著者

中尾 舜一 上宮 健吉

出版者

久留米大学法学部〔ほか〕

雑誌

久留米大学論叢 (ISSN:03685144)

巻号頁・発行日

vol.37, no.1, pp.p25-45, 1988-06

著者

中尾 舜一

出版者

日本昆虫学会

雑誌

昆蟲 (ISSN:09155805)

巻号頁・発行日

vol.26, no.4, pp.201-209, 1958-12-10

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In the previous paper (Nakao, 1952), the author reported the fact that the diurnal sound-producing activity of Meimuna opalifera Walker belongs to a type of rhythmicity dependent upon the environmental conditions. But a song-length of this cicada in a day is independent to the environmental conditions, because a song-length seems to be lengthened with the lapse of time in a day irrespective of the various weather conditions. However, it is appreciably influenced by the high population density of the cicadas which gives the males more chances to meet the females or vice versa. The song-length is shortened when the population density of the cicadas becomes high, and the high population density disturbs the normal diurnal variation of a song-length. This fact seems to indicate a close connection to the active interaction between the sexes.

著者

安松 京三 岡部 浩洋 中尾 舜一

出版者

日本応用動物昆虫学会

雑誌

日本応用動物昆虫学会誌 (ISSN:00214914)

巻号頁・発行日

vol.9, no.1, pp.64-66, 1965

著者

中尾 舜一

出版者

九州大学

雑誌

九州大學農學部學藝雜誌 (ISSN:03686264)

巻号頁・発行日

vol.14, no.3, pp.319-328, 1954-03

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In spite of its rare occurrence, Agriosphodrus dohrni Signoret is widely spread over all prefectures of Kyushu, Japan, except Kagoshima Prefecture, from where not a single specimen has hitherto been collected (Fig.1). The favourite habitat of the nymphs of this Reduviid seems to be restricted to a certain narrow and extremely limited place, viz., a slightly hollowed or folded site on the east or south side of a fairly large or large trunk of such trees as Celtis sinensis japonica Nakai, Prunus yedoensis Matsumiara, Pinus thubergii Parlatore, Cinnamomum camphora Siebold, Cyclobalanopsis gilva Oersted, Podocarpus chinensis Blume, Shiia sieboldi Makino, Diospyros kaki domestica Makino, etc., about 2 3 meters above the ground, where the nymphs are making aggregations except their foraging times and often hibernate during winter and from where the nymphs move away to all directions in search for their prey. Therefore, such favourite sites become isolated from one another and are very few even on a single tree-trunk or in a given area where their aggregations are represented by more or less accidental collections. Contrary to the nymphs the adults are always solitary in habit, chiefly living on the shoots or trunks of the tree in question where they have spent their nymphal stage, but seldom fly away or migrate to another tree. From such observations it becomes apparent that the characteristic feature of its distribution may be attributed to its occurrence in isolated areas in the state of isolated populations. The adults are said occassionally attracted to light. The nymphs have been observed to feed on the larvae of Psychidae and Arctiidae (Lithosiinae), an adult fly of about 5 mm in body-length and a small Chrysomelid (?) beetle, which were pierced with their strong rostrum. The habitat of this Reduviidae on the trunk of Celtis sinensis japonica Nakai in the campus of the Kyushu University consists of clumps of moss, in which there are living a number of Arctiid (Lithosiinae) larvae of three different species. So far as the author's observation goes, these larvae seem to represent the chief food of this Reduviid. Gyotoku (1951) and Hasegawa (unpublished data) reared this Reduviid with caterpillars, aphides on Chrysanthemum, adults of Nezra antennata Scott, Nephotettix bipunctus cincticeps Uhler and the last instar nymphs of Poecilocoris lewisi Distant in the laboratory. Early hatched or moulted nymphs have been observed to feed on the lately hatched or moulted ones voraciously. The fact that the foraging area of such younger nymphs is very narrow is directly correlated with the habit of cannibalism and is the reason why the population of this Reduviid in nature becomes reduced to some extent during their first and scecond nymphal stages. On the other hand, such phenomenon as cannibalism has not been detected on the nymphs of the third, fourth and fifth instars in nature, Consequently the population size at the third nymphal stage reaches nearly the final size seen at the fifth stage. Of course natural enemies and other factors, if present, may cause the declination of population but those effects seem to be slight in the case of this Reduviid. In case the maximum temperature of the day become higher than 10℃, some of the overwintering nymphs become active and wander about beyond the boundaries of the favourite hibernation site and feed on their prey. This Reduviid seems to withstand starvation for considerable duration days. The eggs are deposited on favourite sites on the surface of the trunk. The site represents the most suitable environment, where the nymphs would aggregate themselves after ward. Oviposition takes place both in the morning and evening. The eggs are laid in batches of 30 to 80, and each ootheca is covered with a thin yellowish resin-like substance which is secreted by the female.1. 本報文に於て筆者は, ヨコズナサシガメ AgriosPhodrus dohrni Signoretの幼虫期における集団形成現象の手懸りとしての棲息環境・食性及び産卵習性を究明すると共に, 本種の日本に於ける分布についてもあわせ報告した. 2.日本に於ける分布は,鹿児島県を除く九州の各県である. 3.本種は樹幹上に極く限定された狭い棲息環境をもち, 従つて棲息場所は隔離された非常に孤立的なものとなつている. 4.一定の産卵好適場所に産卵された卵塊は,樹脂に似た物質で覆われ, 1卵塊は30~80個の卵からなる. 5.食物は多岐にわたり, 鱗翅類の各種幼虫, 小さな蝿の成虫, 小甲虫成虫, 蛎虫等各種の小昆虫の殆んどを食する. 筆者の観察した棲息場所における主な食物は, コケガの幼虫及びミノガの幼虫であつた. 弟1・2齢幼虫は肖然状態にても盛んに共食いをする.

著者

安松 京三 中尾 舜一

出版者

九州大学

雑誌

九州大學農學部學藝雜誌 (ISSN:03686264)

巻号頁・発行日

vol.16, no.2, pp.203-219, 1957-11

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It is well known that winds play an important part in the spread of Coccids. Especially interested readers may refer to Tutt (1898), Webster (1902), Quayle (1916), Dammerman (1922), Ehrlich (1933), Wolcott (1933), Clarke (1938), Glick (1939), Strickland (1950) and Bodenheimer (1951). But the literature reveals that not a single experiment has ever been carried out on the dispersal of Coccids by artificial air currents generated by an electric fan. The experiments reported herein on the dispersal of the crawling larvae of five species of Coccids by air currents were conducted in the Entomological Laboratory of Kyushu University at Fukuoka, Japan, from 1953 to 1954. In all experiments more than 1,500 crawling larvae of 0-24 hours age were used. The larvae were put on glass tubes of three different diameters (Tube A : 52.5 mm. Tube B : 22.0 mm. Tube C : 6.8 mm.). A wind tunnel was set betweenthe glass tube and the electric fan so as to make uniform currents to the tube.The larvae were oriented on eight imaginary positions on the surface of theglass tube to allow the fan to blow a current of air (Text-figure 1). The fan was regulated to deliver winds of desired velocities to the tube and allowed torun three minutes under room conditions, illumination being entirely natural. In the process of becoming familiar with the velocities of air currents which were sufficient enough to disperse the larvae, winds of various velocities were tested. The results were summarized in Tables 1-19, 20 and Text-figures 2-11. The percentage of the crawling larvae blown off by air currents was the highest on the sites III and IV?a remarkable contrast to the sites VI, VII and VIII. Judging by the flat structure of the larval body, the sites I and V seemed to be more stable for the larvae against air currents than the sites II, III and IV (Text-figures 9, 10 and 11). The experiments showed that many of the crawling larvae were blown off as insect drift within one minute after the beginning of each experiment as shown in Text-figure 8. The reaction of the larvae to winds was quite different according to the species of Coccids. All the crawling larvae (on sites I?V) of five species of Coccids used in this experiments reacted fairly well to much weaker air currents which correspond to No. 4 of Beaufort scale of wind velocity. The experiments suggested that the wind of the velocity No. 5 (fresh breeze) could carry almost all the crawling larvae (on sites I?V) from their crawling surface to the air as insect drift. The dispersal of the larvae of Ceroplastes rubens required much stronger air currents than those required by four other species. It is highly interesting that the crawling larvae of Icerya purchasi were very sensitive to the slightest movements of air and responded even to such wind as No. 0 of Beaufort scale of wind velocity. The sensitiveness of the crawling larvae among five species of Coccids was arranged in the following order from strong to weak : Icerya purchasi, Pulvinaria aurantii, Eriocerus pela, Phenacoccus aceris and Ceroplastes rubens.カイガラムシ類の匍匐幼虫が, 風によつて分散させられることは,従来間接的な方法によつて調べられていた. 本研究では, それらの幼虫に, 実験的に直接に風を当て, 風力に対する反応を調べた. 実験に使つた5種類のカイガラムシの飼働幼虫は, 夫々Beaufortの風力階級4以下の弱い風に実によく反応し, ワタフキカイガラムシでは階級0の部分に属する気流の動きにも敏感に反応する個体が認められた.