scholarly journals Lifecycle of the invasive omnivore, Forficula auricularia , in Australian grain growing environments

2020 ◽  
Author(s):  
Matthew Binns ◽  
Ary A Hoffmann ◽  
Maarten Helden ◽  
Thomas Heddle ◽  
Matthew P Hill ◽  
...  
Keyword(s):  
Forficula Auricularia

Molecular and Reproductive Characterization of Sibling Species in the European Earwig (Forficula auricularia)

Evolution ◽  
1998 ◽  
Vol 52 (1) ◽  
pp. 260 ◽  
Author(s):  
Thierry Wirth ◽  
Rene Le Guellec ◽  
Michel Vancassel ◽  
Michel Veuille
Keyword(s):  
Sibling Species ◽  
Forficula Auricularia ◽  
European Earwig

Note on Control of the European Earwig, Forficula auricularia L., in Newfoundland With Traps and Attractants

1965 ◽  
Vol 97 (10) ◽  
pp. 1075-1076 ◽  
Author(s):  
Ray F. Morris
Keyword(s):  
Peanut Butter ◽  
Pitfall Traps ◽  
Forficula Auricularia ◽  
Four Corners ◽  
Set Up ◽  
European Earwig

In a test at St. John's from 20 August to 9 September 1964, grooved-board traps captured more specimens of the Eluropean earwig, Forficula auricularia L., than pitfall traps containing attractants. On 19 August two replicates of one grooved-board and eight Legner traps (Fig. 1) containing bran flakes plus an attractant were set up on a city lot. The Legner traps were set in the soil so that their tops were level with the surface. They were protected from rain by a 12 in. × 12 in. board held in position over the opening by short legs at the four corners. The attractants used were: peanut butter, cod oil, sugar, molasses, honey and macerated earwigs. The traps were attended from 21 August to 9 September and all earwigs removed daily and counted in the laboratory.

scholarly journals The ratio between spindle lengths in the spermatocyte metaphases of Helix pomatia

1914 ◽  
Vol 87 (594) ◽  
pp. 192-197 ◽  
Keyword(s):  
Cell Volume ◽  
Mitotic Spindle ◽  
Helix Pomatia ◽  
Primary Spermatocyte ◽  
The Other ◽  
Forficula Auricularia ◽  
Secondary Spermatocyte ◽  
Other Hand

I have recently shown that in Forficula auricularia the length of the mitotic spindle, i. e. the distance between the centrosomes, seems to be a constant at the conclusion of each spermatocyte metaphase. The ratio between the lengths found at this stage is almost identical with the ratio between the radii of two spheres of which the volume of one is equal to twice that of the other; and, since the volume of the primary spermatocyte cell in the metaphase is presumably equal to twice that of the secondary spermatocyte, connection is suggested between the length of the spindle and the volume of the cell. I now propose to measure spindle lengths in the spermatocyte metaphases of Helix pomatia . As in the case of Forficula, the chromosomes are spheres or very short rods, and all seem to divide on the spindle at the same time ; the conclusion of each metaphase is therefore easily recognised. If the lengths are found to be constants, and if the ratio between them is approximately 1·26:1, the connection .between spindle length and cell volume is again suggested: if, on the other hand, lengths are not constants, or if the ratio between them is not approximately that mentioned above, the suggested connection is at once disproved.

Influence of diet on development and oviposition of Forficula auricularia (Dermaptera: Forficulidae)

2001 ◽  
Vol 133 (5) ◽  
pp. 705-708 ◽  
Author(s):  
Ghislain Berleur ◽  
Jean Gingras ◽  
Jean-Claude Tourneur
Keyword(s):  
Food Preference ◽  
Rhopalosiphum Padi ◽  
Soil Surface ◽  
Cold Weather ◽  
Forficula Auricularia ◽  
Content Analyses ◽  
European Earwig ◽  
Preference Tests ◽  
Daylight Period ◽  
Better Than

In North America, the life cycle of the European earwig (Forficula auricularia L.) can be divided into a nesting phase (hypogean phase) and a free-foraging phase (epigean phase) (Crumb et al. 1941; Behura 1956; Lamb and Wellington 1975). Adults spend the nesting phase in the soil; females burrow into the ground at the onset of the cold weather, lay eggs, and then care for the eggs. Hatching occurs in spring; first- or second-instar nymphs move to the soil surface for the free-foraging period. The earwig, a nocturnal insect, spends the entire daylight period of hiding under trash or in dark crevices. Where two broods occur, females reenter the ground a second time (Lamb and Wellington 1975). Stomach content analyses (Crumb et al. 1941; Sunderland and Vickerman 1980) and food preference tests (McLeod and Chant 1952; Buxton and Madge 1976) revealed that the European earwig is omnivorous. Under laboratory conditions, nymphs fed freshly frozen aphids, Rhopalosiphum padi (L.) (Hemiptera: Aphididae), survive better than those fed green algae or carrots, develop faster, and produce heavier females (Phillips 1981; Carrillo 1985).

scholarly journals Climate, human influence and the distribution limits of the invasive European earwig, Forficula auricularia , in Australia

2018 ◽  
Vol 75 (1) ◽  
pp. 134-143 ◽  
Author(s):  
Matthew P Hill ◽  
Matthew Binns ◽  
Paul A Umina ◽  
Ary A Hoffmann ◽  
Sarina Macfadyen
Keyword(s):  
Human Influence ◽  
Forficula Auricularia ◽  
Distribution Limits ◽  
European Earwig
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