The Japanese species of Monoctenus (Hymenoptera: Diprionidae).

The Japanese species of Monoctenus are revised and keyed. The following seven species and subspecies are recognized: M. cryptomeriae Togashi, 2001 from Honshu, M.

A study of the genus Fagineura (Hymenoptera, Tenthredinidae, Nematinae).

The East Asian genus Fagineura Vikberg Zinovjev, 2000 (Hymenoptera, Tenthredinidae) is redefined to comprise the following 11 species, divided into two species groups: F. crenativora species group: F. brevicornis Liu, Li Wei, 2021 from China, F.

Gilpinia hakonensis and similar species in Japan and ovipositors of five European Gilpinia species (Hymenoptera, Diprionidae).

The following three Japanese conifer sawflies are described or redescribed with figures of the ovipositors and male genitalia: Gilpinia hakonensis (Matsumura, 1912) from Honshu and Kyushu, Japan and Korea, G. amamiana Okutani, 1965, from Amami Oshima Island and Tokunoshima Island, Japan and G. okinawa sp.

Taxonomic and biological notes on Pristiphora ribisi Togashi, 1990, (Hymenoptera, Tenthredinidae) injurious to gooseberries and currants.

Taxonomic and biological notes are given for the East Asian sawfly Pristiphora ribisi Togashi, 1990, injurious to Ribes. The following new synonyms of this species are proposed: Pristiphora (Pristiphora) anivskiensis Haris, 2006, syn. nov.

Konowia Brauns, 1884, and Monoxiphia, n. gen. (Hymenoptera, Xiphydriidae): Palaearctic woodwasps with simple tarsal claws on all legs.

The Palaearctic xiphydriid genus Konowia Brauns, 1884, is redefined and the component species are revised on the basis of a close examination of stability and taxonomic use of previously used and newly introduced characters. A new genus, Monoxiphia, is proposed for Konowia harai Shinohara, 2019, from Japan (Monoxiphia harai (Shinohara, 2019), n. comb.

Caliroa slug sawflies of Japan (Hymenoptera, Tenthredinidae).

Japanese species of Caliroa (Hymenoptera, Tenthredinidae) are the following 13 species, five of which are described as new: C. aizankei Hara, sp. nov.

The Xiphydria annulitibia group in northeastern Asia (Hymenoptera, Xiphydriidae).

The Xiphydria annulitibia group is defined to include the following five species from northeastern Asia: X. annulitibia Takeuchi, 1936, from Japan (Hokkaido, Kunashiri Is., Honshu, Shikoku), Korea and Russia (Sakhalin, Primorskij kraj), X.

Proteomic Characterization of Lignocellulolytic Enzymes Secreted by the Insect-Associated Fungus oita, Isolated from a Forest in Northern Japan.

Wood-devastating insects utilize their symbiotic microbes with lignocellulose-degrading abilities to extract energy from recalcitrant woods. It is well known that free-living lignocellulose-degrading fungi secrete various carbohydrate-active enzymes (CAZymes) to degrade plant cell wall components, mainly cellulose, hemicellulose, and lignin. However, CAZymes from insect-symbiotic fungi have not been well documented except for a few examples.

Arge davidsmithi nom. nov. for Arge davidi Shinohara Hara, 2017 (nec Koch Liston, 2012) (Hymenoptera, Argidae).

Koch Liston (2012) described an argid sawfly from South Africa and named it Arge davidi Koch Liston, 2012. Shinohara Hara (2017) very recently described another argid from Taiwan under the same name, Arge davidi Shinohara Hara, 2017. The latter authors simply overlooked Koch Liston's (2012) taxon and Arge davidi Shinohara Hara, 2017, is a primary junior homonym of Arge davidi Koch Liston, 2012.

Bird droppings on chestnut leaves or sawfly larvae: DNA barcodes verify the occurrence of the archaic (Hymenoptera, Xyelidae) in Hokkaido, Japan.

We made a molecular phylogenetic analysis using mitochondrial cytochrome oxidase subunit 1 (COI) gene sequences for ten unidentified Megaxyela larvae from Hokkaido, Honshu and Shikoku, Japan, and 15 identified adults of four Megaxyela, one Macroxyela and three Xyela species. It revealed that all larvae belonged to M. togashii Shinohara, 1992, which showed rather large intraspecific genetic variability even among the individuals from the same population.

The North African sawfly genus Prionomeion (Hymenoptera, Diprionidae), with a key to the Palaearctic genera of the subfamily Diprioninae.

The diagnostic characters are discussed for the North African genus Prionomeion Benson, 1939 (Hymenoptera, Diprionidae, Diprioninae). The type species, Prionomeion gaullei (Konow, 1906), is redescribed based on the holotype (female) and one male, both from Algeria. The second species of the genus, P.

Japanese species of the sawfly genus Nesodiprion (Hymenoptera, Diprionidae).

Nesodiprion flavipes sp. nov. associated with Tsuga diversifolia (Maxim.

Host plants of Empria sawflies (Hymenoptera, Tenthredinidae) in Japan include Rhododendron (Ericaceae).

New host plant records are given for six Empria species from Japan. They are Rosa multiflora [Rosaceae] for E. honshuana Prous & Heidemaa, 2011, Rubus sp.

Sawflies of the genus Emphytopsis (Hymenoptera, Tenthredinidae) associated with Stewartia (Theaceae) in Japan.

Japanese species of the sawfly genus Emphytopsis Wei & Nie, 1998, are reviewed and the following four species are recognized and keyed: E. flatoserrula Wei, 2011, from Kyushu, E. nigromaculata (Takeuchi, 1952) from Honshu, Shikoku and Kyushu, E.