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Mantispidae is a lacewing family with over 400 extant species (Ohl, 2004, 2007; Oswald, 2015). The family is divided into four extant subfamilies Symphrasinae, Drepanicinae, Calomantispinae, Mantispinae and one extinct subfamily Mesomantispinae (Lambkin, 1986a, b; Wedmann & Makarkin, 2007). The living mantispids are distributed cosmopolitan except Antarctica. Fossil mantispids have been recorded since Early Jurassic (Ansorge & Schlüter, 1990; Wedmann & Makarkin, 2007; Khramov, 2013; Jepson et al., 2013, 2018a, b; Shi et al., 2019). The fossils are mainly from the Eurasia, with exception of two Miocene genera from Mexican and Dominican (Engel & Grimaldi, 2007).

Two species of the genus Allophrys Forster are described from Australia: A. fuscipes sp. nov. and A. gauldi sp. nov . These are the first descriptions of Allophrys species from Australia. A key to the Australian species of the genus is also provided. Key words: taxonomy, key, Tersilochinae, parasitoid

The Australian species of Notodascillus Carter are revised based on examination of available type material and extensive collections. Three very closely related species have been recognised: N. brevicornis (Macleay), N. sublineatus Carter and N. iviei sp. n. Detailed generic and species descriptions, key to the species and distribution data are provided.

Chinese species of Neptosternus Sharp, 1882 are reviewed. Neptosternus punctatus sp. nov. from Guangdong is describedand illustrated. Neptosternus yanbini Bian & Ji, 2009, described from Hainan, is shown to be a junior subjective synonymof the widely distributed Oriental Neptosternus hydaticoides (Regimbart, 1877) (syn. nov.). Neptosternus strnadi Hendrich& Balke, 1997 and N. maculatus Hendrich & Balke, 1997 are recorded from China for the first time. Anotherspecies—Neptosternus wewalkai Balke, Hendrich & Yang, 1997, known previously only from a single female from northernVietnam—is re-described based on male and female specimens from Guangxi, and also recorded from China for the firsttime. Neptosternus pocsi Sato, 1972 is removed from the Chinese fauna. A key to the six Neptosternus occurring in mainland China is presented.

The lectotype and paralectotype of Laemoglyptus sauteri (Pic, 1911) are herein designated. The following taxonomic changes are proposed: Laemoglyptus sauteri (Pic, 1911) = L. atripes Pic, 1921, syn. nov. = L. rubrithorax (Pic, 1912), syn. nov. Additionally, L. sauteri is redescribed in detail and supplemented with photos of the habitus and female genitalia, illustrations of clypeus, aedeagus and ventrite VII of females, and the distribution map. A key for the identification of Laemoglyptus species from Taiwan is also included.

Eight species of Zeugomutilla Chen, 1957 are reviewed. Zeugomutilla angkorensis Williams, sp. nov. (Cambodia, Thailand, Vietnam) and Z. pangi Lelej, sp. nov. (China: Hainan) are described and illustrated. A new combination is proposed for Z. spinulosa (Andre, 1898), comb. nov. (from Pristomutilla Ashmead, 1903). Zeugomutilla bainbriggei (Turner, 1911) and Z. horni (Andre, 1907) are newly recorded from India (Tamil Nadu), Z. pycnopyga Chen, 1957 is newly recorded from Thailand, and Z. saepes (Chen, 1957) from Cambodia and Thailand. An updated diagnosis of the genus and key to males and females are given.

The family Synchroidae Lacordaire, 1859 is a small group of beetles with an elongate, tapered, and slightly flattened body and brownish to black coloration. Members exhibit morphological similarity to some genera of Melandryidae, but can be distinguished based on larval morphology and the unmodified apical maxillary palpomeres. They are widely distributed throughout the Oriental, Palaearctic and Nearctic regions and possess the highest species diversity in Eastern Asia (Nikitsky 1999; Hsiao 2015). Synchroa bark beetles had been viewed as members of the Melandryidae for a long time, but were treated as an independent family in Boving & Craighead (1931). Crowson (1966) followed Boving & Craighead's treatment and suggested close relatives among the members of Zopheridae and Stenotrachelidae based on both larval and adult characters. Currently, only 8 species distributed amongst three genera have been described in this family: Mallodrya Horn, 1888 is a monotypical genus from North America; Synchroa Newman, 1838, the nominal genus and the largest genus widely distributed in North America, east Palearctic region and the Oriental region, including 5 species; Synchroina Fairmaire, 1898 is from the Oriental region and includes two species. (Nikitsky 1999; Hsiao 2015).Recently, the first author had the opportunity to examine the collection of the Museum of Biology, Sun Yat-Sen University, Guangzhou, China (SYSBM) discovering one remarkable species of Synchroa with dark coloration and a narrow prothorax, which are very different from previously described species of this genus. After careful examination and comparisons to other described species it is described here as new. In addition, an updated key to the world species of Synchroa is provided.

Type specimens of Cassidinae deposited at Sun Yat-sen University, Guangzhou, China were studied and as a result following new synonymies are proposed: Cassida expansa Gressitt, 1952 = C. smaragdocruciata Medvedev & Eroshkina, 1982 syn. nov.; C. concha Solsky, 1872 = C. juglans Gressitt, 1942 syn. nov.; Rhoptrispa dilaticotnis (Duvivier, 1891) = Rhadinosa abnormis Gressitt & Kimoto, 1963 syn. nov. Lasiochila fukiena Gressitt, 1950 stat. nov. is removed from synonymy of L. insulana Uhmann, 1929. Each taxon is provided with photograph of dorsal habitus and additional comment clarifiyng its status where necessary.

Remarks on Laius Guerin-Meneville and Dicranolaius Champion are provided. Laius falcifer Champion, 1921 is designated as the type species of Dicranolaius Champion, 1921. Dicranolaius bellulus is attributed to Boisduval (1835) not to Guerin-Meneville (1830). Dicranolaius c-purpureus (Lea) is redescribed and two closely related new species are described: D. weiri sp. n., and D. similis sp. n. Intybia Pascoe, 1866 is recorded from Australia for the first time and Laius filamentarius Lea, 1917 is regarded as member of Intybia comb. n..

Two species of ladybird beetles, one belonging to Phrynocaria Timberlake (Coccinellni) and the second to Chilocorus Leach (Chilocorini) collected by R.A. Wallace in the Maluku Islands (Indonesia) have identical body size and colour pattern with longitudinal stripes on elytra. Their external features were so similar that G.R. Crotch included both of them in the type series of Chilocorus wallacii Crotch, 1874. The specimen designated as the lectotype of Chilocorus wallacii belongs to Phrynocaria. Coelophora wallacii Crotch, 1874 is also transferred to Phrynocaria (new comb.) and becomes senior homonym and Phrynocaria crotchi new name is proposed for the secondary junior homonym. Chilocorus crotchi sp. nov. is described for the taxon misidentified as Chilocorus wallacii Crotch.

A new species of Anomala Samouelle (Coleoptera: Scarabaeidae: Rutelinae) is described from the Northern Territory of Australia. The new species is diagnosed by the single tooth along the external margin of protibia, medially interrupted marginal bead on pronotal base and the clypeus weakly reflexed anteriorly. The illustrated diagnoses of the remaining Australian species and the key to their identification is also provided.

Two new species, Megophrys acuta sp. nov. and Megophrys obesa sp. nov., are described based on a series of specimens collected from Heishiding Nature Reserve, Fengkai County, Guangdong Province, China. They can be distinguished from other known congeners occurred in southern and eastern China by morphological characters and molecular divergence in the mitochondrial 16S rRNA gene. M. acuta is characterized by small and slender body with adult females measuring 28.1-33.6 mm and adult males measuring 27.1-33.0 mm in snout-vent length; snout pointed, strongly protruding well beyond margin of lower jaw; canthus rostralis well developed and sharp; hindlimbs short, the heels not meeting, tibio-tarsal articulation reaching forward the pupil of eye. M. obesa is characterized by stout and slightly small body with adult females measuring 37.5-41.2 mm, adult male measuring 35.6 mm in snout-vent length; snout round in dorsal view; canthus rostralis developed; hindlimbs short, the heels not meeting, tibio-tarsal articulation reaching forward the posterior margin of eye. The discovery of these two new species further confirms that the diversity of this genus has been significantly underestimated. At present the genus Megophrys contains 56 species of which 35 species are distributed in China.

Parafleckium senjituense Li et al., 2012 is of great importance to clarify the phylogeny of the superfamily Isophlebioidea, as it has several significant structures considered as typical of either Campterophlebiidae or Isophlebiidae (Li et al. 2012). But the established genus and species was based on forewings only. We describe a new specimen, allowing precise description of some other important characters, especially those of the male hindwing. On the basis of this specimen, the diagnosis of Parafleckium senjituense is amended.

The new aeshnopteran genus and species Sinocymatophlebiella hasticercus is described from the Middle Jurassic Jiulongshan Formation of Inner Mongolia. It shows important similarities with the Jurassic genus Cymatophlebiella from Karatau, suggesting they could belong to the same family, but the latter genus is too poorly known to accurately establish its affinities. The present discovery supports the evolutionary scenario of a Jurassic rapid and massive diversification of the Aeshnoptera, followed by important extinctions during the Late Mesozoic.

A very well preserved fossil specimen of Rudiaeschna limnobia Ren and Guo, 1996, is described and diagnosis for Rudiaeschna is emended. Its clear morphological structures, including body characters, clarify and confirm the affinities of Rudiaeschna and the Rudiaeschnidae with Cymatophlebia Deichmüller, 1886, and the Cymatophlebiidae, previously inferred only through venational characters.

A new genus with a new species (Jurachresmoda gaskelli gen. et sp. nov.) of Chresmodidae (Insecta: Polyneoptera: Orthopterida) is described and illustrated. They were collected from the Middle Jurassic in Daohugou, Jiulongshan Formation, Inner Mongolia (Nei Mongol Autonomous Region), China. J. gaskelli have fringing hairs on tarsi and a part of tibiae of mid legs. These hairs and leg structures were probably associated with its water-skiing locomotion on freshwater. A high number of tarsomeres, e. g. ultra-articulated tarsi as reported in other species of Chresmodidae, are also found for this new species. But, these true tarsi are mixed with some wrinkles resulted from dehydration and compression during fossilization process. Nymphs of the new species are also described. This is the first time that long and segmented cerci of the nymph are described in Chresmodidae.

A new genus with a new species of Chresmodidae (Insecta: Gryllones), Sinochresmoda magnicornia gen. et sp. nov., including specimens of male, female and nymph, is described and illustrated. These fossils were collected from the Upper Jurassic-Lower Cretaceous of Yixian Formation of Liutiaogou Village, Inner Mongolia (Nei Mongol Autonomous Region), China. Both male and female possess wings, and have sexual dimorphism in antenna. Antennae of male are highly specialized and horn-shaped, incurvated as horn with the scape strongly expanded, and the first segment of the flagella incurvated as a pair of brackets, while antennae of female are normally filiform. Wings of the new species are short, not exceeding the length of the abdomen. Fringe hairs along the wing margins, a unique feature for Chresmodidae, are dense, wavy and bundled together. Nymphs and adults probably lived in the same environment. In addition, one specimen demonstrates the extraordinary structure of tarsus with a high number of “tarsomeres”, which has been reported in other species of this family.

Telmaeshna paradoxica gen. et sp. nov., is described from the Upper Jurassic to Lower Cretaceous Yixian Formation, near Chaomidian Village, Beipiao City, Liaoning Province, China. It is included in the Anisoptera: Aeshnoptera: Aeshnomorpha: Panaeshnida, on the basis of the following characters: strongly elongated pterostigma; well-defined anal loop and Rspl; undulated RP2, RP3/4 and MA; divided hypertriangle and discoidal triangle; and prolonged gaff. It cannot be assigned to any described extant or extinct family of Panaeshnida, but we refrain from erecting a new family to accommodate it until more features (forewing, body characters) are known. Consequently, this new genus is provisionally retained as family uncertain. Its phylogenetic relationships within Anisoptera are discussed.