Clidicus Laporte, 1832 currently comprises 27 species distributed in India (Karnataka, Tamil Nadu), Sri Lanka, Indonesia (Java, Kalimantan, Sumatra), Malaysia (Sabah, Sarawak), Laos, Vietnam, the Philippines (Mindanao), China (Hainan) and Australia (Queensland). Some species have conspicuously large adults reaching 8.5 mm, and they represent the largest known Scydmaeninae. Species of Clidicus were relatively poorly known until recently, when Orousset (2014) revised a large portion of this genus and described several new species. Other major studies include Besuchet (1971), who described Sri Lankan species, Jałoszyński et al. (2003) who recorded four new species from Vietnam and Laos, Jałoszyński (2009) with the first description of a Philippine species, and Zhou Li (2015), who discovered the first species in China. Another new species, representing the second Clidicus occurring in the Philippines, is described below.
A new species of the portunid genus, Monomia Gistel, 1848, is described from the South China Sea in Vietnam. Monomia lucida sp. nov. is morphologically most similar to M. argentata (A. Milne-Edwards, 1861), which was originally described from Sarawak, on the island of Borneo. In addition to the stout, forward-directed anterolateral teeth of the carapace, the subrectangular sixth segment of the male pleon, and the long and slender laterally bent first gonopods, adults of the new species reach a greater size, and can also be distinguished from M. argentata by the colour pattern on the natatory dactylus. The independent specific status of M. lucida sp. nov. is also supported by molecular evidence. Aside from a comparison of this new species with other known congeners, new photographs of the holotype of M. samoensis (Ward, 1939) are also provided.
Seven species of Strongylophthalmyia are described as new species: Strongylophthalmyia armipes n. sp. (Malaysia), S. biloba n. sp. (Indonesia), S. bukittinggiana n. sp. (Indonesia), S. minutissima n. sp. (Thailand), S. prominens n. sp. (Vietnam), S. strigosa n. sp. (China), S. vichrevi n. sp. (Russia). New data on morphology and distribution of S. bifasciata Yang et Wang 1992 and S. malayensis Evenhuis, 2016 are provided.
Yunnanosticta gen. nov. in the platystictid subfamily Sinostictinae is described from Yunnan, China. The genotype is Yunnanosticta wilsoni sp. nov., described here (holotype ♂ from Tongbiguan, Yingjiang County, Dehong Dai Jingpo Autonomous Prefecture, Yunnan, China, 23 vi 2015, leg. H.M. Zhang, to be deposited in the Natural History Museum, London). Yunnanosticta cyaneocollaris sp. nov. (holotype ♂ from Tongbiguan, Yingjiang County, Dehong Dai Jingpo Autonomous Prefecture, Yunnan, China, 23 vi 2015, leg. H.M. Zhang, to be deposited in the Natural History Museum, London) is also described.
Rhabdamia spilota Allen Kuiter 1994 (Apogonidae), a poorly known cardinalfish previously known only from the Philippines, Indonesia and the Red Sea, is redescribed on the basis of 70 specimens (20.9-61.2 mm standard length) (including types), from the Indo-West Pacific (Red Sea, Andaman Sea, Japan, South China Sea, the Philippines, Indonesia, New Caledonia, and Australia). Because most reports of the similar species R. gracilis (Bleeker 1856), following its original description, were based on misidentifications, R. gracilis is also redescribed (based on 98 Indo-West Pacific specimens from Seychelles, Maldives, Andaman Sea, Japan, Malaysia, Indonesia, New Caledonia, and Australia, 27.9-59.3 mm standard length); a lectotype is designated for it. Rhabdamia spilota differs from R. gracilis in having 27-33 (mode 30-31) developed gill rakers [vs. 22-27 (mode 24) in the latter], 27-33 (30) gill rakers including rudiments [vs. 23-27 (24-25)], a black stripe from the jaw tips to the anterior margin of the orbit (vs. black pigments only at snout and tip of lower jaw), 3-6 reddish brown to blackish blotches on the opercle and anterior of body (vs. blotches absent), and indistinct black pigment restricted to caudal fin outer margins (vs. pigment scattered over entire fin). Rhabdamia gracilis exhibits sexual dichromatism, female specimens larger than 41.3 mm SL having one or two black stripes on the lateral surface of the body; the stripes are absent in males and smaller females. No evidence of sexual dichromatism was found in R. spilota.
The genus Molpa Walker was previously considered to be disjunctly distributed in broad-leaf rain forests in India and Malaysia. Here we report one new species Molpa dulongensis sp. nov. from subtropic broad-leaf rain forests in southwestern Yunnan Province in China. This is a part of the Indo-Burma biodiversity hotspot area. So we can infer that Molpa is continuously distributed in broad-leaf rain forests found in Oriental Region. Redescription of the genus Molpa and description of the new species Molpa dulongensis sp. nov. are provided. The types are deposited in Insect Collection of Institute of Zoology, Chinese Academy of Sciences, Beijing, China (IZCAS).
We report here for the first time horsehair worms (Nematomorpha) from Hong Kong (China). Most specimens belong to the genus Chordodes, and can be assigned to C. bipilus, C. caledoniensis and to C. cf. moutoni. Two specimens have a cuticular pattern resembling the South American species C. peraccae or C. bouvieri, but for Southeast Asia this pattern is new. These two specimens are reported here as Chordodes sp. Additionally, Gordionus chinensis was found. One new species, Acutogordius koljai, is described from Malaysia. It has a characteristically-structured region posterior to the postcloacal crescent which sets it apart from previously described species in this genus.
The genus Doryscus Jacoby, 1887 is revised. Twelve new species are described: D. indochinensis sp. nov. from China (Yunnan), India, Laos, Thailand, Vietnam; D. krausi sp. nov. from Laos and Thailand; D. kubani sp. nov., from China (Yunnan); D. geiseri sp. nov. from Singapore and Thailand; D. nepalensis sp. nov. from Bhutan, north India, and Nepal; D. luzonensis sp. nov., and D. mindanaoensis sp. nov. from Philippines; D. barclayi sp. nov., D. boreri sp. nov., D. javanensis sp. nov., and D. sumatrensis sp. nov. from Indonesia; D. wangi sp. nov. from East Malaysia (Sabah). Doryscus chujoi Takizawa, 1978 and D. varians (Gressitt & Kimoto, 1963) are removed from synonymy with D. testaceus Jacoby, 1887. Doryscus nigricollis Jiang, 1992 and D. marginicollis Jiang, 1992 are regarded as junior synonyms of D. varians (Gressitt & Kimoto, 1963). A lectotype is designated for Doryscus testaceus Jacoby, 1887.
Lomanius annae sp. nov. is described from southern Vietnam. The species is characterized by the greatly developed dorso-basal process on cheliceral hand of males and by the partial effacement of all mesotergal grooves. The genus Lomanius contains four generic synonyms and currently comprises eight valid species distributed in China, Java, peninsular Malaysia, the Philippines, and Taiwan. The new species displays a general morphology similar to the former genus Paralomanius, with a combination of sexually dimorphic interocular mound (which is very large and strongly leaned back in males) and pedipalpus (which is extremely elongate in males). This morphological suite of features is herein called facies reclinobunoides. The replacement name Metibalonius triceratops nom. nov. is proposed for Trispinibunus abnormis Roewer, 1915, which is a junior secondary homonym of Ibalonius abnormis Strand, 1911. Finally, numerous morphological structures found in Podoctidae are recognized and named: (1) the cheliceral comb, present on cheliceral fingers, (2) the chained tubercular ridges, present on dorsal scutum and (3) several others related to the ocular region. The distribution of these two structures among podoctid species is not fully known, but both are absent in the former Ibaloniinae. We suggest that both structures may be useful to define supra-generic groups in the clade composed of the former Podoctinae and Erecananinae.
The Cyana bianca (Walker, 1856) species-group is revised. Cyana bianca malayana Bucsek, 2012 is upgraded to the species level. A new species, C. indosinica Volynkin Černý, sp. nov. (China: Yunnan, Thailand, Laos, Vietnam) and a new subspecies, C. quadripartita vieta Volynkin Černý, ssp. nov. (Vietnam) are described.
Two new species of Biantes Simon, 1885 (Biantidae: Biantinae) are described: Biantes calyptroideus sp. nov. (male and female) from China and Biantes spatulatus sp. nov. (male and female) from Malaysia. Biantidae is recorded from China for the first time.
Loeblites Franz, 1986 is a genus of Glandulariini with adults sharing a very similar body form and most taxonomically important structures with Syndicus Motschulsky, 1851. One of the most conspicuous differences between these genera is the antennal structure. In Syndicus, the antennomere XI is strongly reduced, much shorter than X and lacks the basal stalk, so that the two terminal antennomeres are compactly assembled. They either form one oval structure that appears as a single antennomere because the base of subconical antennomere XI is as broad as apex of X (Syndicus s. str.) or the antennomere XI forms a distinct small 'papilla' on top of X (subgen. Semisyndicus Jałoszyński, 2004) because the base of antennomere XI is much narrower than apex of X. Adults of Loeblites have unmodified antennae, with the antennomere XI strongly elongate and with a narrow basal stalk; additionally the antennae are strikingly slender, nearly filiform. Morphological structures of both genera were described and illustrated by Jałoszyński (2004, 2005). While Syndicus is species-rich, often abundant in leaf litter and under bark in subtropical forests (Jałoszyński 2004, 2006, 2008, 2009, 2011, 2014; Jałoszyński Nomura 2006; Yin Li 2015; Yin et al. 2014; Yin Zhou 2016; Zhou Yin 2017), and broadly distributed from southeastern Australia, through Southeast Asia, Yunnan (China) and Ryukyus (Japan), up to Sri Lanka, India and the Himalayas, Loeblites comprises merely four species known to occur in Malaysia, Thailand and China (Jałoszyński 2005; Zhou Li 2015). Loeblites mastigicornis Franz, 1986 is known to occur in Chiang Mai (northern Thailand), L. sabahensis Franz, 1992 and L. minor Jałoszyński, 2005 in Sabah (northern Borneo), and L. chinensis Zhou Li, 2015 in Yunnan (southwest China). Two females representing an undescribed species were also recorded from Yunnan by Zhou Li (2015). Specimens of this interesting genus are found rarely, in small numbers and they are typically sifted from leaf litter in subtropical forests.
This paper reports a new weevil genus Devernodes gen. n. established for five new species from Southeast Asia: D. alkippe sp. n. (China: Mt. Emei), D. asteria sp. n. (Vietnam: Tam Dao), D. chthonia sp. n. (Vietnam: Tam Dao; the type species), D. drimo sp. n. (Malaysia: Pasoh Forest Reserve) and D. methone sp. n. (Malaysia: Tanah Rata). All Devernodes are wingless and inhabit the forest leaf litter. Adult Devernodes share a combination of two head characters unique among weevils in Asia: antenna with apparently unsegmented club and 6-segmented antennal funicle, as well as strong constriction separating the eye-bearing rostrum from the head capsule. To test monophyly and investigate phylogenetic relationships of Devernodes, Maximum Likelihood phylogenetic analysis was undertaken using parts of mitochondrial (COI) and nuclear ribosomal (28S) genes, as well as the nuclear internal transcribed spacer (ITS2) from 14 Devernodes and 55 outgroup Curculionidae specimens. Results strongly corroborated monophyly of Devernodes and did not suggest its realistic sister-group. The new genus is assigned to the molytine tribe Lymantini (not represented in the DNA analysis) based on two potential synapomorphies: head markedly constricted behind eyes and presence of undivided female hemisternites IX (= "merged coxite and stylus"). Thus interpreted, Devernodes is the twelfth nominal genus of Lymantini and the first record of the tribe outside of the Americas. All original data (localities, DNA sequences, specimen images) are available online in public datasets dx.doi.org/10.5883/DS-DEVERNO1 and dx.doi.org/10.5883/DS-DEVERNO2.
Larvae of a gall midge were found feeding on the fungal rust Maravalia pterocarpi (Pucciniomycetes: Pucciniales: Chaconiaceae) infesting the economically important sua tree Dalbergia tonkinensis (Fabaceae) on Hainan Island, China. The adults, pupae and larvae were collected, their morphology was studied and a segment of the Cytochrome Oxidase unit I (COI) mitochondrial gene was sequenced. The gall midge proved to be a species new to science that belongs to the genus Mycodiplosis (Diptera: Cecdiomyiidae). Comparison of the sequence to published Cecdiomyiidae sequences revealed that, despite being undescribed and unnamed, it was previously found in east and south-east Asia to feed on several rust species: Puccinia coronata (Pucciniomycetes: Pucciniales: Pucciniaceae) that develops on Lolium multiflorum (Poaceae), Puccinia sp. on Zea mays (Poaceae), Puccinia arachidis on Arachis hypogaea (Fabaceae) and Puccinia allii on Allium fistulosum (Amaryllidaceae). The new species is described and named here Mycodiplosis puccinivora Jiao, Bu Kolesik. It occurs in China, Japan, Thailand, Bangladesh and possibly Malaysia and Australia. In Hainan it has four to five generations per year.
The Barsine inflexa and the B. flavodiscalis species-groups are reviewed. Six new species are described: B. victoria Volynkin Černý, sp. nov. (North West Myanmar and North East India), B. kanchenjunga Volynkin Černý, sp. nov. (North East India), B. dejeani Volynkin Černý, sp. nov. (South West China: Sichuan), B. thagyamin Volynkin Černý, sp. nov. (North Myanmar), B. hreblayi Volynkin Černý, sp. nov. (North Thailand) and B. siberuta Volynkin Černý, sp. nov. (Indonesia: Siberut Island). Adults, male and female genitalia of all species are illustrated.
Four new species of Grouvellinus Champion, 1923 with very long median pronotal carina are described from China: G. hongkongensis sp. nov. (Guangdong, Guangxi, Hong Kong), G. longiusculus sp. nov. (Jiangxi), G. mediocarinatus sp. nov. (Fujian, Guangdong), and G. robustus sp. nov. (Anhui). These species are obviously closely related to G. bishopi Jäch, 1984 described from Malaysia (Selangor). The latter is here recorded for the first time from Kedah and Perak (Malaysia). Habitus photographs, detailed line drawings of the male genitalia, as well as a key to the males of the species of Grouvellinus with very long median pronotal carina are provided.
Three new species of the genus Cyana Walker, 1854 are described: C. artemis sp. n. (southeastern China, Thailand, Laos, Vietnam), C. butyracea sp. n. (Vietnam) and C. kucheri sp. n. (Vietnam). The first two species are related to the Himalayan C. moelleri (Elwes, 1890) and the Indochinese C. intercomma Černý, 2009. Despite the external similarity of C. kucheri sp. n. to C. moelleri and its allies, by the genitalia structure this species is related to C. gazella (Moore, 1872). Adults and male and female genitalia of new and related species are illustrated.
Seven new species of the genus Deltoplastis Meyrick are described: D. acutangulata Wang et Yu, sp. nov., D. anatoliana Wang et Park, sp. nov., D. multidentalis Wang et Yu, sp. nov. and D. similihoristis Wang et Yu, sp. nov. from China; D. aculeata Wang et Yu, sp. nov. and D. spatuliunca Wang et Yu, sp. nov. from Malaysian Borneo; and D. ovidiscalis Park et Wang, sp. nov. from Vietnam. Deltoplastis horistis (Meyrick, 1910) is newly recorded in China and its female is described for the first time. Images of adults and genitalia of the new species are provided.
Micryletta inornata (Boulenger 1890), the type species of the genus Micryletta, was originally described from the island of Sumatra in Indonesia. Subsequently, this species has been widely reported from Sundaland (Sumatra and Malay Peninsula), Indo-China, Northeast India and South Andaman, up to southern China and Taiwan. However, since the original description there has been no further report of this species from the type locality or the island. During a herpetofaunal survey in Sumatra, several specimens that are morphologically concordant with the original description and the syntypes of M. inornata were found, and thus the species was rediscovered after 125 years. Here, we provide a redescription of the species based on the freshly collected specimens, along with a detailed morphological and molecular comparison with known congeners. Further, using molecular data from the mitochondrial 16S rRNA gene, our study recovered the Sumatran M. inornata as a phylogenetically distinct lineage from all other populations previously referred to this species. This confirms that all known Micryletta 'inornata' populations from regions outside Sumatra constitute several other lineages representing either new species or previously available names currently considered as synonyms, consequently requiring taxonomic validation in the future.
Asian herminiine moths of the Herminia decipiens complex are revised and five allopatric species are recognized, i.e. Herminia decipiens (Hampson, 1898) in Nilgiri Hills, Khasi Hills, South China, Indochina, Malay Peninsula, H. terminalis (Wileman, 1915) in Taiwan, H. yuksam sp. nov. in East Nepal, Sikkim, H. borneo sp. nov. in Borneo and H. amamioshima sp. nov. in Amami-oshima Is., Shimo-Koshikijima Is. and South Kyushu (Kagoshima). Key to all species is given.