ON SOME JAPANESE APHIDIDAE (HOMOPTERA) BY MUS. COMP. ZOOL D. HILLE RIS LAMBERS , ,ooAr=,N, Bladluisonderzoek T.N.O., Benne ko7ii, Netherlands OCT 15 ÌS65 Abstract In a study on Far Eastern Aphididae (Homoptera) the following new genera, species, and subspecies are described. Ryoichitakahashia gen. nov., type-species R. ilicis spec. nov. with as synonym Anuraphis celastri Shinji, 1941, nee Matsumura, 1917, from Ilex serrata, Japan. Neodysaphis gen. nov., type-species iV. deutziae spec. nov. from Deutzia, Japan. ]uncoinyzus gen. nov., type-species ƒ. obscurus spec. nov. from /uncus ?, Japan. Longicaudinus gen. nov., type-species Hyalo-pteroides sinensis Tao, 1963, a probable synonym of Pergandeidia corydisicola Tao, 1962. Longicaudus dunlopi spec. nov. from Thalictrum jlavum, Netherlands, of which Semiaphis sphondylii van der Goot, 1915, nee Koch, 1854, is a synonym. Longicaudus himalayensis spec. nov. vagrant on Quercusi, India. Trichosiphoniella jormosana spec. nov. from Prunus persica, Formosa. Cryptomyzus taoi spec. nov. from Marrubium supinum, China. Cavariella takahashii spec. nov. from Salix, Japan. Matsumuraja nuditerga spec. nov. from Rubus, Japan. Longicaudus trirhodus subspec. japonicus nov., from Rosa and Thalictrum, Japan. The genus Recti calli s Matsumura, 1919, is discussed. Tuberculides nigrostriata Shinji, 1941, and Myzocallis pseudoalni Takahashi, 1921, are transferred to Recticallis, and Tuher-culoides alnifoliae Shinji, 1941, is synonymized with Recticallis alni-japonicae Matsumura, 1919. Myzus rhois Takahashi, 1924, is referred to Sumoia Tao, 1963, and Sitomyzus japonicus Takahashi, 1963, is declared a synonym of the first. Megoura japonica Okamoto & Takahashi, 1927; Nectarosiphon moriokae Shinji, 1923; Amphorophora lathyro Shinji, 1924; Megoura japonica Shinji, 1933; Megoura japonica Takahashi, 1937; and Megoura viciae coreana Moritsu, 1948, are declared synonyms of Megoura viciae subspec. crassicauda Mordvilko, 1919, which is raised to the specific rank. Trichosiphoniella Shinji, 1929, is discussed; Aphis spinulosa Essig & Kuwana, 1918, is transferred to Trichosiphoniella and considered a species distinct from the type-species of Trichosiphoniella. In a discussion of Takecallis Matsumura, 1917, T . bambusae Matsumura, 1917, is declared a synonym of Callipterus arundicolens Clarke, 1903; Myzocallis bambusifoliae Takahashi, 1921, is tentatively synonymized with Myzocallis arundinariae Essig, 1917. Myzocallis sasae Matsumura, 1917, is referred to Takecallis and distinguished from Myzocallis taiwana Taka-hashi, 1926. Therioaphis tectae Tissot, 1934, is considered a synonym of Myzocallis taiwana Takahashi. It is suggested that Aphis soy o go Uye, 1923 represents the variety with the twice furcated media in the forewings of Toxoptera aurantii (Fonscolombe, 1841) and the name soyogo is suggested for this variety. Introduction Dr. R. Takahashi used to send me material of most of the Japanese aphids that he discovered or rediscovered and my Cahfornian colleague, Dr. R. van den Bosch, gave me many aphids collected by him in Japan in 1964. Death came to 189
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