Two new nematodes,Pseudelzalia longiseta gen. nov., sp. nov. and Paramonohystera sinica sp. nov. (Monhysterida: Xyalidae), from sediment in the East China Sea

Pseudelzalia longiseta gen. nov, sp. nov. and Paramonohystera sinica sp. nov. from subtidal sediment in the East China Sea are described. Pseudelzalia is characterized by 6 labial papillae and 10 cephalic setae, cylindrical buccal cavity, elongate (>2 anal body diameter) spicules, and conico-cylindrical tail devoid of terminal setae. It differs from Elzalia by the absence of terminal setae. Pseudelzalia longiseta sp. nov. is 647–853 μm long, has 7–8 μm long cervical setae, 11–14 μm long caudal setae, 25–41 μm long spicules about 2.1–2.7 anal diameter, and pointed tail-tip. Paramonohystera sinica possesses 12 cephalic setae, a character found in four congeners: Paramonohystera buetschlii (Bresslau and Schuurmans Stekhoven in Schuurmans Stekhoven, 1935, Paramonohystera pilosa Boucher, 1971, Paramonohystera concinna Lorenzen, 1977 and Paramonohystera halerba Fadeeva and Belogurov, 1987. It differs from P. buetschlii by shorter body (933–1023 μm versus 2000–2200 μm); from P. pilosa by the much shorter spicules (79–88 μm versus 167 μm) and narrower head (13–16 µm versus 32 µm); from P.concinna by smooth cephalic setae (versus segmented); and from P. halerba by the absence of two rows of setae on the ventral side of the tail (versus present). Based on the evaluation of nominal species, we recognize 14 valid species and provide an emended diagnosis and a tabular key for Paramonohystera.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:474B8F17-AED7-4078-8176-DFC499B78526     

New species of Streblosoma (Thelepodidae,Annelida) from the Mediterranean Sea: S. pseudocomatus sp. nov., S. nogueirai sp. nov. and S. hutchingsae sp. nov.

ABSTRACT

In the framework of faunistic research conducted along the Apulian coast of Italy, three new species of thelepodid polychaetes are reported: Streblosoma pseudocomatus sp. nov., S. nogueirai sp. nov. and S. hutchingsae sp. nov. The taxonomic position of S. comatus is clarified and emended as Thelepus comatus. The described species are characterised by their C-shaped arrangement of uncini. The species are compared with their closest congeners and a synoptic table is provided for the species of Streblosma with C-shaped tori.

urn:lsid:zoobank.org:pub:7AE78305-6949-46F3-B61A-D93792038F7A

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urn:lsid:zoobank.org:act:9BCE7F71-81DD-43FE-8C95-DD7A572B9973

urn:lsid:zoobank.org:act:BEC2919B-4CAD-4314-B829-79E02C5D53A3     

Cienfuegia gen. nov. (Xyalidae) and Pseudoterschellingia gen. nov. (Linhomoeidae), two new genera of free‐living marine nematodes from the Caribbean Sea

Two new genera of nematodes are described from the Caribbean Sea. Cienfuegia gen. nov. belongs to the Xyalidae based on the position of the anterior gonad constantly left of the intestine, cuticle clearly striated, second and third circle of anterior sensilla inserted at the same level and buccal cavity surrounded by pharynx. The new genus is differentiated from other genera by the buccal cavity divided in two chambers and by the four cephalic setae being longer than the six outer labial setae. Within the Xyalidae, Cienfuegia shows most affinities with the genera Daptonema and Theristus. Pseudoterschellingia gen. nov. is placed within the Linhomoeidae on the basis of the presence of anterior rounded amphidial fovea, unarmed narrow buccal cavity, distinctive cardia and presence of apophysis of gubernaculum. Pseudoterschellingia is closely related to the genera Terschellingia and Terschellingioides, but is differentiated by the crypto‐spiral amphidial fovea, and conical buccal cavity surrounded by pharyngeal tissue.     

Taxonomy of Palaearctic scythridids: description of Falkovitshella hindukushi sp. nov. and Scythris wadiqeltella sp. nov. (Lepidoptera: Gelechioidea: Scythrididae)

Two new species are here described and illustrated: Falkovitshella hindukushi sp. nov. from north-eastern Afghanistan, and Scythris wadiqeltella sp. nov. from Palestine. Scythris inconspicuella Sinev is newly recorded from China, markedly extending its known range. http://www.zoobank,org/urn:lsid:zoobank.org:pub:2BC5092F-D004-4CB3-85C7-1CAA54AAE536     

Two new species of the family Photidae (Amphipoda: Corophiidea: Photoidea) from Brazilian waters,with description of Rocasphotis gen. nov.

A new species, Photis sarae sp. nov., is herein described from Guanabara Bay, Rio de Janeiro. The new species is similar to the Hawaiian species, Photis hawaiensis Barnard, 1955, and an undescribed species, Photis sp. F (LeCroy 2000 LeCroy, S.E. An illustrated identification guide to the nearshore marine and estuarine Gammaridean Amphipoda of Florida. Volume 1. Families Gammaridae, Hadziidae, Isaeidae, Melitidae and Oedicerotidae. Florida Department of Environmental Protection, Tallahassee, Annual Report, Contract No. WM724, 195. 2000.  [Google Scholar]), from Biscayne Bay, Florida. Photis sarae sp. nov. can be distinguished from both species in having gnathopod 2 basis with two long setae on posterior margin, palm with only one spine (excluding palmar corner), pereopod 3 anterior margin of merus with long plumose and simple setae, and dactyli of pereopods 5–7 with accessory spine and telson trapezoidal with distal margin concave. Also, Rocasphotis gen. nov. is described based on material collected from Atol das Rocas, which is closely related to the genus Photis and also corresponds to a new species. Rocasphotis gen. nov. mainly differs from Photis in having antenna 1 shorter than antenna 2, peduncular article 1 longer than article 3, accessory flagellum absent, coxae 1–4 with sparse slender setae; lateral cephalic lobe weakly extended and acute distally; eyes large, poorly developed, composed of sparse ommatidia, and partly enclosed in the lobe. A key for all genera of the family Photidae is given.     

Disjunct distribution of Szeptyckiella gen. nov. from New Caledonia and South China undermines the monophyly of Willowsiini (Collembola: Entomobryidae)

Morphology of scales is an important taxonomical character at all levels of Entomobryidae taxonomy. A new scaled genus of Collembola, Szeptyckiella gen. nov., and three new species are described: Szeptyckiella boulouparica sp. nov. and Szeptyckiella sinelloides sp. nov. from New Caledonia, and Szeptyckiella lii sp. nov. from South China. The genus, assigned to Willowsiini, is characterized by pointed scales on the body, eyes and pigment absent, antennal apical bulb absent, dens lacking spines and scales, and bidentate mucro with a short basal spine. It is closest to Hawinella from Hawaii but the latter possesses a falcate mucro. However, its morphological characteristics and its disjunct distribution raise a number of problems. Its widely disjunct distribution is difficult to explain in terms of palaeobiogeographical or more recent dispersal events. The new genus is similar to Sinella without consideration of scales, although both genera are placed in different tribes following the current supra-generic classification of Entomobryidae. We discuss other cases of paired genera differing only by the presence or absence of scales, and placed in either Willowsiini or Entomobryini. On this basis, we assume that scale presence could independently occur in the former tribe, questioning the monophyly of the tribe Willowsiini.     

Retromalisus damzeni,gen. et sp. nov., a second Baltic amber taxon of the extinct family Berendtimiridae (Insecta: Coleoptera)

ABSTRACT

A second Baltic amber taxon, Retromalisus damzeni, gen. et sp. nov., is discovered in the previously monotypic extinct family Berendtimiridae. The morphological portrait of Berendtimiridae is complemented with the data on the structure of prosternum and abdomen.     

Depressorotunda gen. nov., a new remarkable Uropodina mite genus from South-East Asia with description of four new species (Acari: Mesostigmata)

A new genus Depressorotunda gen. nov. and four new species are described from South-East Asia, namely Depressorotunda malayana sp. nov. and Depressorotunda seticaudata sp. nov. from Malaysia, Depressorotunda thailandica sp. nov. from Thailand and Depressorotunda mirifica sp. nov. from Vietnam. A key to the species of the genus Depressorotunda is provided with 28 original drawings and scanning micrographs.     

The family Leucospidae (Hymenoptera: Chalcidoidea) from the South of Saudi Arabia,with the first report of the genus Micrapion and description of Leucospis arabica sp. nov.

The family Leucospidae (Hymenoptera: Chalcidoidea) from Saudi Arabia is reviewed. Specimens were mainly collected from the south-western region of the country – Raydah (Abha, Asir), Sajid (Farasan Islands, Jazan) and Wadi Tourabah (Mandaq, Al Baha); and from Egypt – Wadi Khoshb (Sinai Peninsula), as well as a specimen (Leucospis elegans Klug) deposited in the Efflatoun Bey collection, Cairo University, Egypt. The genus Micrapion Kriechbaumer is here recorded for the first time from the fauna of the Arabian Peninsula, with a single species, M. clavaforme. Leucospis arabica Gadallah and Soliman sp. nov. (dorsigera group) is described. Leucospis africana (elegans group) is also newly recorded from the Saudi Arabian fauna, in addition to L. elegans which has been previously recorded. An illustrated key and a list of all leucospid species recorded and expected to occur in Saudi Arabia are provided.

www.zoobank.org/lsid:Zoobank.org:pub:40BEF37F-0D92-4AEF-9990-30C1CFC3A7A7     

A new earthworm genus Nouraguesia gen. nov. from French Guiana with description of two new species (Oligochaeta,Glossoscolecidae)

Nouraguesia gen. nov., consisting of three species, is described from Eastern Amazonia. Species belonging to this genus are middle-sized earthworms inhabiting, based on our experience, decomposing tree logs and space filled with detritus between leaf-axils and trunk (e.g. in some palm species). The new genus is morphologically similar to the genus Andiorrhinus, but differs from it by the presence of numerous caeca encircling the intestine in segment 27. The three species belonging to the newly established genus are known from state Amapa in Brazil (N. amaparis (Righi, 1971)); and French Guiana (N. parare sp. nov., N. souadae sp. nov.).     

Species of Gyrodactylus von Nordmann, 1832 (Monogenea Gyrodactylidae) from poeciliid fishes,with a description of G. turnbulli sp. nov. from the guppy,Poecilia reticulata Peters

Gyrodactylus bullatarudis Turnbull, 1956 is described from Xiphophorus helleri × X. maculatus hybrids. Specimens from this host were morphologically indistinguishable from material of this species from Poecilia reticulata and P. sphenops, although differences in host specificity were noted. Gyrodactylus turnbulli sp. nov., a member of the G. eucaliae species group, is described from Poecilia reticulata. Gyrodactylus turnbulli has frequently been confused with G. bullatarudis, although the two species are only distantly related. They can be distinguished by differences in the structure of the dorsal bar, which is deeply notched in G. bullatarudis, and by the relative length of the ventral bar processes.     

A remarkable new genus and species of Rogadinae (Hymenoptera: Braconidae) of uncertain tribal placement,from Papua New Guinea,resembling Betylobraconini stat. nov.

Cyranorogas gen. nov. (type species C. depardeui sp. nov.) from Papua New Guinea is described and illustrated. The new taxon has a uniquely produced mid-longitudinal facial ridge, which differentiates it from all other genera of Braconidae. The difficulty of distinguishing the Betylobraconinae from the Rogadinae, especially from various members of the Yeliconini, is discussed, and they are formally synonymised here with the Betylobraconini recognised as a tribe of Rogadinae. No clear synapomorphy with either Yeliconini or Betylobraconini could be found for Cyranorogas leaving its tribal placement uncertain, attempts to obtain molecular sequence data having been unsuccessful.

http://zoobank.org/urn:lsid:zoobank.org:pub:62F13CF8-7821-451C-9F14-C40B2D1CC4B5     

Paremedius californica gen. nov. sp. nov., an ascothoracid parasite of Californian brisingid asteroids

A new species of the family Dendrogastridae (Ascothoracida: Crustacea) from Californian waters is described. The species is endoparasitic in asteroids of the family Brisingidae. It is placed in a new genus, intermediate in position between Bifurgaster and Dendrogaster, characterized by the absence of secondary branching and the possession of a middle piece.     

Arphthicarus andamanensis sp. nov., a new species of ptyctimous mite (Acari,Oribatida) from the Andamans

A new species, Arphthicarus andamanensis sp. nov., from the Andaman Islands is described and illustrated. Some known species of ptyctimous mites from the northern and southern islands of the Andamans and the Eastern Ghats of continental India are noted.     

Meteorus acerbiavorus sp. nov. (Hymenoptera,Braconidae), a gregarious parasitoid of Acerbia alpina (Quensel) (Lepidoptera,Arctiidae) in North Finland

The new gregarious parasitoid Meteorus acerbiavorus sp. nov. (Hymenoptera, Braconidae) was reared from the cocoons of Acerbia alpina (Quensel) (Lepidoptera, Arctiidae) in north-western Finnish Lapland. This species belongs to Meteorus rubens (Nees) species group and differs from the most related M. rubens in the following features: the eyes densely setose; the median lobe of the mesoscutum, scutellum, mesopleuron, and the hind coxa entirely or at least partly rugulose-granulate or rugose-areolate and sometimes with granulation; the ovipositor subapically with distinct dorsal node; the ventral borders of the first metasomal tergum weakly separated by narrow space in its basal half; the colour of the body and legs mostly or entirely dark; the fore wing more or less darkened. Phylogenetic relationships among several Meteorus species close to M. rubens including new M. acerbiavorus were investigated based on DNA sequence fragments of the mitochondrial COI and the nuclear 28S rDNA genes. The discussions on the species groups of Meteorus, on distribution of Acerbia alpina in the Holarctic and on its known parasitoids are presented.     

A new deep-water calanoid copepod and the phylogeny of the genus Nullosetigera nom. nov. in the Nullosetigeridae nom. nov. (pro Phyllopus: Phyllopodidae) from Japanese waters

Nullosetigeridae nom. nov. is proposed for Phyllopodidae Brodsky, 1950, nom. nud., and Nullosetigera nom. nov. is introduced for Phyllopus Brady, 1883, non Rafinesque, 1815. A new species, Nullosetigera auctiseta, is described from Japanese waters. Nullosetigera mutica comb. nov. (Sars, 1907) and N. mutata comb. nov. (Tanaka, 1964) are redescribed. Phylogenetic analysis implies that two groups, N. auctiseta–N. mutica group and N. mutata–N. impar–N. bidentata–N. helgae group, exist within the genus Nullosetigera and that the new species first diverges with N. mutica. The relatively advanced species, N. impar, N. bidentata, and N. helgae are the most widespread, and are vertically distributed from the epipelagic to the bathypelagic layers.     

CXIII.-Lystrosaurus primitivus,sp. nov., and the origin of the genus Lystrosaurus

Abstract

An Anomodont specimen recovered from the Lystrosaurus-zone of the South African Karoo system is very similar to some of the Russian Dicynodonts, and is in structure intermediate between Lystrosaurus and Dicynodon. It is named Lystrosaurus primitivus, although it is too late stratigraphically to be the actual ancestor of the genus Lystrosaurus.     

Persica qeshmensis gen. nov. sp. nov from the Persian Gulf (Platyhelminthes: Polycladida: Acotylea), with remarks on reproductive structures

A new genus of acotylean polyclad, Persica qeshmensis gen. nov. sp. nov. (Acotylea, Pleioplanidae), was collected from intertidal rocky shores of the Northern Persian Gulf, Iran. The genus Persica is established on the presence of small tentacles; tentacular and cerebral eyes; spermiducal bulbs; true seminal vesicle; prostatic vesicle of atomata-type; muscular coiled ejaculatory duct, provided with a stylet, absence of a vagina bulbosa or Lang’s vesicle. Persica qeshmensis is characterised by a sandy beige to light brown background colour, with pale brown microdots, light grey ventral body surface, coiled ejaculatory duct embedded in parenchymatous cell mass, elongated sigmoid stylet, a well-developed penis sheath located in a small male atrium, and with a non-muscular blind chamber extending anteriad from the vagina to the level of the genital sucker.

http://zoobank.org/urn:lsid:zoobank.org:pub:FAA7AA0A-6954-47D0-A5B2-1A2EC04050C3