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The investigations were carried out to know the temperature limit of activity, the locomotive velocity and the diurnal activity of the fly of the corn-linear leaf-miner, Phytomyza nigra MEIGEN. The results may be summarized as follows : 1. The range of temperature zone of normal activity was 31.8-10.3℃≒22℃ in female and 35.0-9.3℃≒26℃ in male. 2. Comparing to the other leaf-miners, the range of temperature zone of normal activity of this fly is closely allied to the corn-blotch leaf-miner and it narrower than of the chrysanthemum leaf-miner and the ranunculus leaf-miner but broader than of the rice leaf-miner and soy-bean root-miner. 3. The diurnal rhythm of activity of the fly is affected mainly by the diurnal change of temperature so that it depends upon the temperature reaction. The lower limit of activity of the fly is about 10℃ in the field. 4. In cloudy weather, the condition of rest gradually changes into of activity and the time beginning of activity is later than in fine weather. 5. The locomotive velocity, measured under gradually rising temperature, was calculated with ARRHENIUS' formula. The critical temperatures are at 20℃ and 29.03℃, and these temperatures somewhat agree with the temperatures at which the fly begins to fly and becomes nervous, i. e. 17.6℃ and 33.5℃ respectively. The temperature increments are as follows : Below 20℃‥‥‥‥‥μ=11372 20℃-29℃‥‥‥‥‥μ=14464 above 29℃‥‥‥‥‥μ=7146 6. The locomotive velocity under field conditions is very much intimately affected by the presence or absence of solar radiation.

麦条葉潜蠅加害に対する麦類品種間差異を調査し, 其の原因解析に当つて2・3の実験を行つた結果は以下の如くであつた。1. 産卵数の多少は成虫の寄主選択性によるものでなく, 品種間の繁茂様相と密接な相関々係を有する。即ち, 繁茂指数の大きい品種程産卵数が多くなる傾向が有る。2. 産卵数は早生種に於て多く, 晩生種に於て少い。3.葉色・葉質の硬軟は産卵数の多少に影響しない。4. 幼虫の死亡率は粗蛋白質を多く含む品種に於て低い。従つて粗蛋白含量の少い品種は本害虫に対して抵抗性が強いものと言える。5. 死虫率と繁茂指数との関係は明瞭でない。, The experiments concerning the differences among the varieties of the barley and wheat to the damage of the corn-linear leaf-miner, Phytomyza nigra MEIGEN, were carried out from 1952 to 1954. As the host-plants to investigate, fourteen varieties of the barley and two varieties of the wheat were used and they were planted in a corn-field of the Saikyo University. The results may be summarized as follows : 1. The differences of number of eggs deposited on the different varieties have been correlated with the differences of the growth vigor or habits in each variety, that is, the eggs have been more laid on the varieties those show heigher index-number of luxuriance than those show the lower (coefficient of correlation : +0.83 in 1953,+0.67 in 1954). In the other aspect, the flies have been more laid on the early maturing varieties than on the late maturing verieties. 2. The leaf color, hardness and softness of the leaf tissue have been no effected upon the oviposition of the fly. 3. The mortality of the larvae was lower in the varieties which contain larger amount of the crude protein, so that the varieties which contain less amount of the crude protein in the leaves may be show higher resistance for the damage of this mining fly.

奄美大島及び宝島(トカラ列島)産ハモグリバエのうち現在までに判明した次の7属19種(3新種, 1新亜種)を記録した。1. Agromyza lunulata SASAKAWA, n. sp. 2. Agromyza phragmitidis HENDEL アシハモグリバエ 3. Agromyza spiraeae KALTENBACH バラハモグリバエ 4. Melanagromyza pulicaria MEIGEN タンボ,ハモグリバエ 5. Melanagromyza styricicola SASAKAWA エゴノキハモグリバエ 6. Ophiomyia proboscidea STROBL 7. Phytobia bisetiorbita SASAKAWA ササハモグリバエ 8. Phytobia geniculata FALLEN 9. Phytobia artemisiae KALTENBACH ヨモギハモグリバエ 10. Phytobia luctuosa MEIGEN スゲハモグリバエ 11. Liriomyza asterivora SASAKAWA, n. sp. ヨメナスヂハモグリバエ 12. Liriomyza brassicae RILEY 13. Liriomyza debilis SASAKAWA, n. sp. ヒマハリハモグリバエ 14. Napomyza yasumatsui anemoneae SASAKAWA, n. subsp. 15. Phytomyza atricornis MEIGEN ナモグリバエ 16. Phytomyza plantaginis ROBINEAU-DESVOIDY オホバコハモグリバエ 17. Phytomyza ranunculi albipes MEIGEN 18. Phytomyza ranunculi flavoscutellata FALLEN 19. Phytomyza flavofemoralis SASAKAWA イチゲサウハモグリバエ

1) Agromyzid leaf-mining flies of the Compositae found in Kyoto belong to the following six species, Phytomyza albiceps Meigen, P. atricornis Meigen, P. japonica Sasakawa, Dizygomyza artemisiae Kaltenbach, D. posticata Meigen and Ophiomyia maura Meigen. Of these species five, excepting P. atricornis, are new to record in Japan. 2) The host-plants of these leaf-miners are as follows : Artemisia Absinthium L. ...... Phytomyza albiceps Meig &sparsl; &sparsl; &sparsl;...... P. atricornis Meig. A. vulgaris L. indica Maxim. ...... P. albiceps Meig. &sparsl; &sparsl; &sparsl; &sparsl; &sparsl;...... P. atricornis Meig. &sparsl; &sparsl; &sparsl; &sparsl;...... Dizygomyza artemisiae Kalt. A. vulgaris L. var. vulgatissima Bess ...... P. albiceps Meig. &sparsl; &sparsl; &sparsl; &sparsl; &sparsl; &sparsl;...... P. japonica Sasa. &sparsl; &sparsl; &sparsl; &sparsl; &sparsl; &sparsl;...... D. artemisiae Kalt. Aster indicus L. ...... P. atricornis Meig. &sparsl; &sparsl; &sparsl;...... P. japonica Sasa. &sparsl; &sparsl; &sparsl;...... D. posticata Meig. &sparsl; &sparsl; &sparsl;...... Ophiomyia maura Meig. A. trinervius Roxb. var. adustus Maxim ...... D. posticata Meig. A. trinervius R. var. congestus Fr. et Sa ...... D. posticata Meig. Chrysanthemum indicum L. ...... P. atricorms Meig. C. indicum L. var. hortense Makino ...... P. atricornis Meig. C. morifolium Ramat. var. sinense Makino ...... P. atricornis Meig. &sparsl; &sparsl; &sparsl; &sparsl; &sparsl; &sparsl;...... P. japonica Sasa. Erigeron annuus L. ...... O. maura Meig. Eupatorium sachalinense Makino ...... D. artemisiae Kalt. Lactuca dentata Makino ......P. atricornis Meig. L. laciniata Makino ......P. atricornis Meig. L. Scariola L. var. sativa Bisch.......P. atricornis Meig. Petasites japonicus Miq....... P. atricornis Meig. Senecio cruentus DC......P. atricornis Meig. Solidago Virga-aurea L....... O. maura Meig. Sonchus oleraceus L....... P. atricornis Meig. S. asper Vill......P. atricornis Meig.

We have been observed four types of Cecidomyid galls which were formed on the leaf of Fagus (beech). The present paper deals with descriptions of three galls and a new species obtained from one of these galls. We wish to express our sincere gratitude to Prof. Dr. Masaaki Tokunaga for his many helpful suggestions. Our thanks are due to Mr. Jean Bourgogne, Museum d'Histoire Naturelle at Paris, for a valuable copy on Phegomyia (Oligotrophus) fagicola Kieffer and Prof. Mitimasa Iwamura and Mr. Akira Nobuchi for the gift of many materials.

ハモグリバエの雌外部生殖器官の構造についてはde Meijere (1838)はじめ2・3の簡単な報告が見られるが, Hendel (1931)以来分類学的記載には単に産卵鞘の大きさ並びに棘毛の有無等が扱われていたにすぎない。私はごく最近になつて種的標徴としてその重要性が認められてきた雄外部生殖器とともに雌の外部・内部生殖器の形態もまた非常に分類学的価値があることを見出した。ここにAgromyzinaeの日本産6属28種について調査した諸形態の比較とそれらの分化について述べる。概形 : 腹部第7環節はいわゆる産卵鞘となり, 以下の環節は通常その中にはまり込んでいる。第8環節の背・腹両面には多数の鋸歯が列生する, 後端にある一対の誘卵器は三角形ないしナイフ状を呈しかなり群又は種間変異に富むほか産卵習性と密接な関連性が見られる。第9環節は細長く, 背・腹板の形状や棘毛数は種々である。第10∿11環節は膜状, 尾毛は1節で多数の感覚毛を装う。内部器官は卵巣, 輸卵官, 受精嚢及び附属腺からなる。受精嚢は褐∿黒色, 球形ないし長卵形を呈し, 腹面にある管状受精嚢と共に近似種間の識別に有効である。Agromyza : 邦産12種(未記録5種を含む)は2群に大別され, yeptans群はrubi群より分化が進んでいないようである。前者の中で最も原始的と考えられるreptans亜群の誘卵器や腹面受精嚢の形態は非常に単純であり, 禾本科植物の葉に産卵する種類が属するヤノハモグリバエyanonis及びイネハモグリバエoryzae両亜群の誘卵器の内面には有毛突起を有する。また, この群のある種の受精嚢には他に見られない横じわがある。rubi群の誘卵器には他属と共通な鋸歯を生じ, 原始的なA. rubi以外の腹面受精嚢は非常に長く, 巻いているほか諸形質の分化の程度が高い。Japanagromyza : この新属は前小楯板棘毛の存在, 平均棍の色彩等によつてAgromyza及びMelanagromyza属とは容易に識別できるが, 雌内部生殖器官の形態にも特異なものが認められる。現在4種が属し, 第9背板はU字状を呈し, 受精嚢の表面には微棘を生じ, さらにduchesneae群の腹面受精嚢の尖端には双葉状の膨大部がある。Melanagromyza : 本属もAgromyza属と同様に誘卵器の形状によつてaeneiventris及びpulicaria両群に分けられ, かつそれは産卵習性に由来していることは興味深い。即ち, 前群には植物の茎内を潜孔する種類が属し, 種間の分化は余り顕著でない。これに反して後群のものは潜葉性で, 表皮内潜孔をするチヤハモグリバエM. theaeほかpulicaria, styricicolaの2種, Agromyza属に近い諸形質を示すyanoi, さらに特殊化したダイズメモグリバエを含んでいる。Carinagromyza, Ophiomyia及びTylomyza : Carinagromyza属の受精嚢は本亜科中最も小さく, 基部はらせん状に分裂する;Ophiomyia属の第9背板は中央部が狭わまり, 受精嚢の頸部は特に長い;Tylomyza属の受精嚢の基部は分裂しない。その他の形態はMelanagromyza属のそれと類似するようで, 既知邦産種が少いため詳しく論及できない。