Survey of the Microcoryphia (Insecta) of the northeastern United States and adjacent provinces of Canada.

Publication Type:Journal Article
Year of Publication:1980
Authors:P. Wygodzinsky, Schmidt K.
Volume:2701
Pagination:1 - 17
Date Published:1980
Keywords:Archaeognatha, Machiloides petauristes, Microcoryphia, Pedetontus saltator, Petrobius brevistylis, Trigoniophthalmus alternatus
Abstract:

A survey of the Microcoryphia of New York,

New Jersey, and Pennsylvania as well as the New

England states and the Canadian provinces of

New Brunswick, Nova Scotia, and Newfoundland

showed four species present. Petrobius brevistylis

and Trigoniophthalmus alternatus were

probably introduced from Europe on ballast; Pedetontus

saltator, new species, and Machiloides

petauristes, new species, are native. Petrobius

canadensis Paclt, 1969, is synonymized with Petrobius

brevistylis Carpenter, 1913. The presence

of Petrobius maritimus (Leach) in North America

is not confirmed. Machilis variabilis Say, described

from "North America," is not identifiable.

Males were not found among the hundreds of

specimens of North American Trigoniophthalmus

alternatus examined, making a parthenogenetic

mode of reproduction highly likely. Males were

rare in Petrobius brevistylis (approximately 3 percent

of all specimens examined), and were not

discovered among the limited material of the new

species of Pedetontus and Machiloides.

URL:http://digitallibrary.amnh.org/dspace/handle/2246/5387
Short Title:American Museum Novitates
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