Revision of the smiling worms,genus Prosorhochmus Keferstein, 1862, and description of a new species,Prosorhochmus belizeanus sp. nov. (Prosorhochmidae,Hoplonemertea, Nemertea) from Florida and Belize

A new species of Prosorhochmus is described from Belize and Florida based on morphological, reproductive and sequence data. Similar to Prosorhochmus nelsoni (Sanchez, 1973 Sanchez, M. 1973. Sobre 4 especies de nemertinos de Quintero (Chile) [On the four nemertean species from Quintero (Chile)].. Studies on Neoropical Fauna, 8: 195–214. [Taylor & Francis Online] , [Google Scholar]), Prosorhochmus belizeanus sp. nov. is gonochoric and oviparous; all other species of Prosorhochmus are viviparous hermaphrodites. Prosorhochmus belizeanus sp. nov. differs from P. nelsoni by having significantly larger stylets and different arrangement of acidophilic cephalic glands. Sequence divergence between the two is 7.4% (16S) and 9.1% (COI), comparable to divergence from the viviparous hermaphroditic species. Prosorhochmus Keferstein, 1862 Keferstein, W. 1862. Untersuchungen über niedere Seethiere [Studies on lower marine animals].. Zeitschrift für Wissenschafliche Zoologie, 12: 1–147. German [Google Scholar] is revised based on re‐evaluation of the type and voucher material as well as fresh specimens collected by us. We conclude that Prosorhochmus adriaticus Senz, 1993 Senz, W. 1993. Nemertinen europäischer Küstenbereiche (Nebst ergänzenden Angaben zur Anatomie von Apatronemertes albimaculosa Wilfert & Gibson, 1974) [Nemerteans of the European shores (with additional data on anatomy of Apatronemertes albimaculosa Wilfert & Gibson, 1974)].. Annalen des Naturhistorischen Museums, Series B, 94/95(B): 47–145. German [Google Scholar] is insufficiently described and cannot be distinguished from Prosorhochmus claparedii Keferstein, 1862 Keferstein, W. 1862. Untersuchungen über niedere Seethiere [Studies on lower marine animals].. Zeitschrift für Wissenschafliche Zoologie, 12: 1–147. German [Google Scholar]. We re‐establish Prosorhochmus korotneffi Bürger, 1895 Bürger, O. 1895. Die Nemertinen des Golfes von Neapel und der angrenzenden Meeres‐Abschnitte [The nemerteans of the Gulf of Naples and adjacent waters]. Fauna and Flora der Solfes von Neapel.. 22: 1–743. German [Google Scholar] from its previous synonymization with P. claparedii and designate it as type species of Arhochmus gen. nov.     

A new feather mite genus of the family Psoroptoididae (Acari: Analgoidea) from cassowaries

A new feather mite genus Hexacaudalges gen. n. (Psoroptoididae: Psoroptoidinae) is established based on the type species Megninia casuaricola Proctor, 2001 Proctor, H. C. 2001. Megninia casuaricola sp. n. (Acari: Analgidae), the first feather mite from a cassowary (Aves: Struthioniformes: Casuariidae).. Australian Journal of Entomology, 40: 335–341. [Crossref], [Web of Science ®] , [Google Scholar], which was originally described from the southern cassowary Casuarius casuarius (Struthioniformes: Casuariidae). Morphological peculiarities of this genus, its taxonomic position within the family Psoroptoididae and possible origin are discussed. We also present a clarification of setal nomenclature for this family of mites.     

Pentatrichosiphum (Sternorrhyncha: Aphididae), a generic account with the description of a new species from Hainan,China

The aphid genus Pentatrichosiphum Basu, 1969 Basu, A. N. 1969. Four new genera and nine new species of aphids (Homoptera) from West Bengal, India.. Oriental Insects, 3: 169–186. [Taylor & Francis Online] , [Google Scholar] is reviewed. Pentatrichosiphum longirostrum n. sp. from Lauraceae in Hainan, China is described. Pentatrichosiphum luteum Basu, 1969 Basu, A. N. 1969. Four new genera and nine new species of aphids (Homoptera) from West Bengal, India.. Oriental Insects, 3: 169–186. [Taylor & Francis Online] , [Google Scholar] is recorded for the first time from China, the first record of this genus. Some hitherto unknown morphs of P. luteum are described. The genus is redefined and keys to the four known species worldwide are also provided. The taxonomic status of Pentatrichosiphum is discussed based on morphological characters. Type specimens are deposited in the Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, Beijing, China (ZMCAS).     

Rehabilitation of Bryconaethiops yseuxi Boulenger, 1899 (Characiformes: Alestidae) from the Congo River basin,Africa

Bryconaethiops yseuxi Boulenger, 1899 Boulenger, G. A. 1899. Matériaux pour la faune du Congo. Poissons nouveaux du Congo.. Annales du Musée du Congo, Tervuren, Zoologie 1(4: Polypères, Clupes, Mormyres, Characins), : 59–96.  [Google Scholar], originally described from “Haut Congo”, is rehabilitated. The species was synonymized, successively with B. microstoma (Günther, 1873 Günther, A. 1873. New fishes from Angola.. Annals and Magazine of Natural History, London (Series 4), 12(68): 142–144. [Taylor & Francis Online] , [Google Scholar]) and B. macrops Boulenger, 1920 Boulenger, G. A. 1920. Poissons recueillis au Congo belge par l'expédition du Dr. C. Christy.. Annales du Musée du Congo (Série 1), 2(4): 1–38.  [Google Scholar], subsequently rehabilitated, and then again considered as a junior synonym of B. microstoma. Bryconaethiops yseuxi is here considered as a valid species, easily distinguished from all other Bryconaethiops species by its small size (maximum: 72.2 mm SL), 7.5 rows of scales between the dorsal‐fin origin and the lateral line; 11–13/1/8–12 gill rakers on the first gill arch and long dorsal‐fin and anal‐fin bases, respectively, 15.7–17.6% of SL and 22.7–25.9% of SL.     

A new genus and species of Neotropical Anacolini and new distributional records (Insecta,Coleoptera, Cerambycidae)

A new genus is described: Acanthocornis gen. nov., type species, Acanthocornis flavus sp. nov. from Brazil, Pará. A new species is described: Atrocolus guarani sp. nov. from Paraguay, Cordillera, which differs from Atrocolus mariahelenae Monné and Monné, 2008 Monné, MA and Monné, ML. 2008. Atrocolus mariahelenae, novo gênero e espécie de Anacolini (Coleoptera, Cerambycidae). Iheringia Sér Zool, 98(2): 215–217. [Crossref], [Web of Science ®] , [Google Scholar] principally by the sparse punctures in the occiput and pronotum and by the dull interspaces between elytral carinae. We present new distributional data for Myzomorphus gounellei Lameere, 1912 from Brazil, São Paulo, and Biribellus martinsi Galileo, 1987 Galileo, MHM. 1987. Sistemática das tribos Meroscelisini e Anacolini (Coleoptera, Cerambycidae, Prioninae) nas Américas. II, Anacolini. Rev Bras Entomol, 31(4): 481–705.  [Google Scholar] from Brazil, Rondônia, and new country data for Myzomorphus scutellatus Sallé, 1849 Sallé, A. 1849. Coléoptères nouveaux de l'Amérique. 2e partie. Ann Soc Entomol Fr, 2(7): 429–435.  [Google Scholar] and Nicias alurnoides (Thomson, 1857), both from Trinidad and Tobago, and Xanthonicias prostrata Galileo, 1987 Galileo, MHM. 1987. Sistemática das tribos Meroscelisini e Anacolini (Coleoptera, Cerambycidae, Prioninae) nas Américas. II, Anacolini. Rev Bras Entomol, 31(4): 481–705.  [Google Scholar] from Peru, Junin. All the species are illustrated.     

Differentiation of external morphology of Oribatella Banks, 1895 (Acari: Oribatida: Oribatellidae), in light of the ontogeny of three species

Differentiation of external morphology of Oribatella Banks, 1895 was investigated, in light of the ontogeny of O. quadricornuta (Michael, 1880 Michael, AD. 1880. A further contribution to the knowledge of British Oribatidae. J Roy Micr Soc London, 3: 225–251. [Crossref] , [Google Scholar]), O. superbula (Berlese,1904 Berlese, A. 1904. Acari nuovi. Manipulus III. Redia, 2: 10–32.  [Google Scholar]) and O. calcarata (CL Koch, 1835 Koch, CL. 1835. “Deutschlands Crustaceen, Myriapoden und Arachniden”. In Regensburg, Germany: Verlag Friedrich Pustet 1–3.  [Google Scholar]) studied here for the first time, and that of the other species from the literature. The pattern of gastronotal setae in larvae is similar, except for lack of seta h ₃ in O. nortoni Behan-Pelletier, 2011 Behan-Pelletier, VM. 2011. Oribatella (Acari, Oribatida, Oribatellidae) of eastern North America. Zootaxa, 2973: 1–56. [Crossref] , [Google Scholar], while that of nymphs and adults is differentiated. The nymphs of most species have 15 pairs of gastronotal setae, but those of O. metzi Behan-Pelletier, 2011 Behan-Pelletier, VM. 2011. Oribatella (Acari, Oribatida, Oribatellidae) of eastern North America. Zootaxa, 2973: 1–56. [Crossref] , [Google Scholar] and most nymphs of O. calcarata have 13 pairs. The nymphs of most species carry the exuvial scalps of previous instars on apical parts of gastronotal setae da, while setae dm and dp, located under these scalps, are subjected to translocation, reduction in size or loss. In O. berlesei (Michael, 1898 Michael, AD. 1898. “Oribatidae”. In Das Tierreich, Lief. 3. Vol. 8 (Acarina). Berlin: Verlag von R. Friedländer und Sohn Edited by: Schulze, FE. 1–93. [Crossref] , [Google Scholar]), O. nortoni, O. quadricornuta and O. sexdentata Berlese, 1916 pair dp takes a more lateral position, compared with the larvae, in O. superbula and O. canadensis Behan-Pelletier and Eamer, 2010 Behan-Pelletier, VM and Eamer, B. 2010. The first sexually dimorphic species of Oribatella (Acari, Oribatida, Oribatellidae) and a review of sexual dimorphism in the Brachypylina. Zootaxa, 2332: 1–20. [Crossref] , [Google Scholar] it is reduced in size (in the latter species pair dm is also reduced), while O. metzi loses setae dm and dp. In contrast, the nymphs of O. calcarata do not carry the scalps, and usually lose setae c ₁ and dm. The adults of all species lose setae c ₁, c ₃ and d-series, compared with the tritonymph, and only 10 pairs of notogastral setae remain (c ₂, l-, h- and p-series), but O. quadricornuta and O. calcarata rarely retain seta c ₃ unilaterally, which indicates the order of setal loss in Oribatella according to Shaldybina (1972 Shaldybina, ES. 1972. Some morphological characters of ceratozetid moss mites (Oribatei). Ucenyje zapiski Gor Gosud Pedagog Institut, Gorki, 130: 35–66. In Russian [Google Scholar]).     

Redefinition of the parastenocaridid genus Proserpinicaris (Copepoda: Harpacticoida), with description of three new species from Korea

Proserpinicaris young sp. nov., Proserpinicaris wangpi sp. nov. and Proserpinicaris imjin sp. nov. are described from subterranean waters of South Korea. They are short-range endemics, allopatric in distribution and closely related to each other, and to two other Far Eastern congeners. Distinguishing features are limited to the general habitus shape, proportions of the caudal rami and degree of sexual dimorphism. The genus Proserpinicaris Jakobi, 1972 Jakobi, H. 1972. Trends (Enp.P4 Mänchen) innerhalb der Parastenocarididen (Copepoda Harpacticoidea). Crustaceana, 22: 127–146. [Crossref] , [Google Scholar], as redefined here, is Palaearctic in distribution, with the centre of diversity in southern Europe, and 20 valid members, all of which share a large hyaline spiniform structure on the male fourth leg basis as a synapomorphy. A key to species is provided. Genera Niponnicaris Jakobi, 1972 Jakobi, H. 1972. Trends (Enp.P4 Mänchen) innerhalb der Parastenocarididen (Copepoda Harpacticoidea). Crustaceana, 22: 127–146. [Crossref] , [Google Scholar] and Pannonicaris Jakobi, 1972 Jakobi, H. 1972. Trends (Enp.P4 Mänchen) innerhalb der Parastenocarididen (Copepoda Harpacticoidea). Crustaceana, 22: 127–146. [Crossref] , [Google Scholar] are established as its junior subjective synonyms, Lacustricaris Jakobi, 1972 Jakobi, H. 1972. Trends (Enp.P4 Mänchen) innerhalb der Parastenocarididen (Copepoda Harpacticoidea). Crustaceana, 22: 127–146. [Crossref] , [Google Scholar] is formally synonymized with Parastenocaris Kessler, 1913, and Parastenocaris lacustris Chappuis, 1958 Chappuis, PA. 1958. Le genre Parastenocaris Kessler. Vie Milieu, 8: 423–432.  [Google Scholar] is designated as incertae sedis in Fontinalicaridinae Schminke, 2010 Schminke, HK. 2010. High-level phylogenetic relationships within Parastenocarididae (Copepoda, Harpacticoida). Crustaceana, 83: 343–367. [Crossref], [Web of Science ®] , [Google Scholar].     

Stegana castanea species group (Diptera,Drosophilidae) from the Oriental region

The Stegana castanea species group is established as a morphological group within the subgenus Steganina, based on two known and six new species from the Oriental region: Stegana (Steganina) bacilla Chen and Aotsuka, 2004 Chen, HW and Aotsuka, T. 2004. A survey of the genus Stegana Meigen from southern Japan (Diptera, Drosophilidae). J Nat Hist., 38: 2779–2788. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]; S. castanea Okada, 1988 Okada, T. 1988. Family Drosophilidae (Diptera) from the Lund University Ceylon Expedition in 1962 and Borneo collections in 1978–1979. Entomol Scand (suppl)., 30: 109–149.  [Google Scholar]; S. (S.) reni sp. nov.; S. (S.) tiani sp. nov.; S. (S.) tongi sp. nov.; S. (S.) wangi sp. nov., S. (S.) weiqiuzhangi sp. nov. and S. (S.) xui sp. nov. from southern China. A key to all the species of this group is provided.     

Gonopod segmentation and the Australian centipede Prionopodella (Chilopoda): testing a basal position in the Scutigeromorpha

The monotypic centipede genus Prionopodella Verhoeff, 1925 Verhoeff, K. W. 1925. Results of Dr. E. Mjöberg's Swedish scientific expeditions to Australia 1910–1913. 39. Chilopoda.. Arkiv för Zoologi, 26A: 1–62.  [Google Scholar] has until now been known only from the types of its type species, collected in Queensland, Australia, nearly a century ago. The female gonopods of Prionopodella were described as having a uniquely tripartite structure, viewed as primitive relative to the bipartite gonopod of all other Scutigeromorpha. An articulation in the syntelopodite is present in one syntype, but new specimens from central eastern Queensland show an, at most, incompletely jointed or entirely unjointed syntelopodite, as in other scutigeromorphs. Cladistic analysis of morphological characters including Prionopodella and the likewise monotypic Australian genus Prothereua Verhoeff, 1925 Verhoeff, K. W. 1925. Results of Dr. E. Mjöberg's Swedish scientific expeditions to Australia 1910–1913. 39. Chilopoda.. Arkiv för Zoologi, 26A: 1–62.  [Google Scholar], shows Prionopodella to nest within Thereuoneminae, allied to other Asian/Australian genera, rather than in a basal position within Scutigeromorpha as is implied by Verhoeff's theory about primitive gonopod structure.     

The freshwater shrimps of the genera Caridina and Parisia from karst caves of Sulawesi Selatan,Indonesia, with descriptions of three new species (Crustacea: Decapoda: Caridea: Atyidae)

The present study reports on collections of hypogean freshwater atyid shrimps of the genera Caridina Milne Edwards, 1837 Milne Edwards, H. 1837. Histoire naturalle des Crustacés, Comprenant l'Anatomie, la Physiologie et la Classification de ces Animaux, Vol. 2, 1–532. Paris (France): Libraire Encyclopedique de Roret.  [Google Scholar], and Parisia Holthuis, 1956 Holthuis, L. B. 1956. The troglobic Atyidae of Madagascar (Crudtacea, Decapoda, Natantia), Mem Inst Sci Madagascar ser.. A., 11: 97–110.  [Google Scholar], obtained from the karst caves and associated epigean waters of Sulawesi, Indonesia. Six species of Caridina were present, of which two are new to science and one is new to Sulawesi, as well as one new species of Parisia. Types of Caridina pareparensis De Man, 1892 De Man, J. G. 1892. Decapoden des Indischen Archipels.. Zool Ergebn Reise Niederland Ost‐Ind., 2: 265–527. pl. 15–29 [Google Scholar], and C. pareparensis parvidentata Roux, 1904 Roux, J. 1904. Décapodes d'eau douce de Cèlébes (Genres Caridina et Potamon).. Rev Suisse Zool., 12(3): 539–572. pl. 9 [Google Scholar], were re‐examined and redescribed; lectotypes for both taxa are designated. Caridina pareparensis parvidentata is here regarded as a distinct species. The new taxa are described, figured and compared with congeners.