Cyrtoclytus monticallisus KOMIYA is newly recorded from the Ma-oi Hill, east of the Ishikari Plain, Hokkaido. It locates about 1,000 km northeast in a straight line from the easternmost known locality in Honshu. The external features of this population almost completely agree with those of western Honshu, though the body colour is darker in an average

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Parlatoria tsujii sp. nov. (Hemiptera: Diaspididae) is described and illustrated from 10 adult female specimens collected in Okinawa Island. It resembles P. camelliae and P. mytilaspiformis, differing from P. camelliae in the pygidial plates between the lobes having 2 or 3 tines and from P. mytilaspiformis in having submedian dorsal microducts.

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Male of a little known blow fly, Wilhelmina nepenthicola SCHMITZ and VILLENEUVE is described for the first time based upon the specimens reared from larvae collected in pitchers of Nepenthes rafflesiana and other species.

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The ant, Acropyga kinomurai and its mutualist mealybug, Eumyrmococcus kinomurai are recorded from Yonaguni Island, Japan, for the first time.

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Cerceris yuwanensis TSUNEKI, 1982 is newly recorded from Tokuno-shima. The female is briefly described for the first time.

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The subgenera Austrolasius and Dendrolasius of the genus Lasius are recorded from Mongolia for the first time. A brief review of the Lasius fauna of Mongolia is given, with a list of known species.

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Three new species of the subgenus Tachypterellus are described from Laos as the first representatives of the anthonomine subgenus from the Indochina under the names of Anthonomus (Tachypterellus) yoroi sp. nov., A. (T.) spinosus sp. nov., and A. (T.) laoensis sp. nov. All of them occurred sympatrically and were captured on a single fruiting evergreen Prunus tree at the same time. A key to the species of Tachypterellus is also given.

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Weevils of the genus Trachodes GERMAR were discovered from mountainous areas of Laos for the first time. Three new species, T. laoensis sp. nov., T. wakaharai sp. nov. and T. subalbicollis sp. nov., are described with a key to the Oriental species.

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Asian genera and species of the tribe Dimerini from Asia are revised. Two new species of the nominotypical subgenus of the genus Octomicrus, O. (O.) enkaizanus from Japan, and O. (O.) kusakabei from Myanmar are described. A new genus, Microctomicrus is defined with a description of the type species, M. idrisi sp. nov. from Malaysia. The genus Tuberoplectus is recorded for the first time from Asia and a new species, T. cucphuongensis from Vietnam is described. Type materials of the other species preserved in MNHM (Paris) were revised New distributional records of O. (Octomicrus) longulus longulus from N Vietnam and O. (O.) fauvelijavanus from Java are added.

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A clytine species belonging to the genus Xylotrechus is described from Taiwan under the name X. (Xylotrechus) wenii sp. nov. The new species has relationship in several respects with the members of the X. lautus Group sense NIISATO and N. OHBAYASHI (2002).

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Two new typhlocybine leafhoppers are described and illustrated from the Ryukyu Islands, Japan: Thaia (Nlunga) ryukyuensis sp. nov. of Erythroneurini and Jshiharella donanensis sp. nov. of Empoascini.

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The malachiid genus Dicranolaius is newly discovered from Yaeyama Isis., SW Japan, and a new species, D. mangalicola is described and illustrated. Some biological information are also provided.

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Two new species of Macrophya DAHLBOM are described from China: Macrophya jiaozhaoae WEI and ZHAO, sp. nov. and Macrophya curvatisaeta WEI and LI, sp. nov. The imitator group of Macrophya is defined and a key to the known species of the species-group is provided.

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Three species belonging to the compacta species group of genus Ceratina Latreille are recorded from the Philippines. Two of them were identified as C. compacta SMITH and C. nigrolateralis COCKERELL, and the other is described as new species under the name of C. tanoi sp. nov. Relationships between the new species and allied known species are illustrated and discussed.

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Two new species of the genus Tritoma, T. toyoshimai sp. nov. and T. miyatai sp. nov., are described from Japan.

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Coptops penghuensis sp. nov. is described from Penghu Islands, Taiwan.

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Eighty-three Limnophora species from Oriental Region including 26 new species are recorded. New species are as follows: L. achlys sp. nov., L. adusta sp. nov., L. albogilvus sp. nov., L. amboinensis sp. nov., L. anisophylea sp. nov., L. argyromeron sp. nov., L. arugutus sp. nov., L. bataviana sp. nov., L. caesius sp. nov., L. ceylanica sp. nov., L. floresiensis sp. nov., L. gilgitensis sp. nov., L. hetauda sp. nov., L. malayana sp. nov., L. minimus sp. nov., L. montiblensis sp. nov., L. nemophira sp. nov., L. nigribucca sp. nov., L. obscurata sp. nov., L. palawanensis sp. nov., L. puncakensis sp. nov., L. purpura sp. nov., L. siamensis sp. nov., L. stigma sp. nov., L. sulawesiensis sp. nov., and L. wolowarensis sp. nov. Key to the known species was provided.

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Eleven species of the superfamily Lygaeoidea collected from rice paddies in Laos are reported. Eight species of them are newly added to the Laotian fauna.

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Encyclops luteoscelis sp. nov., Strangalomorpha virididorsalis sp. nov., Parastrangalis taiwanensis sp. nov. and Pseudostrangalia puyuma gen. et sp. nov., all from Taiwan, are newly described with their habitus and male genitalia. A Vietnamese species, Strangalia svihlai HOLZSCHUH, 1989 is transferred to the genus Pseudostrangalia. Habitus and male genitalia of Encyclops viridipennis MAKIHARA, 1978 and Leptostrangalia nakamurai HAYASHI, 1960 are figured.

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Seven Palearctic species of Deltocephalinae, belonging to Athysanini or Paralimnini, are recorded from northern Japan for the first time.

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A Palearctic water measurer, Hydrometra gracilenta HORVATH, 1899, is newly recorded from Japan.

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