A new species and two new records of the moss-feeding lace bug genus (Hemiptera, Heteroptera, Tingidae) from Hokkaido, northern Japan, with an illustrated key to the Japanese species of the genus.

In this study, three species of the moss-feeding lace bug genus Westwood, 1840 (Hemiptera, Heteroptera, Tingidae, Tinginae, Acalyptaini) are reported mainly in Hokkaido, northern Japan. The first is that inhabits mosses growing on the floors of deciduous broad-leaved forests. The second is (Panzer, 1806) that mainly inhabits mosses growing on marshlands and is recorded from Japan for the first time.

First formal record of the feeding habits of Saileriolidae (Hemiptera, Heteroptera, Pentatomomorpha, Pentatomoidea), with redescription of (Schaefer & Ashlock, 1970), comb. nov. endemic to Vietnam.

In the present study, the rare true bug (Schaefer & Ashlock, 1970), (Hemiptera, Heteroptera, Pentatomomorpha, Pentatomoidea, Saileriolidae), which is endemic to Vietnam, is redescribed and transferred from the genus China & Slater, 1956 to the genus Hsiao, 1964 based on morphological characteristics. Adults and nymphs of this species congregate in groups of several individuals and suck sap from the abaxial side of the leaves of sp. (Lauraceae).