1 0 0 0 OA クロゴキブリ幼虫期の雌雄判別
- 著者
- 斉藤 一三 林 滋生
- 出版者
- 日本衛生動物学会
- 雑誌
- 衛生動物 (ISSN:04247086)
- 巻号頁・発行日
- vol.23, no.3, pp.181-184, 1973 (Released:2016-09-05)
- 被引用文献数
- 5 4
The morphological characteristics in the terminal part of abdomen of Periplaneta fuliginosa (Serville) were studied from the newly emerged first instar nymph through the whole developing stages until adults. Except the first instar nymphs which were obtained escaping from the oothecae the specimens used for the present observations were collected by the bait traps set in a building. The morphological changes which took places during the course of developing could be traced into two directions, that is, one to female adult and another to male adult. The presence and the developing of a notch at the middle of hind margin of the ninth abdominal sternite as well as the styli growing on the ninth sternite, and the striking development of the seventh sternite were noticed in the specimens developing to females. With the specimens growing to males no notch was observed at the margin of the ninth sternite and either the eighth, the ninth sternites or the styli remained unreduced while developing. These characteristic features enabled the sexing of cockroach through the whole developing stages.
1 0 0 0 15 クロゴキブリの日周活動について
1 0 0 0 日本におけるマレー糸状虫症とバンクロフト糸状虫症の比較研究
- 著者
- 斉藤 一三 林 滋生
- 出版者
- 日本衛生動物学会
- 雑誌
- 衛生動物 (ISSN:04247086)
- 巻号頁・発行日
- vol.17, no.3, pp.180-183, 1966
1)1963年12月から1964年4月まで東京都品川区五反田でチカイエカ成虫のAge構成の変動を観察した.発生場所はビル地下の閉鎖空間で, 水温13〜16℃, 気温15〜20℃であつた.2)観察は1〜2週間に1度行い, 採集は吸虫管で行い, 採集した蚊は実験室に持ち帰えりAgeの判定に供した.Ageの判定はDetinovaの方法に従い, 小卵巣のRelicの観察によつた.3)チカイエカのAge構成の変動には周期性がみられその周期は6週間であつた.4)交尾率と経産蚊率間には密接な関連がみられ, 交尾率が上昇すると経産蚊率も上昇し, 反対に交尾率が低下すると経産蚊率にも低下がみられた.5)経産蚊は大部分1回産卵で, 2回産卵が極めて少数, 3回以上は0であつた.6)1回産卵後は濾胞の発育が悪く吸血源のないところでは, 大部分が1回産卵のみで終るものと考えられた.