Filistatinella spiders are found in semiarid areas of North America, and represent an ancient branch of the spider tree of life. After investigating specimens deposited in scientific collections, seven new species were discovered, and their morphology suggests Filistatinella are relatives of Pholcoides from Asia. This study suggests that many Filistatidae species remain to be discovered, and adds yet another piece to the puzzle of early spider evolution.
Volume 31 Number 6 2017
IS17020A spectacular new genus of Staphylinini rove beetle from the tropical Andes and its phylogenetic assessment (Coleoptera : Staphylinidae)
Neotropical insects are so poorly known that we keep discovering new taxa there, often of a puzzling nature. With the aid of morphology-based phylogenetic analysis, we describe such a rove beetle, a new genus and species placed in the south temperate subtribe Amblyopinina. This is a step towards elucidating Neotropical biodiversity and appreciation of the biogeographic complexity of its core, the tropical Andes.
IS16069Hedera caerulescens (Alcyonacea : Alcyoniidae), a new genus and species of soft coral from the temperate North Atlantic: invasive in its known range?
We describe a novel genus and species of soft coral from North Carolina. This species was not previously reported in the South Atlantic Bight, suggesting it may not be native to the region. The discovery of this species underscores the value of taxonomic work and highlights the need to investigate and document understudied taxa, including soft corals.
IS16091Astrocoryne cabela, gen. nov. et sp. nov. (Hydrozoa : Sphaerocorynidae), a new sponge-associated hydrozoan
All the species belonging to the hydrozoan family Sphaerocorynidae live in association with sponges and often show a confusing taxonomic history. According to both morphological and molecular analyses, we herein describe the new genus and species Astrocoryne cabela from the Red Sea and Maldives. The present study suggests that a comprehensive revision of the family is needed to clarify the diversity and evolution of this taxon.
IS17001Taxonomic reassessment of species within the chrysaoros group of Calisto (Lepidoptera : Nymphalidae : Satyrinae)
We reassess the taxonomic status of several Calisto Hübner taxa included in the archebates and hysius species groups. By using COI barcodes and morphological evidence, we recognise Calisto clydoniata Schwartz & Gali and C. chrysaoros Bates as valid species and propose C. clenchi, syn. nov., C. galii galli, syn. nov. and C. galii choneupsilon, syn. nov. as synonyms of C. chrysaoros. Further work must be focused on other species group members to reassess their affinity.
IS16067Where Fossils Dare and Males Matter: combined morphological and molecular analysis untangles the evolutionary history of the spider ant genus Leptomyrmex Mayr (Hymenoptera : Dolichoderinae)
The distinctive ant genus Leptomyrmex Mayr, 1862 had been thought to be endemic to Australasia for over 150 years, but enigmatic Neotropical fossils have challenged this view for decades. Our results highlight the importance of securing sufficient taxon sampling for extant lineages when incorporating fossils and underscore the utility of diverse character sources in accurate placement of fossil terminals. Specifically, we find that fossil placement in this group is influenced by the inclusion of male-based characters and the newly discovered Neotropical ‘Lazarus taxon’.
IS16085Contrasting the population genetic structure of two velvet worm taxa (Onychophora : Peripatopsidae : Peripatopsis) in forest fragments along the south-eastern Cape, South Africa
Velvet worms are a primitive invertebrate group, restricted to forested environments and characterised by limited dispersal. In the present study, the population genetic structure of two velvet worm species was examined. Results demonstrated marked species diversity and genetic structure among forest patches, indicating that forest patches need higher conservation prioritisation.
IS16058The identity of Monomia argentata (Crustacea : Brachyura : Portunidae) resolved by X-ray, computed tomography scanning and molecular comparisons
The taxonomic status and identity of Monomia argentata was confused for long time; previously published studies indicated a presence of its species complex, without resolving the original form. The aim of this study was to examine the type specimen of M. argentata by traditional and modern diagnostic methods, and to clarify its taxonomic position. The type specimen was examined by X-ray and CT-technology, compared with fresh material, and redescribed.
Paper By Paper
The peer-reviewed and edited version of record published online as it becomes available
IS17003Exploring the diversity of Asian Cryptocercus (Blattodea : Cryptocercidae): species delimitation based on chromosome numbers, morphology and molecular analysis
This study is the first attempt to delimit Cryptocercus species on a large scale, including different species delimitation analysis methods. We aim to find the unrecognized diversity of Cryptocercus in the Hengduan Mountains, then we combined our data with biogeography to interpret the rich diversity of Cryptocercus in China. Our results have shed new light on the diversity of Cryptocercus.
IS17028Molecular phylogeny of branchiobdellidans (Annelida : Clitellata) and their host–epibiont association with Austropotamobius freshwater crayfish
Branchiobdellidans are ectosymbiotic annelids associated with freshwater crayfish. Here, we inferred, using mtDNA COI sequences, the phylogenetic relationships of branchiobdellidans from the genus Branchiobdella living on the Austropotamobius crayfish, from Dinaric and Alpine regions of Europe. High intraspecific p-distance values were observed, indicating the existence of cryptic taxa within genus Branchiobdella, while congruent phylogenetic patterns within Austropotamobius and branchiobdellidans indicate similar evolutionary histories and imply their coevolution. Photograph: Branchiobdella parasite, by G. Klobučar.
IS17021The zoogeography of extant rhabdopleurid hemichordates (Pterobranchia : Graptolithina), with a new species from the Mediterranean Sea
Rhabdopleura is a colonial, tubicolous animal with a near half billion-year old fossil record. Here we use morphology and molecules to describe a fifth living species, named R. recondita, that inhabits dead bryozoan skeletons. The habitat of rhabdopleurids, the ability to form buds from cells protected inside of the tubes, and clonal reproduction may have contributed to Rhabdopleura’s longevity.
IS17038Further polyphyly of pinnotheroid crabs: the molecular phylogenetic position of the polychaete-associated Aphanodactylidae
Pea crabs, Pinnotheroidea, being highly specialised to live symbiotically (obligate commensalism) with other marine invertebrates, were long thought to have a common ancestor. Our molecular analysis shows that the lineage symbiotic with medusa worms, Aphanodactylidae, evolved independently of other pea crabs and is more closely related to the free-living ghost and sentinel crabs. This indicates that obligate commensalism has evolved independently at least three times within the crabs.
Until the 1980s ‘cosmopolitan’ species were considered common among polychaetes. We examine how this idea originated and argue that while wide distributions are possible in the deep sea and as a result of bioinvasions, they are rare. We suggest the measures needed to revolve the status of reportedly cosmopolitan species and stress the value of museum vouchers associated with DNA sequences.
IS16071Taxonomic revision and insights into the speciation mode of the spider Dysdera erythrina species-complex (Araneae : Dysderidae): sibling species with sympatric distributions
Sibling species provide insights into the mechanisms involved in speciation. Here, we integrate information from morphology and molecular and chromosome markers to discover and delimit twenty sibling species within the woodlouse hunter spider Dysdera erythrina complex. Our results suggest that the combination of rapid chromosome differentiation and the dietary specialisation stands behind the origin of this remarkable, and so far mostly overlooked, diversity.
These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.
Integrative systematics of clathrinid sponges: morphological, reproductive and phylogenetic characterization of a new species of Leucetta from Antarctica (Porifera, Calcarea, Calcinea) with notes on the occurrence of flagellated sperm
Trigonocephalotrema (Digenea: Haplosplanchnidae), a new genus for trematodes parasitising fishes of two Indo-West Pacific acanthurid genera.
Systematics and host plant associations of the Palassocoris complex (Insecta: Heteroptera: Miridae: Orthotylinae), a monophyletic suprageneric group of long-headed Australian Orthotylini, and the description of five new genera and ten new species
The Pleurobemini (Bivalvia: Unionida) revisited: molecular species delineation using a mitochondrial DNA gene reveals multiple conspecifics and undescribed species
Geographic patterns of phenotypic diversity in incipient species of North American blister beetles (Coleoptera: Meloidae) are not determined by species niches but driven by demography along the speciation process
Integrative taxonomy unravels the species diversity of Parachristianella Dollfus, 1946 (Cestoda: Trypanorhyncha) from both sides of the Panamanian isthmus
Integrative systematic revision of a Mediterranean earthworm family: Hormogastridae (Annelida, Oligochaeta)
Untangling Lepidocyrtus (Collembola, Entomobryidae): new molecular data shed light on the relationships of the European groups.
An integrative taxonomic approach reveals the first marine triclad (Platyhelminthes) trapped in a cave from a semi-arid Neotropical environment
On the genus Spirobranchus (Annelida, Polychaeta, Serpulidae) from the northern Red Sea, and a description of a new species
Instant taxonomy: Choosing adequate characters for species delimitation and description through congruence between molecular data and quantitative shape analysis
Genetic diversity of marine oligochaetous clitellates in selected areas of the South Atlantic as revealed by DNA barcoding
Morphological and molecular systematics of the “Monanchora arbuscula complex” (Poecilosclerida: Crambeidae), with the description of five new species and a biogeographic discussion of the genus in the Tropical Western Atlantic
Looking for morphological evidence of cryptic species in Asterina Nardo, 1834 (Echinodermata: Asteroidea). The redescription of Asterina pancerii (Gasco, 1870) and the description of two new species.
More limbs on the tree: Mitogenome characterization and systematic position of “living fossil” species Neoglyphea inopinata and Laurentaeglyphea neocaledonica (Decapoda: Glypheidea: Glypheidae)
Understanding subterranean variability: the first genus of Bathynellidae (Bathynellacea, Crustacea) from Western Australia described through a morphological and multigene approach
An expanded molecular phylogeny of metaine spiders (Araneae, Tetragnathidae) with descriptions of new metaine and leucaugine taxa from Taiwan and the Philippines.
Morphological phylogeny of the Australian genera of the bee fly subfamily Bombyliinae (Diptera: Bombyliidae) with description of four new genera
Unexpected species diversity within Japanese Mundochthonius pseudoscorpions (Pseudoscorpiones: Chthoniidae) and the necessity for improved species diagnosis revealed by molecular and morphological examination
Phylogenetic relationships and evolution of reproductive modes within flattened syllids (Annelida, Syllidae) with the description of a new genus and six new species
Taxonomy, phylogeny, and phylogeography of the Australasian mangrove crabs Parasesarma semperi and P. longicristatum (Decapoda: Brachyura: Sesarmidae) based on morphological and molecular data
A molecular phylogeny of the crab genus Metopograpsus H. Milne Edwards, 1853 (Decapoda; Brachyura; Grapsidae) reveals high intraspecific genetic variation and distinct evolutionary significant units
Re-interpreting the taxonomy of the genera Atopochetus Attems, 1953, Litostrophus Chamberlin, 1921 and Tonkinbolus Verhoeff, 1938 (Diplopoda: Spirobolida: Pachybolidae), with descriptions of nine new species
TAXONOMY, SYSTEMATICS AND BIOGEOGRAPHY OF SPINOCTENUS, A NEW GENUS OF WANDERING SPIDER FROM COLOMBIA (CTENIDAE)
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Invertebrate Systematics 31 (1)Christian R. Voolstra, GIGA Community of Scientists (COS), Gert Wörheide, Jose V. Lopez
Where Fossils Dare and Males Matter: combined morphological and molecular analysis untangles the evolutionary history of the spider ant genus Leptomyrmex Mayr (Hymenoptera : Dolichoderinae)Invertebrate Systematics 31 (6)Phillip Barden, Brendon Boudinot, Andrea Lucky
Invertebrate Systematics 31 (6)Ivan L. F. Magalhaes, Martín J. Ramírez
Invertebrate Systematics 31 (4)Feng Zhang, Yitong Ma, Penelope Greenslade
The identity of Monomia argentata (Crustacea : Brachyura : Portunidae) resolved by X-ray, computed tomography scanning and molecular comparisonsInvertebrate Systematics 31 (6)Milan Koch, Seyit A. Kamanli, Oliver Crimmen, Chia-Wei Lin, Paul F. Clark, Zden?k ?uriš
Species richness of jellyfishes (Scyphozoa : Discomedusae) in the Tropical Eastern Pacific: missed taxa, molecules, and morphology match in a biodiversity hotspotInvertebrate Systematics 31 (5)Liza Gómez Daglio, Michael N Dawson
A new ant-eating spider genus Suffascar (Araneae:Zodariidae) endemic to Madagascar: a considerable extension of the dual femoral organ cladeInvertebrate Systematics 31 (5)Arnaud Henrard, Rudy Jocqué
A spectacular new genus of Staphylinini rove beetle from the tropical Andes and its phylogenetic assessment (Coleoptera : Staphylinidae)Invertebrate Systematics 31 (6)Josh Jenkins Shaw, Dagmara Żyła, Alexey Solodovnikov
Invertebrate Systematics 32 (1)Pat Hutchings, Elena Kupriyanova
Contrasting the population genetic structure of two velvet worm taxa (Onychophora : Peripatopsidae : Peripatopsis) in forest fragments along the south-eastern Cape, South AfricaInvertebrate Systematics 31 (6)Savel R. Daniels, Megan Dreyer, Prashant P. Sharma
Molecular and morphological evidence for a new genus of small trapdoor spiders from arid Western Australia (Araneae : Mygalomorphae : Nemesiidae : Anaminae)Invertebrate Systematics 31 (4)Mark A. Castalanelli, Joel A. Huey, Mia J. Hillyer, Mark S. Harvey
Exploring the role of within-island ecogeographical factors: insights from the genetic diversity of Cretan trap-door spiders (Cyrtocarenum cunicularium, Ctenizidae : Araneae)Invertebrate Systematics 31 (4)Evanthia Thanou, Panagiotis Kornilios, Dimitris Poursanidis, Aristeidis Parmakelis, Miquel A. Arnedo, Maria Chatzaki
Astrocoryne cabela, gen. nov. et sp. nov. (Hydrozoa : Sphaerocorynidae), a new sponge-associated hydrozoanInvertebrate Systematics 31 (6)Davide Maggioni, Paolo Galli, Michael L. Berumen, Roberto Arrigoni, Davide Seveso, Simone Montano
Mitochondrial and chemical profiles reveal a new genus and species of Neotropical termite with snapping soldiers, Palmitermes impostor (Termitidae : Termitinae)Invertebrate Systematics 31 (4)Simon Hellemans, Thomas Bourguignon, Pavlína Kyjaková, Robert Hanus, Yves Roisin
Taxonomic revision and insights into the speciation mode of the spider Dysdera erythrina species-complex (Araneae : Dysderidae): sibling species with sympatric distributionsInvertebrate Systematics 32 (1)Milan Řezáč, Miquel A. Arnedo, Vera Opatova, Jana Musilová, Veronika Řezáčová, Jiří Král
Hedera caerulescens (Alcyonacea : Alcyoniidae), a new genus and species of soft coral from the temperate North Atlantic: invasive in its known range?Invertebrate Systematics 31 (6)I. E. Conti-Jerpe, D. W. Freshwater
The Australasian spiny trapdoor spiders of the family Idiopidae (Mygalomorphae : Arbanitinae): a relimitation and revision at the generic levelInvertebrate Systematics 31 (5)Michael G. Rix, Robert J. Raven, Barbara Y. Main, Sophie E. Harrison, Andrew D. Austin, Steven J. B. Cooper, Mark S. Harvey
The systematics and biogeography of the mite harvestman family Sironidae (Arachnida : Opiliones : Cyphophthalmi) with the description of five new speciesInvertebrate Systematics 31 (4)Gonzalo Giribet, Ligia R. Benavides, Izaskun Merino-Sáinz
Exploring the diversity of Asian Cryptocercus (Blattodea : Cryptocercidae): species delimitation based on chromosome numbers, morphology and molecular analysisInvertebrate Systematics 32 (1)Qikun Bai, Lili Wang, Zongqing Wang, Nathan Lo, Yanli Che
Further polyphyly of pinnotheroid crabs: the molecular phylogenetic position of the polychaete-associated AphanodactylidaeInvertebrate Systematics 32 (1)Ling Ming Tsang, Shane T. Ahyong, Hsi-Te Shih, Peter K. L. Ng