A reappraisal of the Dinantian floras at Oxroad Bay, East Lothian, Scotland. 1. Floristics and the development of whole-plant concepts

1990 ◽  
Vol 81 (2) ◽  
pp. 127-159 ◽  
Author(s):  
Richard M. Bateman ◽  
Gar W. Rothwell

ABSTRACTRe-investigation of species-rich late Tournaisian floras at Oxroad Bay reveals eight plant-bearing exposures that represent four distinct stratigraphic levels. The allochthonous megafossil assemblages vary in degrees of disarticulation, modes of preservation and taxonomic composition. Within-site stratigraphic distributions are presented for 43 anatomically-preserved organ-species; of these, 12 are new to science, 18 have not previously been recorded at the locality, 21 are illustrated from the locality for the first time and 19 are currently considered endemic. Another six have been recorded in error from unprovenanced water-worn blocks. Nineteen adpressed organ-species are also described. Methods and concepts of whole-plant reconstruction are reviewed. At least 11 whole-plant species occur at Oxroad Bay. The lycopsids comprise an enigmatic plant with anAsteroxylon-like stele and two morphologically- and ecologically-distinct species ofOxroadia. A new species ofProtocalamitesdemonstrates the earliest evidence of heterospory and tuberoid stem-bases in the sphenopsid clade.CladoxylonandStauropterisrepresent the pteropsids. At least five lyginopterid pteridosperm species are present. They include both trees (Eristophyton, Bilignea) and shrubs/pseudoherbs (e.g.Tetrastichiaand theTriradioxylon–Calathopteris–Oxroadopteris–‘Tristichia’ plexus), suggesting a range of life strategies. Their diversity has complicated attempts to reconstruct whole-plants, though attachment is demonstrated between several ovules and cupules, and several ovules and pollen-organs are correlated using shared microspores. Elements of particular evolutionary significance include the ‘megacupule’Calathospermumand a structurally similar pollen-organ aggregate, a bisexualPullarithecacupule, and a complete ontogenetic sequence ofHydraspermaovules. Comparable Dinantian floras are reviewed.

2018 ◽  
Vol 87 (4) ◽  
pp. 287-303
Author(s):  
Neil Cumberlidge ◽  
Savel R. Daniels

Surveys of the freshwater crabs of two islands in the Gulf of Guinea, Central Africa, allowed a revision of the taxonomy of two little-known island endemic species, based for the first time on adult males: Potamonautes margaritarius (A. Milne-Edwards, 1869) from São Tomé, and of P. principe Cumberlidge, Clark and Baillie, 2002, from Príncipe (Brachyura; Potamonautidae). A new species of Potamonautes from southern São Tomé (Potamonautes saotome sp. nov.) is also described that is genetically distinct and has a clearly separate geographic distribution from P. margaritarius from northern São Tomé. The new species from southern São Tomé can be recognized by a suite of characters of the carapace, thoracic sternum, and gonopods. The taxonomy of P. margaritarius (A. Milne-Edwards, 1869) is stabilized by selecting a neotype from northern São Tomé. Potamonautes principe from Príncipe is the most distinct of the three taxa, with a more swollen carapace that has smooth anterolateral margins, and a shorter, straighter male first gonopod. All three taxa are morphologically distinct species that have also been clearly distinguished as evolutionarily separate lineages by mtDNA analysis and haplotyping in an earlier study. Previous phylogenetic evidence supports two separate island colonization events at different times in the past from different ancestral populations, one to São Tomé and another to Príncipe that resulted in the establishment of the endemic freshwater crab faunas of these two islands.


2012 ◽  
Vol 64 (1) ◽  
pp. 337-343 ◽  
Author(s):  
Draga Graora ◽  
Radoslava Spasic ◽  
L. Mihajlovic

Spruce bud scale, Physokermes piceae, develops on the genus Picea. Large colonies of this species are constantly present on Picea abies in green areas in the Belgrade territory, causing the drying of needles, branches and whole plants. Therefore, Ph. piceae is a significant spruce pest. Spruce scales attract many entomophagous insects able to reduce pest population. Parasitoid wasps Coccophagus lycimnia (Walk) (Aphelinidae) and Microterys lunatus (Dalm.) (Encyrtidae) were reared. Predators Exochomus quadripustulatus L., Scymnus abietis Paykull (Coccinellidae) and Anthribus nebulosus Forster (Anthribidae) were determined. Both species of ladybird were confirmed as predators of Ph. piceae for the first time in Serbia, while S. abietis is a new species for the fauna of Serbia. The most effective natural enemy of Ph. piceae was A. nebulosus, reducing populations by 68-80%.


1967 ◽  
Vol 99 (7) ◽  
pp. 721-727 ◽  
Author(s):  
Eugene Munroe

AbstractThe nominal genera Mimocomma Warren, Polychorista Warren, and Parudea Swinhoe are synonymized with Thliptoceras, and Prophantis Warren is removed from synonymy. Twenty previously described nominal species are referred to Thliptoceras; of these, 12 are recognized as valid. The following nominal species are referred to Thliptoceras for the first time: Circobotys marginalis Hampson, from Crocidophora; Mimocomma fulvimargo Warren, from Crocidophora; Salbia althealis Walker, with its three synonyms, Botys cydipeialis Walker, Botys tisiasalis Walker, and Phycidicera manicalis Snellen, all from Deba; Botys gladialis Leech, from Crocidophora; Crocidophora rufitinctalis Hampson; Ebulea decoloralis Warren, from Loxostege; Pyrausta torridalis Hampson; Phlyctaenodes decoloralis sinensis Caradja, from Loxostege; Parudea fimbriata Swinhoe; Crocidophora artatalis Caradja; Botys fuscocilialis Snellen, from Pyrausta. Lectotypes are designated for: Hapalia cascalis Swinhoe; Thliptoceras variabile [-is] Swinhoe; Thliptoceras epicrocale [-is] Swinhoe; Circobotys marginalis Hampson; Botys gladialis Leech; Ebulea decoloralis Warren; and Crocidophora artatalis Caradja. Thliptoceras rufitinctale (Hampson) is sunk as a junior synonym of T. gladiale (Leech) and T. torridale (Hampson) as a junior synonym of T. decolorale (Warren). T. sinense (Caradja) is considered a distinct species and not a subspecies of T. decolorale (Warren). T. buettikeri is described as a new species from Thailand.


1912 ◽  
Vol 15 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Hideyo Noguchi

I have described the successful cultivation of two distinct species of Treponema from the oral cavity of man. The species differ from one another morphologically and in respect to their cultural properties. As the two species have now been clearly separated and cultivated for the first time, I propose for them the names Treponema microdentium and macrodentium, respectively. Division along the longitudinal axis has been demonstrated for both Treponema macrodentium and microdentium. When the micro- and macrodentium are cultivated under imperfect anaerobic conditions, they undergo involution, but still continue to vegetate to some extent. Finally, a spiral organism has been cultivated and described that may be merely an involuted form of the macrodentium, or it may be a new species altogether.


Zootaxa ◽  
2004 ◽  
Vol 472 (1) ◽  
pp. 1 ◽  
Author(s):  
SHANE T. AHYONG ◽  
GARY C.B. POORE

Twenty-nine species in five genera of deep-water Galatheidae are reported from southern and eastern Australia increasing the known Australian galatheid fauna from 55 to 74. Species of Paramunida and Agononida are reported for the first time from southern Australia, with a new species of each described, P. antipodes and A. procera. Seven new species of Munida are described (M. aequalis, M. asprosoma, M. chydaea, M. endeavourae, M. isos, M. kapala, and M. spinicruris) increasing the number of known Australian species from 12 to 19. Four new species of Munidopsis are described (Ms. kensleyi, Ms. proales, Ms. tasmaniae, Ms. treis) and three species are newly recorded from Australia (Ms. centrina, Ms. dasypus, Ms. subsquamosa) increasing the known fauna from 11 to 18. Previous records of Ms. dasypus are based on Ms. kensleyi, but we include the first reliable record of M. dasypus from Australia. Previous records of Munida japonica from Australia are referable to M. rogeri Macpherson. Previous Australian records of Munida microps Alcock are referable to two new species, M. endeavourae and M. isos. Previous Australian records of Ms. dasypus are referable to Ms. kensleyi. Raymunida formosanus Lin, Chan & Chu is reported for the first time from Australia. Alcock s (1894) Munida squamosa var. prolixa is recognised as a distinct species of Agononida.


2020 ◽  
Vol 71 (1) ◽  
pp. 45-57
Author(s):  
Mark R. Shaw

The small Microgastrinae genus Venanides is recorded from Europe (Netherlands, Germany and Czech Republic) for the first time, where one species, Venanides carcinae sp. nov., described here, proves to be a regular solitary parasitoid of Carcina quercana. Outline notes on its biology, phenology and abundance are given.


2020 ◽  
Vol 29 (2) ◽  
pp. 278-283
Author(s):  
S.G. Ermilov

The oribatid mite subgenus Scheloribates (Topobates) Grandjean, 1958, is recorded from the Neotropical region for the first time. A new species of this subgenus is described from the leaf litter collected in Cayo Agua Island, Panama. Scheloribates (Topobates) panamaensis sp. nov. differs from its related species by the very large body size and presence of a strong ventrodistal process on the leg femora II–IV.


2016 ◽  
Vol 25 (2) ◽  
pp. 318-332
Author(s):  
D.M. Astakhov

The Palaearctic species of the genus Trichardis Hermann, 1906 are reviewed. A new species, T. lehri sp. nov., is described. A new synonymy is established: T. leucocoma (van der Wulp, 1899) = T. afanasievae Lehr, 1964, syn. nov. The male of T. mongolica V. Richter, 1972 is described for the first time. External features and the male genitalia of T. lehri sp. nov., T. leucocoma (van der Wulp, 1899) and T. mongolica V. Richter, 1972 are illustrated with photographs.


2011 ◽  
Vol 20 (2) ◽  
pp. 350-355
Author(s):  
A.V. Barkalov ◽  
X.-Y. Cheng

A review of species of the genus Blera Billberg, 1820 known from China is given. A new species, Blera longiseta sp. nov., is described. Three species, B. japonica (Shiraki, 1930), B. nitens (Stackelberg, 1923) and B. violovitshi Mutin, 1991, are recorded for the first time from China. An illustrated key to species is provided.


2011 ◽  
Vol 20 (1) ◽  
pp. 85-95 ◽  
Author(s):  
S.A. Belokobylskij ◽  
T.S. Kostromina

Two braconid genera from the subfamily Alysiinae, Lodbrokia Hedqvist, 1962 and Asyntactus Marshall, 1898, are recorded in the fauna of Russia and in the Asian continent for the first time. A new species Lodbrokia uralica sp. nov. is described from the Urals, and a key to species of this genus is provided. Redescriptions of the female and male of Asyntactus rhogaleus Marshall, 1898 with information about the level of variability of its morphological characters are given. Asyntactus sigalphoides Marshall, 1898 is synonymised with A. rhogaleus Marshall, 1898 (syn. nov.).


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