Zootaxa

**Revision of the ant-parasitizing genus Pseudacteon Coquillett (Diptera, Phoridae) from China**

GUANG-CHUN LIU — 2022-05-18

The ant-parasitizing genus Pseudacteon Coquillett from China is revised. Nineteen species are recorded, of which nine are new to science: P. robustisetosus sp. nov., P. inticlinatus sp. nov., P. reticulatus sp. nov., P. linzhiensis sp. nov., P. shennongjianus sp. nov., P. yunnanensis sp. nov., P. calceoliformis sp. nov., P. tianmuensis sp. nov., and P. parviflavus sp. nov. The species P. botulpalpatus Disney et Michailovskaya, P. rudisetosus Disney et Michailovskaya, P. setipalpatus Disney et Michailovskaya, P. setosus Disney et Michailovskaya, P. pullum Michailovskaya and P. formicarum (Verrall) are recorded for the first time in China. The putative female of P. pullum Michailovskaya and the putative males of P. trapeziformis Zhang et Liu and P. setipalpatus Disney et Michailovskaya are also newly described. All known species are redescribed and illustrated. A key to species from China is presented.

**A taxonomic study on the South Korean Diplonevra (Diptera: Phoridae)**

JUN-HO LEE — 2022-05-18

The South Korean species of the genus Diplonevra are revised and eight species are recognized. Three of these species, D. biflagella, sp. nov., D. incisura, sp. nov., and D. nigritarsis, sp. nov., are new to science and four species, D. abbreviata (von Roser, 1840), D. florescens (Turton, 1801), D. hirsuta Michailovskaya, 2000, and D. peregrina (Wiedemann, 1830), are described for the first time in Korea. Distribution of D. bifasciata (Walker, 1860), the only previously recorded species in Korean checklists, is confirmed based on figures of a female specimen in previous publications. Diplonevra lamella Liu & Yang, 2016 is considered a junior synonym of D. hirsuta Michailovskaya, 2000. The Chinese and Russian Far East records of D. pachycera (nec Schmitz) are treated as misidentifications of D. incisura, sp. nov. and D. nigritarsis, sp. nov., respectively. Also, the Chinese record of D. taigaensis (nec Michailovskaya) should be identified as D. biflagella, sp. nov. Detailed descriptions and photographs of three new species and four redescribed species and keys to eight males and seven females of Diplonevra species in South Korea are provided.

**Three new species of the shrimp genus Salmoneus Holthuis, 1955 from the Red Sea, with a new record of S. poupini Anker, 2010 (Malacostraca: Decapoda: Alpheidae)**

ARTHUR ANKER — 2022-05-18

Three new species of the alpheid shrimp genus Salmoneus Holthuis, 1955 are described from the Red Sea coast of Saudi Arabia: S. farasan sp. nov. from the Farasan Islands; S. arabicus sp. nov. from Thuwal and Farasan Banks; and S. kausti sp. nov. from Thuwal. Salmoneus poupini Anker, 2011, previously known from French Polynesia and the Philippines, is reported for the first time from the Red Sea, based on material from Thuwal, Farasan Banks and Farasan Islands. In addition, the previously known distributional range of the closely related S. komaii Anker, 2011 is extended from the Mariana Islands to French Polynesia.

Five new species and new records of caddisflies (Insecta: Trichoptera) from Australia’s ‘Top End’

DAVID I. CARTWRIGHT — 2022-05-18

Five new species of caddisflies are described from the ‘Top End’ of the Northern Territory, three in the family Ecnomidae—Ecnomina radonica sp. nov., Neboissomina topendica sp. nov., Wellsomina tamoides sp. nov.—and two in Polycentropodidae—Polyplectropus bamboosa sp. nov. and P. berryensis sp. nov. Four of these new species are endemic to the Top End, P. berryensis sp. nov. is also recorded from northern Western Australia. In addition, first reports are given for the Top End for two previously described species, one each in genera Ecnomus McLachlan and Wellsomina Cartwright, and new records are given for eighteen species of Ecnomus McLachlan, one further species of Ecnomina Kimmins and Neboissomina Cartwright, and six species of Wellsomina Cartwright (all Ecnomidae), four species of Nyctiophylax Brauer (Polycentropodidae), and Tinodes radona Neboiss (Psychomyiidae). Finally, one male (and three females) of Hyalopsyche disjuncta Neboiss (Dipseudopsidae) are recorded from the Northern Territory, the first adult specimens of this species found outside northeastern Queensland.

Revision of Embolemidae (Hymenoptera: Chrysidoidea) from the Middle East

MOSTAFA GHAFOURI MOGHADDAM — 2022-05-18

The family Embolemidae (Hymenoptera: Chrysidoidea) from the Middle East is taxonomically reviewed. Three species are reported, redescribed, and illustrated, Ampulicomorpha thauma Rasnitsyn & Matveev from Iran, Embolemus harteni Olmi from Yemen, and E. huberi Olmi from Iran. The extremely rare genus Ampulicomorpha Ashmead is here recorded for the first time from the Middle East. Embolemus harteni is further recorded from two more governorates of Yemen. A species identification key of Embolemidae from the Middle East, distribution maps, details of the morphological characters, and extensive colour photographs of every species are also provided. A brief discussion on the species relationships and their relevant ecoregions based on the currently limited available information is offered.

Seven new mitochondrial genomes of phytophagous scarab beetles (Coleoptera: Scarabaeidae) and phylogenetic implications

YUJIE LI — 2022-05-18

Among Scarabaeidae, the phytophagous scarab lineage including Melolonthinae, Cetoniinae, Dynastinae, and Rutelinae is considered important due to its members’ roles as agricultural pests or pollinators. In this study, the near-complete mitochondrial genomes of seven species from six genera in the phytophagous scarab lineage were newly sequenced: Anomala russiventris (Fairmaire, 1893); Apogonia cf. basalis (Moser, 1915); Apogonia splendida (Boheman, 1858); Coenochilus striatus (Westwood, 1874); Trichogomphus mongol (Arrow, 1908); Sophrops subrugatus (Moser, 1921) and Tetraserica leishanica (Liu, Bai, Yang & Ahrens, 2014). The complete mitochondrial genomes from the 6 species include 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), 2 ribosomal RNA genes (rRNAs), and 1 control region, which have a highly conserved gene arrangement, except for Tr. mongol with the rearrangement of 2 tRNA genes (tRNA-Ile and tRNA-Gln), which is a potential identified subfamily-level character of Dynastinae. In order to test whether the mitogenomic data are suited for high-level phylogenetic inferences, the substitution saturation and heterogeneity were analyzed. The results showed no sign that the phylogenetic inferences were biased by substitution saturation or the low heterogeneity of the sequence composition for most pairwise comparisons between the sequences for the entire dataset (13 PCGs) and the amino acids dataset (13 PCGs_AA). Based on the combined data of 13 PCGs and 13 PCGs_AA from the mitogenomes of 37 taxa, the phylogeny of the phytophagous lineage was explored using RAxML and Bayesian methods. The results confirmed that Cetoniinae, Rutelinae, and Dynastinae are monophyletic, and that the latter two are sister groups. Melolonthinae is a paraphyletic group, and its tribes, Diplotaxini, Euchirini, Melolonthini, Rhizotrogini, and Sericini, are a monophyletic group. The subfamily rank of Dynastinae and the tribe rank of Anomalini and Adoretini are supported.

**First report of the genus Thirumalaia Zettel & Laciny, 2021 (Hemiptera: Veliidae) in the Ryukyu Islands, Japan, with the description of a new species**

RYOSUKE MATSUSHIMA — 2022-05-18

The genus Thirumalaia Zettel & Laciny, 2021 (Veliidae: Microveliinae) was recently established with one Indian species. Here, a new species, T. kaara sp. nov., from Ishigaki-jima Island and Iriomote-jima Island, Ryukyu, Japan is described. Additionally, the distribution of the genus is updated and laboratory rearing information of the immature stages of T. kaara sp. nov. are provided.

**Description of a new species of the genus Tetrix Latreille (Orthoptera: Tetrigoidea: Tetrigidae) from Zhejiang, China**

GUANG-ZENG GAO — 2022-05-18