Wake Atoll is an isolated chain of three islets located in the Western Pacific. Included in its endemic flora is a representative of the genus Gossypium colloquially referred to as Wake Island ...cotton. Stanley G. Stephens pointed out that “Wake Island cotton does not resemble closely either the Caribbean or other Pacific forms.” Taking into consideration morphological distinctions, the geographic isolation of Wake Atoll, and newly generated molecular data presented here, we conclude that the cottons of Wake Atoll do in fact represent a new species of Gossypium, here named Gossypium stephensii. This name is chosen to commemorate the eminent natural historian, evolutionary geneticist, and cotton biologist, S. G. Stephens.
Cundill History Prize FinalistLongman– History Today Prize Finalist "Meticulous environmental-historical detective work."— Times Literary Supplement When Europeans first arrived in North America, ...they faced a cold new world. The average global temperature had dropped to lows unseen in millennia. The effects of this climactic upheaval were stark and unpredictable: blizzards and deep freezes, droughts and famines, winters in which everything froze, even the Rio Grande. A Cold Welcome tells the story of this crucial period, taking us from Europe's earliest expeditions in unfamiliar landscapes to the perilous first winters in Quebec and Jamestown. As we confront our own uncertain future, it offers a powerful reminder of the unexpected risks of an unpredictable climate."A remarkable journey through the complex impacts of the Little Ice Age on Colonial North America…This beautifully written, important book leaves us in no doubt that we ignore the chronicle of past climate change at our peril. I found it hard to put down."—Brian Fagan, author of The Little Ice Age "Deeply researched and exciting…His fresh account of the climatic forces shaping the colonization of North America differs significantly from long-standing interpretations of those early calamities."— New York Review of Books
Cloeon tzeltal sp. nov Varela-Hernandez, Fernando; Riquelme, Francisco; Montiel-Chavez, Josefina
Canadian journal of earth sciences,
08/2022, Letnik:
59, Številka:
8
Journal Article
Recenzirano
A new fossil species of mayfly of the genus Cloeon Leach, 1815 (Ephemeroptera, Baetidae) is described. The type material comprises female imagines from 24 amber inclusions, from Miocene strata of ...Chiapas in southern Mexico. The fossil species, Cloeon tzeltal sp. nov., closely resembles those in the genus Cloeon by the following diagnostic characters: absence of hind wings; two major crossveins between R1 and R2 not in line with the crossveins below them; single marginal intercalaries; and basal crossveins between veins R and Rs situated more basally than the following vein. The new species can be distinguished from extant species of Cloeon by the absence of colored costal and subcostal fields in the forewings and the absence of transversal veins in vitta broadly bordered with white. Extant species of the genus Cloeon in America have an exclusive distribution in the northern part of the continent; with the exception of one introduced taxon, no valid species have been recorded in the tropics. As such, the fossil record of Cloeon in the southernmost part of North America suggests a broader geographic distribution of this genus in the geological past, including the southernmost part of North America.
Background The sucking louse fauna of endemic Australian rodents has been under-studied for decades. Sixty-five species of native rodents have been recorded in Australia. However, only 11 species of ...lice have been reported from 11 species of endemic Australian rodents. Results We describe a new species of sucking louse, Hoplopleura villosissima Wang (Psocodea: Phthiraptera: Hoplopleuridae), and report a new host record of the spiny rat louse, Polyplax spinulosa Burmeister, 1839 (Psocodea: Phthiraptera: Polyplacidae), from the long-haired rat, Rattus villosissimus Waite (Rodentia: Muridae), which is endemic to Australia. Conclusions This study is the first record of sucking louse from R. villosissimus and the first record of a species of Polyplax Enderlein, 1904 from an endemic Australian rodent. This study brings the total number of sucking louse species in endemic Australian rodents from 11 to 13. Previously, only the introduced brown rat, Rattus norvegicus Berkenhout and the black rat, Rattus rattus Linnaeus were recorded as the hosts of P. spinulosa in Australia. Because R. villosissimus overlaps with R. rattus in distribution but not with R. norvegicus, we propose that P. spinulosa transferred to R. villosissimus from R. rattus. Keywords: Phthiraptera, Psocodea, Hoplopleuridae, Polyplacidae, Hoplopleura villosissima, Polyplax spinulosa, Muridae, Rattus villosissimus, Rattus rattus
 The genus Blepharicera Macquart, 1843 is recorded from Sichuan, China for the first time with the following three new species: B. gengdica sp. nov. , B. balangshana sp. nov. and B. kongsica sp. ...nov. , increasing the number of Chinese Blepharicera species to eleven. The new species are distinguished from congeners mainly by their male genitalia. Descriptions and illustrations for the new species and an updated key to Chinese Blepharicera species are presented. Keywords: Blepharicerinae , chinese fauna, net-winged midge, taxonomy
 The distribution of the five Erhaia (Gastropoda, Truncatelloidea, Amnicolidae) species that are diagnosed by both morphological and molecular data is combined with several records of less ...completely diagnosed nominal Erhaia species. The resulting distribution pattern is summarized in a map and is discussed herein. Erhaia norbui sp. nov. is described from Bhutan on the basis of shell morphology and two mitochondrial DNA barcoding markers. A molecular phylogeny is presented for the five Erhaia species for which molecular data are available, three of which form a separate clade and are from Bhutan. Keywords: 16S, Bhutan, China, COI, Erhaia , India, Nepal, taxonomy
 This works presents information on the diversity of the Tabanidae of Honduras as a product of the examination of 386 specimens and a literature review. Thirteen species and two genera ...(Bolbodimyia and Dasychela ) are recorded from the country for the first time. Eighty-five species distributed in 22 genera, five tribes, and three subfamilies are now known from Honduras. A key to the subfamilies, tribes, and genera of the known Honduran species is also included. All new records are mapped and illustrated to aid in the identification of the species. Keywords: Central America, diversity, horse flies, tabanids, taxonomy
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