Epigeal phase of the biological cycle of Forficula auricularia Linnaeus (Dermaptera: Forficulidae) in eastern Canada

2017 ◽  
Vol 149 (5) ◽  
pp. 600-606 ◽  
Author(s):  
Jean-Claude Tourneur

AbstractThe population structure of the European earwig, Forficula auricularia Linnaeus (Dermaptera: Forficulidae), was investigated in three sites in eastern Canada (Montréal, Québec; Fredericton, New Brunswick; Truro, Nova Scotia), with two goals; describe the seasonal trends of the epigeal phase, and ascertain if the three studied populations belong to sibling species “A”, as opposed to sibling species “B” found in Vancouver, British Columbia, Canada. Insects were collected using wooden grooved traps placed on lawns and tree trunks; traps were checked weekly from the first spring melt of the frost barrier until after autumn first frost (epigeal phase). The epigeal phase was short, about five months. The different instars and adults showed a single peak of abundance. No first instars, few second instars, and mostly fourth instars and adults were collected in the arborescent stratum. The data demonstrated that these three populations have the same epigeal phenology. The interbreeding experiment established that the three studied populations belong to the same sibling species (A) of F. auricularia, and differ from sibling species (B) from Vancouver. I suggest that the climatic conditions in eastern Canada are like those in other world regions where sibling species “A” is present, and that these regions represent the edge of the bioclimatic environment of this species because of its limits on reproduction.

Evolution ◽  
1998 ◽  
Vol 52 (1) ◽  
pp. 260 ◽  
Author(s):  
Thierry Wirth ◽  
Rene Le Guellec ◽  
Michel Vancassel ◽  
Michel Veuille

2018 ◽  
Vol 150 (6) ◽  
pp. 697-715
Author(s):  
Charles Vincent ◽  
Tom Lowery ◽  
Jean-Philippe Parent

AbstractIn Canada, viticulture has been practiced since the arrival of European settlers. After a period of low activity due to the prohibition in North America, viticulture enjoyed a renaissance in the 1970s such that it became a rapidly growing industry in Canada. It is currently practiced mainly in five provinces,i.e., British Columbia, Ontario, Québec, Nova Scotia, and New Brunswick. In Eastern Canada, several species of wild vines (VitisLinnaeus; Vitaceae) grew naturally before cultivation of domesticated cultivars and these had their entomofauna. In contrast, no wild vines grew in British Columbia. As a consequence, the insect fauna varies according to the provinces and the regions and the agroclimatic conditions. Here we review the literature relevant to viticultural entomology in Canada and discuss the main grape insects. It is noteworthy that certain insect pests of grapes were the subject of the first issues ofThe Canadian Entomologist. Selected milestones are provided to document the evolution of research in grape entomology in the context of dynamic evolving viticultural and oenological industries. In recent years, the arrival of several invasive species challenged the sustainability of integrated pest management programmes.


2001 ◽  
Vol 133 (1) ◽  
pp. 1-47 ◽  
Author(s):  
Jan Klimaszewski ◽  
Georges Pelletier ◽  
Carole Germain ◽  
Christian Hébert ◽  
Lee M. Humble ◽  
...  

AbstractThe Canadian species of the genus Placusa Erichson are reviewed. Eight species are recorded, of which four constitute new Canadian records (P. despecta Erichson, P. incompleta Sjöberg, P. petulans Casey, and P. vaga Casey) and two are new to science (P. pseudosuecica Klimaszewski sp.nov., and P. canadensis Klimaszewski sp.nov.). Placusa turbata Casey, one of the two species previously recorded from British Columbia, is here considered a synonym of P. tachyporoides (Waltl) and is reported for the first time from eastern Canada (New Brunswick, Ontario, Quebec). New data are provided on the systematics, distribution, bionomics, and relationships of selected North American species. A key to the species occurring in Canada is presented with illustrations of the median lobe of the aedeagus, spermatheca, male tergite 8, antennae, and outline drawings of the head and adult forebody for each species. Selected Palearctic species are also illustrated for easy comparison with the closely related Nearctic species. The Canadian distribution is presented on contour maps, and world distribution is discussed for all species. The following lectotypes are designated for the Nearctic species which were described from more than one specimen without former holotype designation: Casey (1893, 1911): P. frosti, P. strata, P. tacomae, P. turbata; Erichson (1840): P. despecta; and Sachse (1852): Oxypoda minuta Sachse. Oxypoda minuta is transferred to the genus Placusa and newly synonymized with P. despecta Erichson (1840).


1952 ◽  
Vol 84 (6) ◽  
pp. 174-180 ◽  
Author(s):  
D. A. Chant ◽  
J. H. McLeod

During September, 1950, 23,180 specimens of the European earwig, Forficula auricularia L., were collected in Vancouver, British Columbia, for the purpose of recovering the imported parasite Bigonicheta setipennis (Fall.). Great fluctuations were observed in the number of insects caught from day to day. This paper is an attempt to assess the role of various climatic factors in these fluctuations.


1952 ◽  
Vol 84 (11) ◽  
pp. 343-345 ◽  
Author(s):  
J. H. McLeod ◽  
D. A. Chant

In 1936, 1937, and 1938 several colonies of Bigonicheta setipennis (Fall.), a dipterous parasite, were liberated in Vancouver, British Columbia, to aid in the control of the European earwig, Forficula auricularia L. During September and October, 1950, an investigation was initiated to determine the abundance and distribution of this parasite and, if possible, to obtain colonies for release in Newfoundland. Approximately 6,000 of B. setipennis were reared from 50,000 trapped earwigs.


Evolution ◽  
1998 ◽  
Vol 52 (1) ◽  
pp. 260-265 ◽  
Author(s):  
Thierry Wirth ◽  
René Le Guellec ◽  
Michel Vancassel ◽  
Michel Veuille

ZooKeys ◽  
2020 ◽  
Vol 946 ◽  
pp. 53-112 ◽  
Author(s):  
Reginald P. Webster ◽  
Pierre de Tonnancour ◽  
Jon D. Sweeney ◽  
Vincent L. Webster ◽  
Chantelle A. Kostanowicz ◽  
...  

One-hundred-eleven new provincial and territorial Coleoptera records are reported from New Brunswick (64), Nova Scotia (20), Prince Edward Island (5), Quebec (14), Manitoba (3), British Columbia (3), and Yukon Territory (2) for the 26 following families: Carabidae, Dytiscidae, Histeridae, Staphylinidae, Scarabaeidae, Buprestidae, Eucnemidae, Elateridae, Cantharidae, Erotylidae, Monotomidae, Cryptophagidae, Passandridae (first record of this family from New Brunswick), Laemophloeidae, Nitidulidae, Anamorphidae, Coccinellidae, Latridiidae, Mordellidae, Tenebrionidae, Cerambycidae, Chrysomelidae, Anthribidae, Brentidae, Dryophthoridae, and Curculionidae. Among these are ten new Canadian records: Heterosternuta oppositus (Say, 1823) (Dytiscidae) (New Brunswick), Gyrophaena blatchleyi Seevers, 1951 (Staphylinidae) (Quebec), Acropteroxys lecontei Crotch, 1873 (Erotylidae) (Manitoba), Placonotus falinorum Thomas, 2011 (Laemophloeidae) (Quebec), Adelina pallida (Say, 1824) (Tenebrionidae) (Quebec), Poecilocera harrisii (J.L. LeConte, 1851) (Chrysomelidae) (New Brunswick), Plesiobaris albilata (LeConte, 1876) (Curculionidae) (Quebec, New Brunswick), Pseudopityophthorus asperulus (LeConte, 1868) (Curculionidae) (Nova Scotia), Hylurgops palliatus (Gyllenhal, 1813) (Curculionidae) (New Brunswick), and Heteroborips seriatus (Blandford, 1894) (Curculionidae) (Nova Scotia). Plesiobaris disjuncta Casey reported as new for Canada in New Brunswick and Quebec by Webster et al. (2012a) is actually P. albilata (LeConte) and thus P. disjuncta is removed from the faunal list of Canada. Eleven species from New Brunswick not previously reported in literature were found on the online platforms BugGuide.Net and iNaturalist and are reported in this publication. This highlights the importance of online platforms dedicated to recording wildlife observations and citizen science in detecting new species records. Data is also presented for seven species from Quebec and two species from New Brunswick reported by Bousquet et al. (2013) without any supporting information for their occurrence in these provinces. Among the species reported here, 32 are adventive.


2017 ◽  
Vol 95 (8) ◽  
pp. 527-537 ◽  
Author(s):  
James W. Patterson ◽  
Anna M. Duncan ◽  
Kelsey C. McIntyre ◽  
Vett K. Lloyd

Ixodes scapularis Say, 1821 (the black-legged tick) is becoming established in Canada. The northwards expansion of I. scapularis leads to contact between I. scapularis and Ixodes cookei Packard, 1869, a well-established tick species in Eastern Canada. Examination of I. cookei and I. scapularis collected from New Brunswick revealed ticks with ambiguous morphologies, with either a mixture or intermediate traits typical of I. scapularis and I. cookei, including in characteristics typically used as species identifiers. Genetic analysis to determine if these ticks represent hybrids revealed that four had I. cookei derived mitochondrial DNA but I. scapularis nuclear DNA. In one case, the nuclear sequence showed evidence of heterozygosity for I. scapularis and I. cookei sequences, whereas in the others, the nuclear DNA appeared to be entirely derived from I. scapularis. These data strongly suggest genetic hybridization between these two species. Ixodes cookei and hybrid ticks were readily collected from humans and companion animals and specimens infected with Borrelia burgdorferi Johnson et al., 1984, the causative agent of Lyme disease, were identified. These findings raise the issue of genetic introgression of I. scapularis genes into I. cookei and warrant reassessment of the capacity of I. cookei and I. cookei × I. scapularis hybrids to vector Borrelia infection.


1962 ◽  
Vol 94 (11) ◽  
pp. 1171-1175 ◽  
Author(s):  
R. C. Clark ◽  
N. R. Brown

Cremifania nigrocellulata Cz. is one of the complex of predators that attacks A. piceae (Ratz.) in Europe. After studies on its morphology, biology, and distribution were made by Delucchi and Pschorn-Walcher (1954), C. nigrocellulata was reared in Europe by the Commonwealth Institute of Biological Control and introduced into New Brunswick via the Entomology Research Institute for Biological Control, Belleville, Ontario.


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