The Life-History and Early Stages of Corythucha Parshleyi Gibson

Weiss, Harry B.; Dickerson, Edgar L.

doi:10.4039/ent50401-12

Cited by 3 publications

(2 citation statements)

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“…second and third weeks of June (Tables 1, 3). These observations support those given by Weiss and Dickerson (1918), Barber and Weiss (1922), Bailey (1951), Sheeley and Yonke (1977), and Vogt and McPherson (1986). Clusters of six, seven, and even nine eggs of C. juglandis were also collected on the underside of host plant leaves in the Morgan Arboretum.…”

Section: Discussionsupporting

confidence: 89%

“…They appeared on their food plants in late April or May in Ontario and Québec. The winter hibernation sites and the spring breeding sites of C. juglandis and G. tiliae in Ontario and Québec are similar to the reports for these species in the United States of America by Drake (1917Drake ( , 1928, Weiss (1919), Weiss and Dickerson (1918), Blatchley (1926) (in New Jersey as C. parshleyi Gibson), and Sheeley and Yonke (1977) (in Missouri). In New England, C. juglandis and G. tiliae appear in May or early June (Bailey 1951).…”

Section: Discussionsupporting

confidence: 82%

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Natural history of Corythucha juglandis and Gargaphia tiliae (Hemiptera: Tingidae) in Ontario and Québec, Canada

Javahery

2019

Can Entomol

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The natural history of Corythucha juglandis (Fitch) and Gargaphia tiliae (Walsh) (Hemiptera: Tingidae) was studied in Ontario and Québec, Canada. These univoltine species overwinter as adults in leaf litter in a state of reproductive diapause and become active in April or May. They are specific to their host plants. Adults, eggs, and nymphs of both species were collected from the underside of leaves of host plants. The reproductive systems of both male and female, as well as eggs, nymphs, and operculum of the eggs of the two species, are described and illustrated. Fecundity, incubation period, development of nymphs, feeding, mating, and oviposition were studied. Mating was end-to-end at an angle of 35–40°. The reproductive potential, oviposition pattern, and site selection in the two species were investigated. Parental care of eggs and brood of G. tiliae is also reported and illustrated. Ocelli, true spermathecae, true egg micropyles, and true egg burster are absent in the two species. Fertilisation takes place before chorion formation. Adults, nymphs, and new generation aggregate on the underside of leaves of their host or nearby deciduous plants. In October they fly a short distance to overwintering sites within leaf litter.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 82%