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Three new species of the bamboo-feeding genus Bambusiphaga Huang & Ding, 1979, B. parvula sp. nov., B. angulosa sp. nov., and B. nigrigena sp. nov., are described and illustrated from China. A key to species of the genus is provided. Habitus photos for adults and illustrations of male genitalia are also given.
The American species of Cosmetidae, in spite of being clearly distinguished in the older literature, were mixed-up by Roewer. This, aggravated by groundless synonymies done by Goodnight & Goodnight, prevented all subsequent authors from properly recognizing and adequately naming those species. Herein, we define and characterize the three most widespread species of Cosmetidae in the USA, explaining the misleading synonymies and misidentifications in the taxonomic literature. A recent phylogenetic analysis revalidated Libitioides Roewer, 1912 from the synonymy of Vonones Simon, 1879 to include three American species: Gonyleptes ornatum Say, 1821 (from southeastern USA), Cynorta sayi Simon, 1879 (from central-southern USA) and Cosmetus albolineatus Sørensen, 1884 (from eastern USA). Expanding on that, we herein aggregate another two species to Libitioides: Vonones modestus Banks, 1909 (from Cuba, herein revalidated from the synonymy of Libitioides ornata Roewer, 1912) and Libitioides scabrissima Roewer, 1912 (from Mexico, restored from the current combination with Vonones). The following subjective synonymies are proposed: (1) Platycynorta Mello-Leitão, 1933 and Denticynorta Roewer, 1947 = Libitioides; (2) Metacynorta denticus Walker, 1928 = Cosmetus albolineatus; (3) Platycynorta secunda Roewer, 1947 = Vonones modestus; (4) Libitioides ornata Roewer, 1912 and Cynorta (Cynorta) depressa Sørensen, 1932 = Cynorta sayi. Outside Libitioides, Cynorta bimaculata Banks, 1893, currently combined under Calicynorta Goodnight & Goodnight, 1943, and originally reported from California (due to a misinterpretation of label) has its type locality corrected as to be in Costa Rica instead and is transferred to Holovonones Roewer, 1912. Accordingly, Calicynorta is herein considered a junior subjective synonym of Holovonones Roewer, 1912. Platycynorta clavifemur Roewer, 1957 from Peru is newly combined under the genus Ambatoiella Mello-Leitão, 1943, otherwise known from Ecuador. The present analysis of the distributional data suggests that the occurrence of Cosmetidae is determined not directly by temperature, but by the absence of a dry season and the presence of a hot summer.
A new species of Laubierpholoe Pettibone, 1992 (Annelida, Sigalionidae), Laubierpholoe massiliana Zhadan sp. nov., was found in two submarine caves near Marseille (France). This is the first record of the genus in the Mediterranean Sea. The new species differs from congeners by inhabiting soft sediments instead of having an interstitial lifestyle and by several morphological characters: the ventral tentacular cirri slightly shorter or of similar length to the dorsal tentacular cirri, the presence of bidentate neurochaetae, the body length, and the number of segments. Molecular phylogenetic analysis using 18S rRNA and 28S rRNA sequences confirmed that the new species belongs to the genus Laubierpholoe, as well as the monophyly of the genus. The ecology of the new species and its adaptation to the cave-dwelling lifestyle are discussed. An identification key for all known species of Laubierpholoe is provided.
Taxonomic history and review of the Förster genera of Platygastridae (Hymenoptera: Platygastroidea)
(2023)
Platygastridae is a ʻdark taxonʼ, with many genera and species in dire need of professional attention. The taxonomic impediment is especially severe in the Palearctic Platygastrinae due to the abundance of names with vague concepts. Historical descriptions and their associated type material must be examined and clarified before further revisionary work can occur. Arnold Förster described 18 genera of Platygastridae, most of which represent distinct and recognizable lineages. The present study reviews their taxonomic history, providing diagnostic remarks, English translations, and illustrations of important specimens from the Förster collection in the Natural History Museum Vienna. The collection also includes original exemplar specimens of European species whose types have been lost. Neotypes and lectotypes are designated from this material to improve nomenclatural stability in the group. Neotypes are designated for Amblyaspis forticornis (Nees, 1834), Isocybus grandis (Nees, 1834), Platygaster striolata Nees, 1834, and Trichacis tristis (Nees, 1834). Lectotypes are designated for Leptacis spinigera (Nees, 1834) comb. nov. and for Platygaster corvina Förster, 1861, with Platygaster henkvlugi Buhl, 1996 treated as a junior synonym. Platygaster mutica Nees, 1834 stat. rev., nomen dubium, is transferred from Synopeas.
Family Corethrellidae has a worldwide distribution with most known extant species occurring in the Neotropics, many with only the adult stages described. Despite previous efforts, one remaining problem in the taxonomy of Corethrellidae is the challenge of delimiting species due to the current range of morphological characters included in descriptions to date. This paper discusses additional morphological evidence to distinguish species and their phylogenetic relationships. Together with fresh samples collected in Bahia, the only state in the Northeast Region with records of corethrellids, and slide-mounted specimens from other regions, five new species are described: Corethrella pindorama sp. nov., C. patasho sp. nov., C. fuscifimbria sp. nov. and C. unifasciata sp. nov. based on female adults; and C. bifida sp. nov. based on male and female adults, and larval and pupal exuviae. We also provide complementary descriptions comprising the novel characters for 33 previously described species, including the immature stages of nine. Fifteen species are newly recorded for Bahia and the Northeast Region, of which two are new records for Brazil. Additionally, we provide remarks about the biology of species, an updated list of species recorded in Brazil and an updated taxonomic key of New World species, modified from Borkent (2008).
Enicospilus Stephens, 1835 is the largest genus of subfamily Ophioninae (Ichneumonidae) with more than 700 extant species worldwide that are mostly nocturnal and parasitoids of larvae of Lepidoptera. In this paper, the Vietnamese species of Enicospilus are reviewed for the first time. Of the total 82 recorded species, 10 species are described as new: E. aequiscleritalis sp. nov., E. bulbipennis sp. nov., E. centraliscleritiger sp. nov., E. circuliscleritalis sp. nov., E. gialaiensis sp. nov., E. hiepi sp. nov., E. melanothoracicus sp. nov., E. nigristernalis sp. nov., E. trui sp. nov., and E. tuani sp. nov. Fifty-two species are recorded for the first time from the country: E. abdominalis (Szépligeti, 1906), E. acutus Shimizu, 2020, E. argus Gauld & Mitchell, 1981, E. atoponeus Cushman, 1947, E. bacillaris Wang, 1997, E. bakerielli Gauld & Mitchell, 1981, E. bifasciatus (Uchida, 1928), E. biharensis Townes, Townes & Gupta, 1961, E. concentralis Cushman, 1937, E. corculus (Tosquinet, 1903), E. dasychirae Cameron, 1905, E. eastopi Gauld & Mitchell, 1981, E. enicospilus Nikam, 1972, E. exaggeratus Chiu, 1954, E. fittoni Nikam, 1980, E. flavocephalus (Kirby, 1900), E. formosensis (Uchida, 1928), E. fusiformis Chiu, 1954, E. gasteralis Nikam, 1980, E. grandis (Cameron, 1905), E. hamatus Gauld & Mitchell, 1981, E. hedilis Gauld & Mitchell, 1981, E. iapetus Gauld & Mitchell, 1981, E. insinuator (Smith, 1860), E. ixion Gauld & Mitchell, 1981, E. javanus (Szépligeti, 1910), E. laqueatus (Enderlein, 1921), E. longitarsis Tang, 1990, E. mythrus Gauld & Mitchell, 1981, E. nathani Gauld & Mitchell, 1981, E. nigribasalis (Uchida, 1928), E. nigristigma Cushman, 1937, E. nigriventris Nikam, 1975, E. nigronotatus Cameron, 1903, E. nigropectus Cameron, 1905, E. pallidistigma Cushman, 1937, E. pantanae Tang, 1990, E. pinguivena (Enderlein, 1921), E. pseudoconspersae (Sonan, 1927), E. purifenestratus (Enderlein, 1921), E. rhetus Gauld & Mitchell, 1981, E. riukiuensis (Matsumura & Uchida, 1926), E. sauteri (Enderlein, 1921), E. selmatos Chiu, 1954, E. strigilatus Tang, 1990, E. teleus Gauld & Mitchell, 1981, E. transversus Chiu, 1954, E. tripartitus Chiu, 1954, E. urus Gauld & Mitchell, 1981, E. verticinus (Roman, 1913), E. yonezawanus (Uchida, 1928), and E. zebrus Gauld & Mitchell, 1981. A key to all Vietnamese species of Enicospilus is provided.
The species of Aphaniosoma Becker, 1903 described from Egypt by Collin in 1949 are reviewed and lectotypes designated for Aphaniosoma creperum Collin, 1949, A. fissum Collin, 1949, A. lamellatum Collin, 1949 and A. sodalis Collin, 1949. All species known from the eastern Mediterranean and the Middle East are reviewed, with annotations, distributions and a key to species. The following 19 species are described as new and illustrated: A. acitergum sp. nov., A. aegyptium sp. nov., A. angulitergum sp. nov., A. captiosum sp. nov., A. cristatum sp. nov., A. curvistylus sp. nov., A. daedalum sp. nov., A. denticulosum sp. nov., A. flavipyga sp. nov., A. freidbergi sp. nov., A. interispina sp. nov., A. kravchenkoi sp. nov., A. longilingua sp. nov., A. lucidum sp. nov., A. meltseri sp. nov., A. miricercus sp. nov., A. palestinense sp. nov., A. praeditum sp. nov. and A. yaromi sp. nov. Biology and ecology are commented upon.
Molluscs are the second most species-rich phylum in the animal kingdom, yet only 11 genomes of this group have been published so far. Here, we present the draft genome sequence of the pulmonate freshwater snail Radix auricularia. Six whole genome shotgun libraries with different layouts were sequenced. The resulting assembly comprises 4,823 scaffolds with a cumulative length of 910 Mb and an overall read coverage of 72×. The assembly contains 94.6% of a metazoan core gene collection, indicating an almost complete coverage of the coding fraction. The discrepancy of ∼690 Mb compared with the estimated genome size of R. auricularia (1.6 Gb) results from a high repeat content of 70% mainly comprising DNA transposons. The annotation of 17,338 protein coding genes was supported by the use of publicly available transcriptome data. This draft will serve as starting point for further genomic and population genetic research in this scientifically important phylum.
An extensive survey of Linyphiidae spiders from Wulipo National Nature Reserve (NNR), Chongqing has been conducted, in which 24 species belonging to 16 genera are recorded including two new genera and eight new species described here as: Agyneta Hull, 1911, A. orthogonia sp. nov. (♂♀); Dicristatus gen. nov., D. minutus gen. et sp. nov. (♂♀); Dicymbium Menge, 1868, D. pingqianense sp. nov. (♂♀); Himalaphantes Tanasevitch, 1992, H. azumiensis (Oi, 1979) (♂♀); Indophantes Saaristo & Tanasevitch, 2003, I. wushanensis sp. nov. (♂♀); Ketambea Millidge & Russell-Smith, 1992, K. nigripectoris (Oi, 1960) (♂♀); Molestia Tu, Saaristo & Li, 2006, M. pollicaris sp. nov. (♂♀); Neriene Blackwall, 1833, N. calozonata Chen & Zhu, 1989 (♀), N. cavaleriei (Schenkel, 1963) (♂♀), N. emphana (Walckenaer, 1841) (♂♀), N. japonica (Oi, 1960) (♂♀), N. limbatinella (Bösenberg & Strand, 1906) (♀), N. longipedella (Bösenberg & Strand, 1906) (♂♀), N. oidedicata van Helsdingen, 1969 (♀); Prosoponoides Millidge & Russell-Smith, 1992, P. sinense (Chen, 1991) (♂♀); Ryojius Saito & Ono, 2001, R. simplex sp. nov. (♂♀); Stemonyphantes Menge, 1866, S. bifurcus sp. nov. (♂); Syedra Simon, 1884, S. oii Saito, 1983; Tapinopa Westring, 1851, T. guttata Komatsu, 1937 (♀); Tenuiphantes Saaristo & Tanasevitch, 1996, T. ancatus (Zhu, Li & Sha, 1986) (♂♀); Walckenaeria Blackwall, 1833, Walckenaeria asymmetrica Song & Li, 2011 (♂♀); Wuliphantes gen. nov., W. guanshan (Irfan, Wang & Zhang, 2022) gen. et comb. nov. (♂♀), W. tongluensis (Chen & Song, 1988) gen. et comb. nov. (♂♀), W. trigyrus gen. et sp. nov. (♂♀). Male of Tenuiphantes ancatus (Zhu, Li & Sha, 1986) is described here for the first time as new to science. The taxonomic status of Bathyphantes guanshan Irfan, Wang & Zhang, 2022 and Bathyphantes tongluensis (Chen & Song, 1988) is revised and proposed here as: Wuliphantes tongluensis (Chen& Song, 1988) gen. et comb. nov. (♂♀) and Wuliphantes guanshan (Irfan, Wang & Zhang, 2022) gen. et comb. nov. (♂♀), respectively. Morphological descriptions, photos of body and copulatory organs, as well as the locality map are provided.
Bujurquina is the most widely distributed and species-rich genus of cichlids in the western Amazon of South America. In this study we describe a new species from Peru from a hypothesized reverse flowing river system. Prior to the origin of the modern Amazon River at 4.5 Ma, this river system had its headwaters on the Iquitos arch, one of several main structural arches (swells) in the Amazon. Prior to the origin of the modern Amazon these arches formed topographic barriers of drainage basins in lowland Amazonia. For our analyses we use morphological and molecular data, analyzed through multivariate statistics and molecular phylogenies, respectivelly. For all valid species in the genus (except B. cordemadi and B. pardus) we additionally for the first time provide photographs of live specimens. Based on DNA phylogeny and coloration patterns we demonstrate that Bujurquina is divided into two main clades and based on this we provide a dichotomous key for all the species.
One of the major problems in evolutionary biology is to elucidate the relationships between historical events and the tempo and mode of lineage divergence. The development of relaxed molecular clock models and the increasing availability of DNA sequences resulted in more accurate estimations of taxa divergence times. However, finding the link between competing historical events and divergence is still challenging. Here we investigate assigning constrained-age priors to nodes of interest in a time-calibrated phylogeny as a means of hypothesis comparison. These priors are equivalent to historic scenarios for lineage origin. The hypothesis that best explains the data can be selected by comparing the likelihood values of the competing hypotheses, modelled with different priors. A simulation approach was taken to evaluate the performance of the prior-based method and to compare it with an unconstrained approach. We explored the effect of DNA sequence length and the temporal placement and span of competing hypotheses (i.e. historic scenarios) on selection of the correct hypothesis and the strength of the inference. Competing hypotheses were compared applying a posterior simulation analogue of the Akaike Information Criterion and Bayes factors (obtained after calculation of the marginal likelihood with three estimators: Harmonic Mean, Stepping Stone and Path Sampling). We illustrate the potential application of the prior-based method on an empirical data set to compare competing geological hypotheses explaining the biogeographic patterns in Pleurodeles newts. The correct hypothesis was selected on average 89% times. The best performance was observed with DNA sequence length of 3500-10000 bp. The prior-based method is most reliable when the hypotheses compared are not temporally too close. The strongest inferences were obtained when using the Stepping Stone and Path Sampling estimators. The prior-based approach proved effective in discriminating between competing hypotheses when used on empirical data. The unconstrained analyses performed well but it probably requires additional computational effort. Researchers applying this approach should rely only on inferences with moderate to strong support. The prior-based approach could be applied on biogeographical and phylogeographical studies where robust methods for historical inferences are still lacking.
Buchbesprechungen
(2023)
Campanula cervicaria steht in Hessen kurz vor dem Aussterben und wurde im Rahmen des Kooperationsvertrages zwischen der Botanischen Vereinigung für Naturschutz in Hessen (BVNH) und dem Land Hessen untersucht. Das Ziel der Untersuchung war, herauszufinden wo Campanula cervicaria in Hessen noch vorkommt und wie groß die Populationen sind. In Hessen sind aktuell noch 20 Populationen vorhanden. Fast 90 % der Populationen befinden sich in der Umgebung von Lißberg, Hirzenhain und Gedern im Westlichen Unteren Vogelsberg. Zwei weitere liegen bei Jossa im Spessart und bei Ober-Gleen im Nördlichen Vogelsberg-Vorland. Die größte Population befindet sich an der Kreisstraße 216 bei Hirzenhain am Forsthaus Luisenlust. Campanula cervicaria wächst in Hessen an sonnenexponierten Wegböschungen und Windwurfflächen, meist zusammen mit Hypericum hirsutum und Brachypodium sylvaticum. Um auch zukünftig die Bestände von Campanula cervicaria zu sichern, müsste ein Artenhilfskonzept erarbeitet werden.
Betrachtet man die Anzahl der in Hessen ausgestorbenen Pflanzenarten über den gesamten Zeitraum ab Beginn der floristischen Erforschung, so scheint ein Zusammenhang zwischen der geringeren Anzahl ausgestorbener Arten in den letzten Dekaden und den gleichzeitig vermehrt ausgewiesenen Naturschutzgebieten zu bestehen. Es stellt sich daher die Frage, ob es auch einen kausalen Zusammenhang gibt, oder ob andere Faktoren einen Einfluss auf das Ausmaß an ausgestorbenen Pflanzenarten haben. Für die Entwicklung der Aussterberate in den kommenden Jahrzehnten wird es nötig werden, alle Vorkommen der derzeit vom Aussterben bedrohten Pflanzenarten dahingehend zu überprüfen, ob ihr Bestand gesichert und erhalten werden kann. So kann dann die Frage beantwortet werden, ob es gelungen ist, das Aussterben von Pflanzenarten in Hessen zu stoppen oder lediglich zu verlangsamen.
Im Rahmen des von der KfW Stiftung geförderten Artenschutzprojektes „Erhaltungskulturen von bedrohten Pflanzen in Hessen“ wurden in den Jahren 2014–2018 von 15 gefährdeten Pflanzenarten in verschiedenen Regionen Hessens Samen gesammelt und im Botanischen Garten der Stadt Frankfurt am Main vermehrt. In Zusammenarbeit mit Naturschutzbehörden, Forstämtern und Naturschutzverbänden wurden dokumentierte Wiederansiedlungsmaßnahmen oder Populationsstärkungen durchgeführt. Überzähliges Saatgut wurde im Botanischen Garten eingefroren und kann für zukünftige Artenschutzprojekte verwendet werden. Bei den 15 gefährdeten Arten handelt es sich um Allium strictum, Festuca albensis, Fumana procumbens, Iris spuria, Jurinea cyanoides, Mibora minima, Moenchia erecta, Nigella arvensis, Poa badensis, Scleranthus verticillatus, Sedum villosum, Spergula pentandra, Ventenata dubia, Veronica acinifolia und Vicia orobus. Alle diese Arten sind als Verantwortungsarten Bestandteil der hessischen Biodiversitätsstrategie. Im Jahr 2021, also drei Jahre nach dem Ende des Projektes, ergab eine Erfolgskontrolle folgendes Ergebnis: Von insgesamt 50 Wiederansiedlungsversuchen an 34 Orten sind immerhin 25 (50 %) erfolgreich. Weitere 5 (10 %) sind möglicherweise ebenfalls gelungen, jedoch sind die neu begründeten Populationen sehr klein. Eindeutig misslungen sind 20 (40 %). Die Gründe für das Misslingen sind meist klar erkennbar und werden thematisiert: Manchmal war der Zielort ungünstig gewählt, oder die verwendete Ansiedlungsmethode erwies sich als ungeeignet. Das Projekt konnte dazu beitragen, unser Wissen über Ökologie und Verbreitung sowie Gefährdung und Schutzbedarf dieser Verantwortungsarten teils erheblich zu vermehren. Damit leistet es auch einen Beitrag zum Schutz der bereits bestehenden Altpopulationen.
In diesem Artikel und weiteren geplanten Folgen werden Ergänzungen, Nachträge, Erläuterungen und Korrekturen sowohl zum von der Taunusflora (Wittig & al. 2022) erfassten Gebiet (Vortaunus, Hoher Taunus, kammnaher Hintertaunus) als auch zum bisher nicht bearbeiteten kammfernen Bereich des Hintertaunus publiziert. Bei den bisherigen Ergänzungen und Nachträgen handelt es sich um die Ergebnisse der Nachbestimmung eines Belegs (Allium christophii), den Fund einer für das Gebiet bisher nicht genannten Art (Hylotelephium vulgare) sowie um Hinweise auf ältere Funde (Bolboschoenus maritimus, Polystichum lonchitis) und einen neueren Fund (Luronium natans). Weiterhin werden die wichtigsten Ergebnisse der Begehungen sechs kammferner Rasterfelder präsentiert (Rote-Liste- und sonstige seltene Arten). Als selten werden diejenigen Arten angesehen, die im bisherigen Kartierungsgebiet in maximal 5 % (= 26) der insgesamt 523 Rasterfelder gefunden wurden. Außerdem werden in der Taunusflora enthaltene Fehler korrigiert.
Vergesellschaftung von Salzpflanzen an Straßenrändern unter besonderer Berücksichtigung des Taunus
(2023)
Im Taunus wurden an Straßen bisher fünf Arten festgestellt, die allgemein als Charakterarten der mitteleuropäischen Salzvegetation gelten und daher als Salzpflanzen im engeren Sinne bezeichnet werden können: Cochlearia danica, Plantago coronopus, Puccinellia distans, Spergularia marina und Trifolium fragiferum. Mit Ausnahme der Vorkommen von Trifolium fragiferum handelt es sich dabei oft um nur wenige weitere Arten enthaltende Dominanzbestände, wobei Trittpflanzen am häufigsten vertreten sind, so dass Straßenrandvegetation mit Puccinellia distans in der vorliegenden Literatur allgemein den Trittpflanzengesellschaften zugeordnet wurde (Plantaginetea majoris beziehungsweise Polygono-Poetea annuae). Entsprechendes gilt auch für viele Vorkommen von Plantago coronopus. Wie die vorliegende Arbeit zeigt, können aber einige der aus dem Taunus vorliegenden Aufnahmen mit Plantago coronopus zu den Salzwiesen im weiteren Sinne gestellt werden (Juncetea maritimi). Entsprechendes gilt für die hier präsentierte Vegetationsaufnahme eines Cochlearia-danica-Bestandes. Trifolium fragiferum wurde dagegen in einer als Flutrasen (Molinio-Arrhenatheretea, Agrostietalia stoloniferae) zu bezeichnenden Pflanzengesellschaft angetroffen.