Review of the genus Thrips and related genera (Thysanoptera, Thripidae) from Japan.

Members of Thrips genus-group from Japan are reviewed, and 45 species in seven genera are recognized. Nine species and one genus are newly described: Stenchaetothrips amamiensis sp. n., S. dentatus sp. n., S. pleioblasti sp. n., Thrips nonakai sp. n., T. ogasawarensis sp. n., T. shiranesanus sp. n., T. syringae sp. n., T. typicus sp. n. and Tsutsumiothrips ryukyuensis gen. et sp. n. Moreover, 14 species of two genera are newly recorded from Japan: S. langkawiensis Ng & Mound, S. undatus Wang, Thrips alni Uzel, T. aspinus Mound & Masumoto, T. brevicornis Priesner, T. brunneus Ishida, T. extensicornis Priesner, T. minutissimus Linnaeus, T. pini (Uzel), T. subnudula (Karny), T. sukki Bhatti & Lee, T. trehernei Priesner, T. urticae Fabricius and T. vitticornis Karny. A previously recorded species, Stenchaetothrips bambusae (Shumsher) is excluded from the Japanese fauna.

Occurrence in Japan of Frankliniella hemerocallis (Thysanoptera, Thripidae), with description of the larva and key to Frankliniella species from Japan.

The occurrence in Japan of the daylily thrips, Frankliniella hemerocallis, is confirmed. This thrips probably originated in Asia or Eurasia, because it is highly specific to Hemerocallis [Liliaceae] which is native to these areas. This thrips feeds on leaf, stem and petals rather than pollen. The second instar larva is described, and a key provided to the adults of Frankliniella species recorded from Japan.

A new genus of Thripinae (Thysanoptera, Thripidae) collected from Pandanus in Japan, Malaysia and Australia, with three new species.

Pandanothrips gen. n. is described, with three new species inhabiting Pandanus: P. ryukyuensis sp. n. from Japan, P. wangi sp. n. from Malaysia, and P. hallingi sp. n. from Australia. This new genus shows no relationship to Projectothrips Moulton, the only other Thripinae genus known to be associated with Pandanus. Pandanothrips is superficially similar to Danothrips Bhatti, a genus of leaf feeding thrips. The morphological relationships among these genera are discussed, and an illustrated key to the species of Pandanothrips is provided.

Six genera of the subtribe Macrothripina from Southeast Asia to Taiwan (Thysanoptera, Phlaeothripidae, Idolothripinae).

Six genera with 35 species of fungal spore feeding idolothripine thrips included in the subtribe Macrothripina of the tribe Pygothripini are recognised from Southeast Asia to Taiwan. In which one genus and 21 species are newly described: Aesthesiothrips breviconus sp. n., A. elongatus sp. n., Celidothrips floresi, sp. n., Ethirothrips colossus, sp. n., E. conopygus sp. n., E. dalatae sp. n., E. duricaudus sp. n., E. kasetsarti sp. n., E. longiceps sp. n., E. malaya sp. n., E. oculus sp. n., E. ommatus sp. n., E. puiensis sp. n., E. quadratus sp. n., E. saigon sp. n., E. setosus sp. n., E. tenuis sp. n., E. terminalis sp. n., E. thai sp. n., Fernothrips femoralis gen. et sp. n., Polytrichothrips malayanus sp. n., and two species are redescribed: E. longisetis and E. rubeus. Moreover, five species of two genera are newly recorded from Southeast Asia: E. brevis from Indonesia and Thailand, E. longisetis from Laos, E. obscurus from Indonesia and Thailand, E. rubeus from Indonesia, Singapore, Thailand and Vietnam, and Ischyrothrips crassus from Thailand. Generic definitions of two genera, Aesthesiothrips and Ethirothrips, are re-examined. Five keys are provided for: 12 Macrothripina genera from Asia, three Aestethiothrips species, two Celidothrips species from Southeast Asia, 26 Ethirothrips species from Southeast Asia to Taiwan, and three Polytrichothrips species.

Two new species of the genus Thrips Linnaeus (Thysanoptera, Thripidae) in Japan, with a revised key to Japanese species of Thrips.

Thrips coxalis sp. n. and T. spiranthicola sp. n. are described from Lespedeza buergeri and Spiranthes sinensis, respectively in Japan. Variation is discussed in campaniform sensilla on metascutum and abdominal tergite IX, also the distribution of microtrichia on hind coxae within Thripidae, and a revised key to Japanese species of Thrips is provided.

Taxonomic review of the Oriental genus Phylladothrips Priesner (Thysanoptera, Phlaeothripidae).

Species of the Oriental subtropical and tropical genus Phylladothrips of fungus-feeding thrips exhibit some diagnostic character states, usually with abdominal tergite VIII bearing two pairs of wing-retaining setae and male tergite IX setae S2 about as long as S1. These species are quite small, and the maxillary stylets unusually broad for Phlaeothripinae. Phylladothripstrisetaesp. nov. from Xizang, China and P.selangorsp. nov. from Selangor, Malaysia are described, and P.fasciae is newly recorded from China. All 11 species in this genus are revised with an illustrated key.

The genus Asianthrips, an Oriental fungus-feeding phlaeothripine (Thysanoptera, Phlaeothripidae).

The previously monobasic phlaeothripine genus Asianthrips is rediagnosed and revised with the following 17 new species: A. balianus sp. n., A. bamboosielloides sp. n., A. bicolor sp. n., A. borneoensis sp. n., A. dasycornis sp. n., A. dentipes sp. n., A. longior sp. n., A. magnus sp. n., A. malayanus sp. n., A. nobilis sp. n., A. pallens sp. n., A. parvinotus sp. n., A. setifer sp. n., A. sufflavus sp. n., A. sulawesiensis sp. n., A. taiwanus sp. n., A. vietnamensis sp. n. These species, all presumed to be fungus-feeding, are from seven different countries in Southeast Asia. An illustrated key is provided to 18 species in the genus.

Enigmatic male dimorphism in the Phlaeothripinae (Thysanoptera, Phlaeothripidae), with description of a new genus and species.

Nazonothrips toshifumii gen. et sp. n. is described from unidentified fungus in Taiwan. This fungus-feeding species probably belongs to the tribe Plectrothripini of the subfamily Phlaeothripinae. The males of the new species exhibit a strange allometric growth that appears to involve two patterns of variation, but it is not possible to be certain due to the small number of available specimens.

Contributions to the knowledge of Thysanoptera (Insecta) from Japan.

For the Thysanoptera fauna of Japan, Masumoto (2016) listed 405 species in 138 genera and four families, Aeolothripidae, Merothripidae, Thripidae and Phlaeothripidae. However, the species total included several undescribed species, and subsequently further genera and species have been described or recorded. Moreover, recently the present authors have found, through the study of collections in the Laboratory of Entomology, Tokyo University of Agriculture, seven more species of six genera that had previously not been known from Japan.

A new species of Odontothrips Amyot amp; Serville (Thysanoptera, Thripidae) from Japan.

Odontothrips kudoi sp. n. is described from Japan and details of Japanese distribution of O. biuncus John is recorded. Moreover, O. loti (Haliday) is excluded from the Japanese fauna.

The genus Parabaliothrips Priesner (Thysanoptera, Thripidae) with three new species from Japan and Taiwan, and two new records of related genera from Japan.

A new diagnosis of the genus Parabaliothrips is provided, together with a key to the nine recognized species and descriptions of the following: P. betulaceae n.sp., P. brevisetosus n.sp. and P. robustus n.sp. The European species Firmothrips firmus and Iridothrips mariae are newly recorded from Japan.

Two new species of Neohydatothrips John (Thysanoptera, Thripidae) from Japan, with a record of micropterous N. elaeagni (Kudo).

Neohydatothrips bicolor sp. n. and N. fascipennis sp. n. are described from Japan, and the micropterous female of N. elaeagni (Kudo) is newly recorded. An identification key is provided to the 10 Neohydatothrips species known from Japan.

Two new species of Pezothrips (Thysanoptera, Thripidae) in Japan and Europe, with designation of lectotype of type species.

Pezothrips nadeshiko n. sp. is described from Dianthus superbus var. longicalycinus at Honshu, Japan and P. pelikani n. sp. is described from Czech Republic. A lectotype is designated for P. frontalis (Uzel), the type species of this genus, and this species is re-described. An illustrated identification key to the world species of Pezothrips is also provided.

Further studies on Scirtothrips genus-group (Thysanoptera, Thripidae) in Japan, with five new species.

Previously four genera and eight species of Scirtothrips genus-group have been known from Japan. Five new species are described, Scirtothrips betulaceae sp. n., S. cryptomeriae sp. n., S. illicii sp. n., S. passiflorae sp. n. and S. pini sp. n., and Anascirtothrips arorai is newly recorded from Japan. Moreover, males of Parascirtothrips fagaceae and S. flavus are described for the first time.

Three new species of the genus Thrips (Thysanoptera, Thripidae) in Japan.

A revised key is provided to 33 species of the genus Thrips recorded from Japan, including the descriptions of three new species, T. rhamni, T. shiranensis, T. unisetifer.

Review of the Aeolothripidae (Thysanoptera) in Japan.

Japanese Aeolothripidae are reviewed, with three genera and 10 species recognized including the following four new species: Aeolothrips fukusimensis sp. n., A. setosus sp. n., Desmidothrips japonicus sp. n. and Franklinothrips oblongus sp. n. One species, A. gloriosus, is excluded from the Japanese fauna. Moreover, A. kurosawai is newly recorded from Taiwan and A. luteolus is newly recorded from Korea.

Rhamphothrips genus-group (Thysanoptera, Thripidae) in Japan, with three new species.

In Japan, no members of Rhamphothrips genus-group have hitherto been known, but three species of this group are here newly described from Japan: Exothrips yaeyamanus sp. n., Rhamphothrips nemunoki sp. n. and R. ogasawarensis sp. n. Moreover, an uncertain species of Exothrips is recorded from Okinawa on Poaceae.

Anaphothrips genus-group: key to world genera, with two new species and three new records from Japan (Thysanoptera, Thripidae).

An identification key is provided to the 40 genera worldwide that comprise the Anaphothrips genus-group of Thripinae. Oxythrips japonicus sp.n. and Rubiothrips galii sp.n. are described from Japan, and the members of Anaphothrips genus-group from Japan are reviewed, with 15 species in eight genera. Anaphothrips swezeyi Moulton, Caprithrips insularis Beshear and C. melanophthalmus (Bagnall) are newly recorded from Japan.

Paroxythrips gen. n. (Thysanoptera, Thripidae), associated with the gymnosperm order Araucariales in Japan and Australia.

An Oxythrips-like new genus and species, Paroxythrips podocarpi, is described from Podocarpus macrophyllus in Japan. An Australian species, Oxythrips agathidis Morison, that is associated with Agathis is transferred to Paroxythrips.

Studies on Dendrothripinae (Thysanoptera, Thripidae) from Japan, with new records and one new species.

Pseudodendrothrips maculatus sp.n. is described from Morus leaves in Japan, and the following five species of Dendrothripinae are newly recorded from Japan: Leucothrips furcatus Hood, L. nigripennis Reuter, L. piercei (Morgan), Pseudodendrothrips darci (Girault) and P. lateralis Wang. Moreover, P. bhattii is newly recorded from Taiwan. An identification key to Pseudodendrothrips species from Japan and Taiwan is provided, and the metathoracic pleural area is compared between several Dendrothripinae genera.