Description of two new species and a new genus of bopyrid isopod parasites (Bopyridae: Pseudioninae) of hermit crabs from China

This is the first record from China of the bopyrid isopod genus Asymmetrione, of which the new species Asymmetrione globifera, a parasite of the hermit crab Dardanus hessii (Miers) in Beibu Gulf and South China Sea, is described. The female A. globifera differs from Asymmetrione nossibensis Bourdon in the shape of its barbula and ornamentation of the first oostegite. A tabulation of the occurrence of all currently known species of Asymmetrione is included. New genus Parasymmetrione is described. The type species, Parasymmetrione tuberculineata, sp. nov., a parasite of Clibanarius corallinus (H. Milne-Edwards) Xisha, is similar in appearance to Asymmetrione spp. but differs, in the female, in not having the propodi of its pereopods produced into sockets and having uniramous uropoda; the male of P. tuberculineata sp. nov. differs from species of Asymmetrione in having the dactyli of only its first pair of pereopods markedly longer than those of the following pereopods.     

A review of the genus Scyracepon Tattersall, 1905 (Crustacea: Isopoda: Bopyridae), with description of a new species from China

The parasitic isopod genus Scyracepon Tattersall, 1905 is recorded from China for the first time, and a new species, Scyracepon distincta, is described from the host Jonas distinctus (Brachyura: Corystidae). Females of the new species can be distinguished from those of the other six species of Scyracepon by their subequal mid-dorsal projections on pereomeres 6 and 7 (lacking on other pereomeres) and pleonal segments with medial but not lateral fusion. Males of the new species have the first two pleomeres free, pleomeres 3–5 fused, and bear midventral tubercles on all pereomeres and the first pleomere. This is the first record of any species of Corystidae bearing parasitic isopods. Remarks on, and a key to, the seven known species of Scyracepon are provided.     

A new species of Metatrichoniscoides (Crustacea: Isopoda: Oniscoidea) from the coast of South Wales,U.K.

Summary

A new species of terrestrial isopod, Metatrichonixoides celticus is described and differentiated from other European species of the same genus. M. celticus occurs on the coast of South Wales, U.K. and its supralittoral habitat is outlined.     

Some new parasitic copepods (Siphonostomatoida: Nicothoidae) from deep-sea asellote isopods

Summary

The highly transformed siphonostomatoid Choniorhiza enaulis gen. et sp. nov. is described from an asellote isopod, Dendromunna sp., in the deep North Atlantic Ocean to the south west of the Azores. Male and female live inside a cyst on the dorsal side of the branchial chamber of the isopod. The new genus may be distinguished from all other genera of the Nicothoidae, except Rhizorhina, by the presence of oral processes replacing the cephalic appendages. It differs from Rhizorhina in the presence of a distinct urosome in the female. A key to all genera of the Nicothoidae is provided and Pseudonicothoe Avdeev & Avdeev is recognized as a junior synonym of Paranicothoe Carton. The male syntype of Paranicothoe cladocera Carton is designated as the lectotype because the female is an isopod. Sphaeronella bradfordae sp. nov. is described from an isopod of the genus Haploniscus caught on the Chatham Rise off New Zealand.     

A review of the genus Parapenaeon Richardson, 1904 (Crustacea: Isopoda: Bopyridae: Orbioninae), with description of three new species from China

Five species of the bopyrid genus Parapenaeon are reported from China, of which three are new to science, and one, Parapenaeon expansa Bourdon, 1979, is a new record. New species are Parapenaeon calculosa, sp. nov., Parapenaeon diatropa, sp. nov. and Parapenaeon sicyoniae, sp. nov., from the East and South China Seas. The female of each new species has six pleomeres, no lateral plates on the sixth pleomere, and biramous uropods, characters that place them in the genus Parapenaeon Richardson, 1904. Each can be distinguished from previously described species of the genus Parapenaeon in body shape, by the characters of oostegite 1, the barbula, brood pouch, pleopods and uropods of the females. A table including all of the currently recognized species of Parapenaeon with type localities, known geographical distribution and reported hosts, is given. A key to the recorded species of Parapenaeon Richardson, 1904 is provided, as is a new diagnosis of the genus.

http://zoobank.org/urn:lsid:zoobank.org:pub:35CD12BB-D1F3-48DF-BABB-2EAA3030395B     

The genus Thoradonta in Thailand (Orthoptera: Tetrigidae: Scelimeninae) with description of two new species

The genus Thoradonta Hancock (Orthoptera: Tetrigidae: Scelimeninae) is newly reported from Thailand. Two new species of the genus, Thoradonta lativertexoides sp. nov. and Thoradonta spiculobaoides sp. nov., are described and illustrated with photographs and compared with similar species. A taxonomic review of the genus Thoradonta is provided and a key to all known species of the genus is given.     

Encarsia (Hymenoptera: Aphelinidae) parasitoids of Bemisia species in Taiwan (Hemiptera: Aleyrodidae)

The whitefly genus Bemisia (Hemiptera: Aleyrodidae) is represented by five species in Taiwan, including the notorious global pest Bemisia tabaci. A catalogue of Encarsia species attacking these whiteflies, based almost entirely on previously unpublished records, is provided. A key for the identification of the 17 Encarsia species known to parasitize Bemisia species in Taiwan is provided. Three new species, E. guangxingana Shih, Ko and Polaszek sp. nov., E. lineolata Shih, Ko and Polaszek sp. nov. and E. magnalata Shih, Ko and Polaszek sp. nov., are described from Taiwan. These new species were all reared from Bemisia giffardi.     

A new Stelis (Dolichostelis) from northern Colombia (Hymenoptera: Megachilidae): first records for South America and a synopsis of the bee fauna from the Caribbean region of Colombia

The cleptoparasitic anthidiine bee genus Stelis Panzer is primarily Holarctic in distribution, extending as far south as Costa Rica. A new species of Stelis subgenus Dolichostelis Parker and Bohart is described and illustrated based on females collected in dry forests of the Caribbean region of Colombia. Stelis (Dolichostelis) costaricensis Friese is also recorded from dry forests but in western Colombia. These are the first records of the genus, as currently recognized, for South America. An updated key to the species of Dolichostelis and a synopsis of the diversity and biogeography of the bee fauna from the Caribbean region of Colombia are provided. Based on reports from the literature and data from collections, we provide a checklist consisting of 125 species in 48 genera of five families. The complex composition of this bee fauna parallels that of the flora, with taxa having the following origins or distributions: West Indian, North or Central American, Andean, xeric or temperate South American, and Neotropical widespread. A brief account on the contribution of George Salt to the knowledge of the biology of this Colombian bee fauna is also provided.     

Two new species of Microprosthema from the Western Atlantic (Crustacea: Decapoda: Stenopodidea)

Two new species of shrimp in the genus Microprosthema are described and figured on the basis of materials collected recently from the tropical western Atlantic. Specimens of one, Microprosthema manningi, have been collected from Florida, Mexico, Belize and Old Providence Island. The other new species, Microprosthema looensis, was taken from a single site in the Florida Keys. Microprosthema manningi is closely related to the western Atlantic M. semilaeve, while M. looensis is closely related to the Indo-Pacific M. scabricaudatum. However, both new species can be distinguished by numerous morphological differences, as well as by coloration.     

Desmosomatidae and Nannoniscidae (Crustacea,Isopoda, Asellota) from bathyal and abyssal depths off North Carolina and their evolution

The deep-sea asellote isopod (Crustacea) species, belonging to the families Desmosomatidae and Nannoniscidae, were studied from R/V Eastward collections of Duke University from three study sites off North Carolina. The Desmosomatid isopod Eugerda svavarssonni n. sp. is described from Site Alpha at 620m. Eugerda latipes Hansen, previously known from boreal North Atlantic, is also reported from this upper slope site. Two new desmosomatid isopods, Mirabilicoxa hessleri n. sp. and M. alberti n. sp., and a new nannoniscid isopod Exiliniscus chandravoli n. sp. are also described from site Beta from 2700 to 3700 m. A nannoniscid isopod Leutziniscus jebamoni gen n., n. sp., and a desmosomatid isopod, Prochelator sarsi n. sp., are described from the deepest study site Omega in the Hatteras Abyssal Plain. A new genus, Nannoniscella is erected to accommodate Nannoniscoides bicustatus Siebenaller and Hessler, 1977. This paper also includes discussions on comparative morphology and sexual dimorphism in species of Mirabilicoxa, zoogeography of species of the genus Eugerda and phylogeny with emphasis on the genus Prochelator.     

First record of the genus Gigantione (Epicaridea: Bopyridae: Pseudioninae) from Chinese waters,with description of three new species

The parasitic isopod genus Gigantione is first recorded from China. Four species are reported infesting xanthid and goneplacid crabs, three are new to science, and one is a new record from China. Gigantione ishigakiensis Shiino, 1941 Shiino, S. M. 1941. Further notes on Bopyrids from Kyûsyû and Ryûkyû.. Annotat Zool Jpn., 20: 154–158.  [Google Scholar], infesting Liagore rubromaculata (De Haan); G. hainanensis sp. nov., infesting Atergatis floridus (L.) and Atergatis sp., which differs from other recorded species in the shape of its barbula, first oostegite and subrectangular maxilliped; G. rhombos sp. nov., infesting Heteroplax dentata Stimpson, Eucrate alcocki Serene and Eucrate sp., its female distinguished from other species of Gigantione by having a prominent rhombic projection on the barbula; and G. tau sp. nov., infesting Carcinoplax longimanus (De Haan), the female of which differs from other species mainly by its T‐shaped pigmentation on the head. Four brachyuran crabs are first reported as hosts of bopyrids. A list of all brachyuran species so far recorded as bopyrid hosts in China is provided.     

A new genus and species of terrestrial isopod from Malaysia (Crustacea,Oniscidea, Platyarthridae)

A new terrestrial isopod, Cephaloniscus sociabilis gen. nov., sp. nov., from Fraser Hill in central Malaysia, is described and illustrated. The new genus belongs to the family Platyarthridae and is distinguished from other members of the family by the characteristic structure of the cephalon. The specimens were collected from the nest of the termite Hospitalitermes sp. (near medioflavus Holmgren) together with the ant Centromyrmex hamulatus (Karavaiev).     

The species of the parasitic bee genus Osirinus (Hymenoptera,Apidae)

The species in the genus Osirinus Roig-Alsina are revised. Seven species are recognized, including O. ruficrus, new species, from south-eastern Brazil and O. tarsalis, new species, from western Brazil and Peru. Osiris parvicollis Ducke and O. santiagoi Almeida are transferred for the first time to Osirinus. An identification key based mainly on females is provided.     

Three new species of Gamasiphis (Acari: Mesostigmata: Ologamasidae) from Brazil,with complementary information about Gamasiphis plenosetosus Karg and a key to the world species of the genus

Gamasiphis Berlese is one of the most diverse genera of Ologamasidae, with 68 described species, corresponding to about 15% of the species of the family. Until now, a single species of this genus was known from Brazil. Gamasiphis salvadori sp. nov., Gamasiphis flechtmanni sp. nov. and Gamasiphis edmilsoni sp. nov. are described based on the morphology of adult females and males collected from litter and soil in Piracicaba, São Paulo State, Brazil. The holotype of Gamasiphis plenosetosus Karg, 1994 was examined, given its close similarity with the latter species, and complementary morphological information about it is provided. A key for the separation of females of the 60 recognizable world species of Gamasiphis is provided.     

A new species of Zeuxo (Crustacea: Tanaidacea) from the French Atlantic coast

A new species of tanaidacean of the genus Zeuxo is described from 105 specimens dredged from the shallow inshore benthic marine fauna from Arcachon, western France. This is the only species of Zeuxo in the Lusitanian area. Its combination of a 7-articled uropod (6-articled endopod with elongate articles in the adult) with a conspicuous lacinia mobilis on the right mandible is unique for the genus. The spination and setation of the carpus of pereopod 2 is reduced in comparison with the most similar known species of Zeuxo. It is distinct from potentially sympatric species of the family Tanaidae in having five free pleonites without a dorsal fringe of setae.     

A report on two large collections of the squat lobster Munidopsis platirostris (Decapoda,Anomura, Munidopsidae) from the Caribbean,with notes on their parasites,associates, and reproduction

The reproduction and parasite associates of the squat lobster Munidopsis platirostris (A. Milne Edwards and Bouvier, 1894) were investigated based on collections made in the Bahamas and Curaçao with grassmat and bundled fishing net traps used to collect sipunculan worms and other small invertebrates. Size of ovigerous M. platirostris was significantly correlated with clutch size for females from both localities but females from the Bahamas produced significantly more eggs (on average 10.1 eggs/clutch) than females from Curaçao (on average 6.6 eggs/clutch). Early embryos of M. platirostris from the Bahamas were 0.74–0.82 mm in diameter, similar to some other species of Munidopsidae as well as Chirostylidae. Two species of crustaceans, another squat lobster and a leptostracan, as well as a limpet mollusc, were collected with M. platirostris in the Bahamas, while a sipunculan was an associated species in a Curaçao collection. One specimen of M. platirostris had an unidentified cryptoniscoid epicaridean isopod, possibly representing a new genus and species. Two specimens of M. platirostris each had one rhizocephalan externa of a species belonging to Lernaeodiscus Müller, 1862 but their morphology does not match that of L. schmitti Reinhard, 1950, the only species in the genus known from squat lobsters in the western Atlantic. Additional materials and tools, such as DNA analysis, are needed to describe these potentially new parasites and we suggest that use of these traps may be an effective method to obtain additional samples.