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The Japanese phyline fauna is reviewed and updated; 127 species referred to 37 genera are now recognized. Eight new species in five genera, namely Eremophylus Yasunaga, Europiella Reuter Orthonotus Stephans, Pityopsallus Wagner and Psallus Fieber, are herein described as new to science. The genus Eremophylus, now considered to have a close relationship to Europiella Reuter, is proposed to be placed in the subtribe Oncotylina of the tribe Phylini, and four other genera treated herein are re-diagnosed or discussed. The female of Eremophylus hirtus Yasunaga is documented for the first time, with a detailed description of the female genitalia. Europiellomorpha Duwal is synonymized with Europiella, and eight Asian species of Pityopsallus are also transferred from Psallus Fieber. A key and checklist for all known Japanese genera are provided.

The fauna of plant bug subfamily Isometopinae in Taiwan and Japanese Southwest (Nansei) Islands is reviewed. Twenty-five species are recognized, including two new species of Myiomma Puton, M. austroccidens sp. nov. and M. kentingense sp. nov., which are herein diagnosed and described. In addition, Isometopus yehi Lin, 2004 is synonymized with I. bipunctatus Lin; Isometopidea yangi Lin is transferred to Kohnometopus; and a substitute name, Alcecoris linyangorum, is proposed for A. formosanus (Lin Yang) (= a junior secondary homonym of Alcecoris formosanus Lin). An annotated checklist, with updated distributional record and biological information, is provided for all treated taxa. A new tribe Sophianini is proposed for two genera, Alcecoris and Sophianus, characterized principally by the conspicuously modified antennal structures. An additional new species, Alcecoris cochlearatus sp. nov., found during examination of related Oriental specimens, is described from the Malay Peninsula.

Fulvius Stål (Cylapinae: Fulviini) is a large plant bug genus, with more than 80 described species distributed throughout the world (Schuh, 1995; 2002-2014). In Japan, five species listed below have been recorded mostly from the subtropical Ryukyu arc (Yasunaga, 2000, 2001; Yasunaga & Miyamoto, 2006; Yasunaga et al., 2012). Our recent closer examinations of these Japanese species suggest that (1) what was previously identified as Fulvius dimidiatus Poppius represents an undescribed species, and (2) F. nakatai Yasunaga & Miyamoto described from Okinawa Island is evidently conspecific with F. subnitens Poppius that was described from New Guinea but is now known from pantropical zones as well as Taiwan, Europe and United States (Gorczyca, 2006; Henry et al., 2011). The present paper provides a revised checklist for the Japanese species of Fulvius, with updated distributional records. A new species, F. nozawai, is diagnosed and described, its habitat and biology are also documented, and Fulvius nakatai is proposed as a junior synonym of the pantropical F. subnitens.

The Indochinese phyline plant bugs, belonging to the recently established tribe Decomiini Schuh & Menard, are reviewed. Fourteen species in four genera, Decomia Poppius, Decomioides Schuh, Malaysiamiris Schuh and Rubrocuneocoris Schuh, are now recognized from Indochina, including a remarkable new species, Decomia ishikawai Yasunaga, Duwal & Lee n. sp., herein diagnosed, described and discussed. The male of Decomia nigrissima Yasunaga, described only on the holotype female, is for the first time reported. An annotated checklist and a key to genera and species are provided to facilitate identification of the Indochinese taxa of the Decomiini.

Two oriine flower bug (Hemiptera: Heteroptera: Anthocoridae) genera, Bilia Distant, 1904 and Wollastoniella Reuter, 1884 are reported from Myanmar for the first time, diagnosed, and discussed. A new species, Bilia burma Yasunaga & Yamada sp. nov., is described, with information on the immature form, habitat and assumed prey; its closest sister species, B. castanea (Carvalho, 1951), is also re-diagnosed. Wollastoniella rotunda Yasunaga & Miyamoto, 1993 originally described from northern Thailand, is also documented along with its immature form and new host association. Both of the anthocorids found in Myanmar co-occurred with lace bugs (Tingidae). A checklist of all current members of Bilia and Wollastoniella is provided. The phylogenic positions of Bilia and Wollastoniella in the tribe Oriini is discussed.

Between 2010 and 2013, twenty-six plant bug (Miridae) and one flower bug (Anthocoridae) species were described from Thailand by Yasunaga, Yamada and their colleagues. The original description of each species stated that the holotype depository was 'SUT' (Suranaree University of Technology, Nakhon Ratchasima, Thailand). Because continuous maintenance for type specimens in SUT would become difficult, with the consent of SUT, we have transferred the depository for each of the following holotype specimens from SUT to 'DOAT' (Insect Collection, Entomology & Zoology Group, Plant Protection Research and Development Office, Department of Agriculture, Bangkok). Accordingly, we herein provide the necessary information on each holotype specimen to properly satisfy 'Recommendations 16C and 72F' of the International Commission of Zoological Nomenclature (ICZN, 1999).

The phyline plant bug genus Hypseloecus Reuter is reported from Thailand as well as the Indochina region for the first time, diagnosed, and discussed on its phylogenetic position. Eight new species, Hypseloecus castaneus, H. katrinae, H. nigrobrevis, H. phuvasae, H. sakaerat, H. schuhianus, H. sericosagus and H. siamensis, are described, all with color photographic images of live individuals. Four species were confirmed to be associated with inflorescence and/or fruits of Loranthaceae mistletoe (Santalales), particularly Scurrula spp. in Thailand. A checklist of Asian and New Guinean congeners and a key to Asian species (from Japan, Indochina and Philippines) are provided.