volume (male reduced more remarkably than female) and shortening of developmental period were caused by high densities. But, the intensity of competition had no effect on the sex ratio of emerging flies within the observed range of densities. The ratio of the length of pupae to the width was almost settled in any sized pupae and without any significant difference between sexes. The relation between pupal size and the wing length of flies was well represented by a regression line.View full abstractDownload PDF (930K) -
Mitsuhiro IWASAArticle type: Article
1983 Volume 34 Issue 3 Pages 177-206
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSA comparative study on the mouth parts of medically and veterinarily important flies was performed, and the development and origin of the prestomal teeth in cyclorrhaphous flies were discussed. The types of the mouth parts of Musca-species were divided into three groups, viz. domestica, conducens and crassirostris-groups based on the development of the prestomal sclerites. Observations using both a scanning electron microscope (SEM) and a light microscope made clear the external characters and the quality of the prestomal teeth, and showed the true affinities of mouth parts. Intermediate forms were found among the three groups, and gradual development of the prestomal teeth and discal sclerite were observed. It was supposed that the prestomal sclerites of Musca-species gradually evolved from the undeveloped type to the developed, sclerotized type that have the acute labella and the pseudotracheae of a reduced number, acquiring the food-habit which is omnivorous to haematophagous. In Calypteratae, the species which have developed prestomal teeth were confined to those which are predacious or haematophagous. Basically, the muscid, calliphorid and sarcophagid flies have prestomal teeth regardless of their food habits. But in tachinids and some species of anthomyiids, the prestomal teeth were vestigial or absent. Moreover, in most of the species belonging to Aschiza and Acalypteratae, the prestomal teeth were absent, although they were found in some phorid species. Considering the phylogeny and the present state of prestomal teeth in cyclorrhaphous flies, the origin of the developed prestomal teeth found in the higher calypterate flies of medical and veterinary importance can presumably be traced back to the ancestral Anthomyiidae.View full abstractDownload PDF (5631K) -
Satoshi SHINONAGA, Rokuro KANOArticle type: Article
1983 Volume 34 Issue 3 Pages 207-212
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSFive species of the genus Orthellia Robineau-Desvoidy, 1863 were recorded from Papua New Guinea. Three of them are newly described and illustrated. They are O. gressitti, O. kaindiensis and O. montana, that were captured on cow or horse dung and human feces. A key to the species of New Guinean Orthellia is given.View full abstractDownload PDF (498K) -
Tokuko UMINO, Takeshi SUZUKI, A. J. Onofre OCHOAArticle type: Article
1983 Volume 34 Issue 3 Pages 213-219
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSEffective distance of application of temephos wdp against blackfly larvae or insecticidal carry in streams, was studied by decrease of larval population on substrates and by bioassay of water and soil in minute streamlets in and near an onchocerciasis endemic area in Guatemala. An application of temephos with the dose of 2ppm (AI) for 10min water discharge was effective up to 100m downstream in a streamlet of 0.8 liters/sec discharge, but only 25m in a smaller streamlet of 0.13 liters/sec discharge. In a similar small streamlet of 0.07 liters/sec discharge, the carry was the same 25m, even when an extraordinarily high dose of 200ppm was applied. It was found that, as far as temephos is concerned, the effective distance should depend on the amount of water discharge, resulting in an extremely short carry in streamlets with minimum water discharge, and that in minute streamlets of 0.07-0.13 liters/sec discharge, the carry could not be extended by increasing insecticidal dose. The probable reasons for such short carry in minute streamlets were discussed.View full abstractDownload PDF (639K) -
Teruki KADOSAKA, Kiyotoshi KANEKO, Kiyoshi ASANUMAArticle type: Article
1983 Volume 34 Issue 3 Pages 221-227
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSFour species of nasal mites belonging to the family Rhinonyssidae are reported from several species of birds in Japan. Newly recorded from Japan are Ptilonyssus dioptrornis Fain, 1956,from Muscicapa cyanomelana cyanomelana, Ptilonyssus enicuri Fain and Nadchatram, 1962,from Erithacus akahige akahige, Ptilonyssus emberizae Fain, 1956,from Emberiza spodocephala personata and E. sulphurata, Ptilonyssus pari Fain and Hyland, 1963,from Parus major minor, P. ater insularis and P. varius varius.View full abstractDownload PDF (520K) -
Hiroshi YAMANISHI, Eiji KONISHI, Toshiko SAWAYAMA, Takeo MATSUMURAArticle type: Article
1983 Volume 34 Issue 3 Pages 229-233
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSThe susceptibilities of several species of mosquitoes to Chikungunya virus were tested. The mosquitoes tested were Aedes aegypti, Ae. riversi, Culex tritaeniorhynchus, Cx. pipiens molestus, two strains of Cx. fatigans and six strains of Ae. albopictus. The virus was detected in four strains of Ae. albopictus, Ae. aegypti and Ae. riversi inoculated orally. While two strains of Ae. albopictus, Cx. tritaeniorhynchus, Cx. p. molestus and Cx. fatigans were not infected with the virus. The virus titer decreased shortly after oral administration in Ae. albopictus and Ae. aegypti, but did not decrease when it was inoculated intrathoracically. The maximum titers of the virus in Hyogo and New Guinea strains of Ae. albopictus were 1.6×(10)^4 PFU/mosq. and 8.4×(10)^4 PFU/mosq., respectively. In Ae. aegypti, the maximum titer of the virus was 2.0×(10)^4 PFU/mosq. Two strains of Chikungunya virus were used in the present experiment and they showed a significant difference in the multiplication in mosquitoes.View full abstractDownload PDF (490K) -
Hirofumi HAYAKAWAArticle type: Article
1983 Volume 34 Issue 3 Pages 235-239
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSAtylotus ozensis n. sp. is described based on the male and female materials from Honshu, Japan. This species is closely related to Atylotus bivittateinus, but can be easily distinguished from it by oblique-oblong sublateral markings on abdomen which are evidently pale yellowish in color.View full abstractDownload PDF (462K) -
Masakazu TAKAHASHI, Yoshito WADAArticle type: Article
1983 Volume 34 Issue 3 Pages 241-243
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSBy individual cross of housefly males collected from the dumping ground on the "Third Yumenoshima" area to females of a standard strain (Lab em-7-em) immediately after emergence, it was shown that males with M (male determining) factor in autosomes both in homozygous and in heterozygous states are included in the housefly population of the area. This confirms a recent view that the houseflies with anomalous sex determination (A^MA-type or A^MA^M-type) became remarkable in various locations of Japan, in place of the standard houseflies in which the sex determination is XY^M-type. It was also revealed that the development of follicles in the ovary was greatly delayed in many females of the strain of the housefly originated from the "Third Yumenoshima" area.View full abstractDownload PDF (284K) -
Shiro KITAMURA, Masahiro TAKAGI, Norimi YAMAMOTO, Akio OHYAMAArticle type: Article
1983 Volume 34 Issue 3 Pages 245-247
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSTo improve the group rearing techniques of Toxorhynchites splendens larvae, the efficiency of non-living and living diets were examined. 1. Both of the 1st and 2nd instar reared individually with either dried yeast powder (DYP) or powdered mouse food (PMF) developed to the next stage, and the developing duration from 1st to 3rd instar was 2 days shorter with DYP than PMF. 2. Fifty larvae in each larval stage were reared without food for a fixed period of hours, and the average number of survivors among the 1st instar preying for 48hr were 9.7 (19.3%), that of 2nd instar for 72hr were 4.0 (8.0%), that of 3rd instar for 96hr were 17.0 (34.0%), and 24.0 (48.0%) of the 4th instar survived after preying for 168hr. Those results indicated the difference in the degree of cannibalistic behaviour in respective larval stages. 3. The average survival rate in the 1st instar reared as a group with DYP was 28.0%. It was higher than that of 19.3% obtained by group rearing without food, and that of 2nd instar reared as a group with a mixture of small blood worms (Oligochaeta, smaller than 5.0mm in body length) and PMF was 44.6%. It was about 5 times as high a rate of those reared without food. 4. Almost all larvae in the 3rd and 4th instars reared as a group with enough live blood worms could develop to the next larval stage and pupated without revealing cannibalistic behaviour during the experiments.View full abstractDownload PDF (359K) -
Hirofumi HAYAKAWA, Yohtaro YONEYAMA, Tohru INAOKAArticle type: Article
1983 Volume 34 Issue 3 Pages 249-251
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSEgg-batches of Hybomitra olsoi Takahasi, 1962,were collected from marshes in Hokkaido from late July to early August in 1981 and 1982. The eggs were found on rather broad leaves (mostly underside) of 7 plants, mainly Hosta rectifolia Nakai and Gentiana triflora Pall., at the average height of 21.8cm above the ground or water surface. The egg-batches were brownish black to black in color, and roughly conical or semi-oval in shape with 3 to 4 layers of eggs. Average number of eggs per batch was 357. Sixty-seven percent of egg-batches were parasitized by wasps.View full abstractDownload PDF (494K) -
Article type: Cover
1983 Volume 34 Issue 3 Pages Cover12-
Published: September 15, 1983
Released on J-STAGE: September 02, 2016
JOURNAL FREE ACCESSDownload PDF (53K)
- |<
- <
- 1
- >
- >|