First record of the predatory stink bug species Picromerusgriseus (Dallas) (Hemiptera, Heteroptera, Pentatomidae, Asopinae) in Japan, with an illustrated key to the Japanese species of the genus Picromerus Amyot & Serville.

Background: The predatory stink bug genus Picromerus Amyot & Serville, 1843 (Hemiptera, Heteroptera, Pentatomidae, Asopinae) comprises 11 species found in the Northern Hemisphere. In Japan, two species have been recorded to date. However, an easy-to-understand identification method, such as an illustrated key, is lacking. Currently, Picromerusgriseus (Dallas, 1851) has been recorded in Bangladesh, Bhutan, China, Indonesia, Myanmar, Pakistan and Taiwan, but not in Japan. New information: Picromerusgriseus was recorded in Japan for the first time, based on a single individual collected from grasslands around the fields of Ishigaki Island of the Ryukyu Islands, which belong to the Oriental Region. This discovery represents the easternmost record of the species. An illustrated key to the species of Picromerus occurring in Japan is also provided.

Taxonomic review of the tingine genera Cysteochila, Hurdchila, Physatocheila, and Xynotingis from Japan, with description of a new genus (Hemiptera: Heteroptera: Tingidae).

Species of four lace bug genera of the subfamily Tinginae (Hemiptera: Heteroptera: Tingidae), namely Cysteochila Stl, 1873, Hurdchila Drake, 1953, Physatocheila Fieber, 1844, and Xynotingis Drake, 1948, occurring in Japan, are revised. A total of 13 species are identified and diagnosed. Previous records of Cysteochila consueta Drake, 1948 from Japan are considered to be the misidentification of C. chiniana Drake, 1942. Limnostatua gen. nov. is described to accommodate Leptodictya (currently Hurdchila) lewisi Scott, 1880 (type species of the new genus). A new synonymy is proposed: Limnostatua lewisi (Scott, 1880), comb. nov. = Cysteochila vota Drake, 1948 syn. nov. Three new combinations, namely Physatocheila chiniana (Drake, 1942) comb. nov., P. consueta (Drake, 1948) comb. nov., and P. euthenia (Drake Ruhoff, 1965) comb. nov., all of which were transferred from Cysteochila, are proposed. Three species, namely C. abundantis Drake Poor, 1937, P. consueta comb. nov. (previous records all pertaining to misidentifications) and P. euthenia comb. nov., are newly recorded from Japan. Finally, identification keys for Japanese tingid genera and subgenera as well as for species of Cysteochila and Physatocheila are provided.

First record of Urostylishubeiensis Ren (Hemiptera, Heteroptera, Urostylididae) from Japan, with an illustrated key to the Japanese urostylidid species.

Background: Although the Japanese species of Urostylididae are of interest to not only heteropteran taxonomists, but also to the public, an illustrated key for all species of the family from the country is lacking. To date, the urostylidid species Urostylishubeiensis Ren, 1997, has been known to occur in China and Korea, but not in Japan. New information: Urostylishubeiensis is recorded from Japan for the first time and represents the easternmost occurrence of this species. In Japan, it inhabits the broad-leaved forest of Tsushima Island and was found on Quercusacutissima Carruth. (Fagaceae). An illustrated key to the species of Urostylididae occurring in Japan is provided.

Alloiothucha artocarpi (Horvth) (Hemiptera: Heteroptera: Tingidae) found on jackfruit, Artocarpus heterophyllus Lam. (Moraceae): first representative of the genus from Laos, and the synonymy of Cetiothucha Drake amp; Ruhoff.

The lace bug genus Alloiothucha Drake, 1927 (Hemiptera: Heteroptera: Tingidae) is recorded from Laos for the first time with the redescription of Alloiothucha artocarpi (Horvth, 1926), which has been originally described from Indonesia (Java Island) in Latin. This species was collected on jackfruit, Artocarpus heterophyllus Lam. (Moraceae) in Laos, and may represent a pest of potential future concern. An identification key to all described species of Alloiothucha and arguments for a junior synonymy of Cetiothucha is presented: Alloiothucha Drake, 1927 = Cetiothucha Drake Ruhoff, 1965, syn. nov. Two new combinations are proposed: Alloiothucha constanti (Guilbert, Pham Soulier-Perkins, 2018), comb. nov. and Alloiothucha physalia (Drake Ruhoff, 1965), comb. nov. from Cetiothucha.

First record of the lace bug genus Eritingis (Drake and Ruhoff) (Hemiptera: Heteroptera: Tingidae) from Japan and Thailand.

BACKGROUND: The lace bug genus Eritingis Drake and Ruhoff, 1962 is widely distributed in the Australian and Oriental Regions, whereas only a single species, E. recentis (Drake and Poor, 1937), has been recorded from the Oriental Region. To date, E. recentis is known to occur in Indonesia, Malaysia, Papua New Guinea, Singapore and Vietnam, but has not been recorded from Japan and Thailand. NEW INFORMATION: Eritingis and E. recentis are recorded from Japan and Thailand for the first time.

A taxonomic review of the genus emPhysopelta/em (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan, with a new record of emPh. parviceps/em from China.

In this paper, we revised the physopeltine genus Physopelta Amyot Serville, 1843 (Hemiptera: Heteroptera: Largidae) from Japan, Korea, and Taiwan. Five species were recognized and diagnosed, including two new species, Ph. (Neophysopelta) lutaspidata sp. nov. from northern and central Taiwan and Ph. (N.) fusciscutellata sp. nov. from the Ryukyu Islands, Japan and Taiwan, and three known species, Ph. (N.) gutta gutta (Burmeister, 1834), Ph. (N.) parviceps Blöte, 1931, and Ph. (N.) quadriguttata Bergroth, 1894. Physopelta (Neophysopelta) fusciscutellata sp. nov., was previously regarded as either of the two species, Ph. (N.) cincticollis Stål, 1863 and Ph. (N.) parviceps, for populations from Taiwan. Previous records of Ph. (N.) cincticollis from Japan proper and Korea, and Ph. (N.) slanbuschii (Fabricius, 1787) from the Ryukyu Islands were considered as misidentifications of Ph. parviceps. A key to facilitate the identification of the five species known in Japan, Korea, and Taiwan is provided. Additionally, Ph. (N.) parviceps is recorded from China (Guangdong Province and Zhejiang Province) for the first time.

New record of the lace bug species Acalypta marginata (Wolff) (Hemiptera: Heteroptera: Tingidae) from Japan.

BACKGROUND: The lace bug species Acalypta marginata (Wolff, 1804) has, to date, been widely known to occur in the Palaearctic Region, but has not been recorded from Japan. NEW INFORMATION: Acalypta marginata is recorded from Japan for the first time. Its habitat in Japan is the grassland of Hokkaido. A key to the species of Acalypta occurring in Japan is provided.

Taxonomic study of the subgenus Tropidocheila of the lace bug genus Tingis (Hemiptera: Heteroptera: Tingidae) from Japan, with description of Tingis (Tropidocheila) yamaboushi sp. nov. collected from Cornus kousa (Cornaceae).

The present article summarizes the taxonomy of the lace bug subgenus Tropidocheila Fieber, 1844 of the genus Tingis Fabricius, 1803 (Hemiptera: Heteroptera: Tingidae) from Japan. Three species, including a new species, were recognized: T. (Tr.) matsumurai Takeya, 1962, T. (Tr.) shaowuana Drake Maa, 1953, and T. (Tr.) yamaboushi sp. nov. The new species was collected from Cornus kousa Buerger ex Hance (Cornaceae) in the deciduous forest of Honshu. An identification key to the species of Tropidocheila from Japan is also presented.

Discoveries of the genera Baeochila and Idiocysta from Japan, with descriptions of two new species (Hemiptera: Heteroptera: Tingidae).

Two lace bug genera, Baeochila Drake Poor, 1937 and Idiocysta China, 1930 (Hemiptera: Heteroptera: Tingidae) are recorded from Japan for the first time, and two new species, B. horvathi sp. nov. and I. takarai sp. nov., are described. The former was collected from the vines of Hedera rhombea (Miq.) Bean (Araliaceae) and the bark of Trachycarpus fortunei (Hook.) H.Wendl. (Arecaceae) in suburbanized areas of Honshu, Shikoku and Kyushu, and the latter was collected from the leaves of Freycinetia formosana Hemsl. (Pandanaceae) in the laurilignosa ecosystem of the Ryukyu Islands. The distribution ranges and host plant relationships of the two new species are discussed. Keys to all species of the two genera and photographs of living individuals for the new species are also presented.

Heissiella donguri sp. nov. (Hemiptera: Heteroptera: Tingidae) feeding on Quercus gilva (Fagaceae): First representative of the genus from Japan.

The lace bug genus Heissiella Péricart, 1984 (Hemiptera: Heteroptera: Tingidae) is recorded from Japan for the first time, and a new species, which has been recorded as 'Tingis (Tropidocheila) sp.' or 'Tingis (Tropidocheila) shaowuana Drake Maa, 1953' (misidentification) by previous authors, is described under the name of H. donguri sp. nov. This new species was found on the leaves of Quercus gilva Blume (Fagaceae) in the laurilignosa ecosystem of Honshu and Kyushu, extending the known distribution range of the genus into the Palaearctic Region. The distribution range and the host plant relationship of the new species are discussed. A key to all described species of the genus and a photograph of a living individual for the new species are also presented.

A new species and a new record of the genus Acalypta (Hemiptera: Heteroptera: Tingidae) from Japan.

Two moss-feeding species of the lace bug genus Acalypta Westwood, 1840 (Hemiptera: Heteroptera: Tingidae), are reported from Japan. Acalypta cooleyi Drake, 1917, is recorded for the first time from Japan (Honshu), and a new species, A. pallidicoronata sp. nov., is described from Tsushima Island.

Physatocheila nigrintegerrima sp. nov. from Japan: a first fruit-feeder of the genus (Hemiptera: Heteroptera: Tingidae).

A new species of the lace bug genus Physatocheila Fieber, 1844 (Hemiptera: Heteroptera: Tingidae), is described from eastern Honshu, Japan under the name of P. nigrintegerrima. A photograph of a living individual is also given. This species is found on the fruits of Hovenia dulcis Thunb. (Rhamnaceae) and is the first documented fruit-feeder of the genus. A key to the species of the genus from Japan is provided.