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In the vast abyssal plains northwest of Iceland, white glass sponges of the genus Caulophacus Schulze, 1886 were inhabited by reddish Bythocaris G.O. Sars, 1870 shrimps and pinkish amphipods. After in situ observations at 3700 m depth, in -1°C waters by a remotely operated vehicle, members of this assemblage were collected and preserved for molecular studies. Based on integrative taxonomic analyses, the amphipods were identified as a new species of the genus Halirages Boeck, 1871 – Halirages spongiae sp. nov. Lörz, Nack & Tandberg –, as described in detail below. Part of our integrative approach was to establish reference DNA barcodes for known species of Halirages. However, our investigation of material of Calliopiidae G.O. Sars, 1895 collected around Iceland and Norway revealed slight morphological discrepancies in all the described species of Halirages. Except for Halirages fulvocinctus (M. Sars, 1858), none of the encountered specimens of Calliopiidae fully matched a current species description. We illuminate the morphological characteristics of nine operational taxonomic units, which also represented clades in COI and 28S. We set the Icelandic samples in the context of Halirages from Canada and Norway. A key to the world species of Halirages is provided.
A new genus, Janzena (Erebidae), and 37 new species of Noctuoidea (Lepidoptera) are described from Florida as well as two species elevated from synonymy to species status. Bleptina biformata, Bleptina extincta, Bleptina flavivena, Bleptina verticalis, Lascoria coma, Janzena pyraliformis, Sigela sordes, Sigela minuta,Sigela incisa, Sigela subincisa, Sigela rosea, Sigela lynx, Dyspyralis ocala, Metalectra nigrior, Metalectra dixoni, Melipotis florida, Doryodes acta, Doryodes unica, Doryodes fulva, Toxonprucha killamae, Zale lafontainei,Zale vargoi, Zale clandestina, Athyrma fakahatchee, Antiblemma perva, Antiblemma carolae, Paectes hercules,Meganola georgei, Litoprosopus linea, Tripudia calusa, Catabenoides insularis, Neogalea caracara, Condica collaris, Homophoberia australis, Diastema leo, Pyreferra slotteni, and Leucania elephas are described as new. Hemeroplanis floccalis (Zeller), revived status, is raised to species status from the synonymy of Hemeroplanis scopulepes (Haworth),and Euscirrhopterus argentata (Druce), revived status, is raised to species status from the synonymy of Euscirrhopterus poeyi Grote. The genus Araeopteron Hampson is restricted to the Old World and Araeopteron vilhelmina (Dyar) is transferred to the genus Sigela Hulst, new combination. The barcode index number (BIN) is provided for each species, when available.
We describe a new troglophilic species of Filistata, F. betarif sp. nov. , collected from two caves in central Israel, by using light and electron microscopy and by DNA barcoding of the cytochrome c oxidase subunit I (COI) gene. Sequences of this gene show more than 15% of divergence between the new species and its sibling, F. insidiatrix (Forsskål, 1775), which is widely distributed across the Mediterranean and the Middle East. Notwithstanding, the two species are diagnosed only by a minor morphological detail in the embolic keel of the male pedipalp; females of both species are not diagnosable based only on morphology. We also find that samples of F. insidiatrix from different localities have large genetic divergence values (larger than 15% in some cases), but their pedipalps are identical in males; this suggests that F. insidiatrix might hide an additional cryptic diversity. We take this opportunity to provide a dichotomous key for identifying the crevice-weavers (Filistatidae) of Israel and Palestine.
The genus Onychelmis Hinton, 1941 was for a long time regarded as a small taxon with only three known species distributed in the Andes. A study of new material from Ecuador, using morphological and molecular data, has resulted in the discovery of five new species: Onychelmis lenkae sp. nov., O. lobata sp. nov., O. minor sp. nov., O. onorei sp. nov. and O. splendida sp. nov. We also revised the entire genus and redescribed the three known species, O. longicollis (Sharp, 1882), O. leleupi Delève, 1968 and O. whiteheadi Spangler & Santiago, 1991. Habitus photographs of adults are provided, together with line drawings of male and female genitalia, and schematic illustrations of the distribution of femoral tomentum for each species. DNA sequences for barcoding the COI mtDNA fragment were used to support species delimitation and to suggest possible relationships among species. The revision includes a key to adults of all species of Onychelmis and notes on the biogeography of the genus, with an updated distribution map.
Arcola malloi (Pastrana, 1961) is a junior subjective synonym of Macrorrhinia endonephele (Hampson, 1918) syn. nov. (Lepidoptera: Pyralidae). The species is a biological control agent introduced in United States and Australia to control alligatorweed, Alternanthera philoxeroides (Mart.) Griseb. (Amaranthaceae). The synonymy is recognized by comparison of type specimens, genitalic dissections, and DNA COI barcoding. Vogtia Pastrana, 1961 syn. nov. and Arcola Shaffer, 1995 syn. nov. are synonymized with Macrorrhinia Ragonot, 1887. Macror-rhinia megajuxta (Neunzig and Goodson, 1992) comb. nov. is transferred from Ocala Hulst, 1892. Lectotypes are designated for Divitiaca ochrella Barnes and McDunnough, 1913, and Divitiaca simulella Barnes and Mc-Dunnough, 1913.
We recognize and review 40 species of Chlamydastis Meyrick, 1916 (Lepidoptera: Depressariidae) from Costa Rica, including four previously described (i.e., C. vividella (Busck, 1914), revived status; C. phytoptera (Busck, 1914); C. orion Busck, 1920; and C. ungulifera (Meyrick, 1929)) and 36 new species: C. abelulatei Phillips and Brown, new species; C. carolinagodoyae Phillips and Brown, new species; C. angelsolisi Phillips and Brown, new species; C. lindapitkinae Phillips and Brown, new species; C. iangauldi Phillips and Brown, new species; C. anniapicadoae Phillips and Brown, new species; C. antonioazofeifai Phillips and Brown, new species; C. mignondavisae Phillips and Brown, new species; C. marianofigueresi Phillips and Brown, new species; C. colleenhitchcockae Phillips and Brown, new species; C. bernardoespinozai Phillips and Brown, new species; C. bobandersoni Phillips and Brown, new species; C. carlosviquezi Phillips and Brown, new species; C. christerhanssoni Phillips and Brown, new species; C. christhompsoni Phillips and Brown, new species; C. paulhansoni Phillips and Brown, new species; C. elenaulateae Phillips and Brown, new species; C. gladysrojasae Phillips and Brown, new species; C. powelli Phillips and Brown, new species; C. gracewoodae Phillips and Brown, new species; C. juanmatai Phillips and Brown, new species; C. isidrochaconi Phillips and Brown, new species; C. jimlewisi Phillips and Brown, new species; C. jimmilleri Phillips and Brown, new species; C. montywoodi Phillips and Brown, new species; C. johnnoyesi Phillips and Brown, new species; C. luisdiegogomezi Phillips and Brown, new species; C. paulthiaucourti Phillips and Brown, new species; C. dondavisi Phillips and Brown, new species; C. irenecanasae Phillips and Brown, new species; C. manuelzumbadoi Phillips and Brown, new species; C. noramartinae Phillips and Brown, new species; C. vitorbeckeri Phillips and Brown, new species; C. ronaldzunigai Phillips and Brown, new species; C. munifigueresae Phillips and Brown, new species; and C. willsflowersi Phillips and Brown, new species.COI nucleotide sequences (“DNA barcodes”) were obtained for 33 of the species, which helped associate males with females for sexually dimorphic species and revealed a few cryptic, presumably evolutionary siblings. We illustrate adults of all species, along with their male and female genitalia, where available.Nineteen species were reared from caterpillars, and their foodplants are listed. In Costa Rica, 15 species of Chlamydastis are recorded exclusively from Sapotaceae; one species each exclusively from Clethraceae, Vochysiaceae, Combretaceae, and Melastomataceae. Larvae are illustrated for 10 of the 36 new species, and superficial larval descriptions are provided based on photographs and notes. Of the 40 species of Chlamydastis reported from Costa Rica, 32 have been light-collected or reared from Área de Conservación Guanacaste.
BACKGROUND: Current biodiversity patterns are considered largely the result of past climatic and tectonic changes. In an integrative approach, we combine taxonomic and phylogenetic hypotheses to analyze temporal and geographic diversification of epigean (Carychium) and subterranean (Zospeum) evolutionary lineages in Carychiidae (Eupulmonata, Ellobioidea). We explicitly test three hypotheses: 1) morphospecies encompass unrecognized evolutionary lineages, 2) limited dispersal results in a close genetic relationship of geographical proximally distributed taxa and 3) major climatic and tectonic events had an impact on lineage diversification within Carychiidae.
RESULTS: Initial morphospecies assignments were investigated by different molecular delimitation approaches (threshold, ABGD, GMYC and SP). Despite a conservative delimitation strategy, carychiid morphospecies comprise a great number of unrecognized evolutionary lineages. We attribute this phenomenon to historic underestimation of morphological stasis and phenotypic variability amongst lineages. The first molecular phylogenetic hypothesis for the Carychiidae (based on COI, 16S and H3) reveals Carychium and Zospeum to be reciprocally monophyletic. Geographical proximally distributed lineages are often closely related. The temporal diversification of Carychiidae is best described by a constant rate model of diversification. The evolution of Carychiidae is characterized by relatively few (long distance) colonization events. We find support for an Asian origin of Carychium. Zospeum may have arrived in Europe before extant members of Carychium. Distantly related Carychium clades inhabit a wide spectrum of the available bioclimatic niche and demonstrate considerable niche overlap.
CONCLUSIONS: Carychiid taxonomy is in dire need of revision. An inferred wide distribution and variable phenotype suggest underestimated diversity in Zospeum. Several Carychium morphospecies are results of past taxonomic lumping. By collecting populations at their type locality, molecular investigations are able to link historic morphospecies assignments to their respective evolutionary lineage. We propose that rare founder populations initially colonized a continent or cave system. Subsequent passive dispersal into adjacent areas led to in situ pan-continental or mountain range diversifications. Major environmental changes did not influence carychiid diversification. However, certain molecular delimitation methods indicated a recent decrease in diversification rate. We attribute this decrease to protracted speciation.
With six valid species, Luciobrotula is a small genus of the family Ophidiidae, commonly known as cusk-eels. They are benthopelagic fishes occurring at depths ranging from 115–2300 m in the Atlantic, Indian, and Pacific Oceans. Among them, Luciobrotula bartschi is the only known species in the West Pacific. Three specimens of Luciobrotula were collected from the Philippine Sea, Bismarck Sea, and Solomon Sea in the West Pacific during the AURORA, PAPUA NIUGINI, and MADEEP expeditions under the Tropical Deep-Sea Benthos program, and all of them were initially identified as L. bartschi. Subsequent examination with integrative taxonomy indicates that they belong to two distinct species, with the specimen collected from the Solomon Sea representing a new species, which is described here. In terms of morphology, Luciobrotula polylepis sp. nov. differs from its congeners by having a relatively longer lateral line (end of the lateral line below the 33rd dorsal-fin ray) and fewer vertebrae (abdominal vertebrae 13, total vertebrae 50). In the inferred COI gene tree, the two western Pacific species of Luciobrotula do not form a monophyletic group. The genetic K2P distance between the two species is 13.8% on average at the COI locus.
Two new species, Hyphessobrycon frickei Guimarães, Brito, Bragança, Katz & Ottoni sp. nov. and H. geryi Guimarães, Brito, Bragança, Katz & Ottoni sp. nov., are herein described, based on seven different and independent species delimitation methods, and on molecular and morphological characters, making the hypothesis of these new species supported from an integrative taxonomy perspective. They belong to the “Rosy tetra” clade, which is mainly characterized by the presence of a dark brown or black blotch on the dorsal fin and the absence of a midlateral stripe on the body. These two new species are distinguished from the other members of this clade mainly by the arrangement, shape and color pattern of humeral and dorsal-fin spots, as well as by other characters related to scale counts and body pigmentation. The placement of the new species within the “Rosy tetra” clade was based on the combination of morphological character states mentioned above and corroborated by a molecular phylogenetic analysis using the mitochondrial gene cytochrome oxidase subunit 1. In addition, a new clade (here termed Hyphessobrycon copelandi clade) within the “Rosy tetra” clade is proposed based on molecular data, comprising H. copelandi, H. frickei sp. nov., H. geryi sp. nov. and a still undescribed species. Our results corroborate the occurrence of hidden species within the “Rosy tetra” clade, as suggested by previous studies.