STRUCTURE OF AN ASYMMETRIC HYBRID ZONE BETWEEN TWO WATER STRIDER SPECIES (HEMIPTERA: GERRIDAE: LIMNOPORUS )

Three new species of the water strider genus Rhyacobates Esaki, 1923 (Hemiptera: Gerridae) from Vietnam.

Three new species: Rhyacobates zetteli sp.n., R. angustus sp.n., and R. constrictus sp.n., all from mountainous areas of northern Vietnam, are described. With these new taxa, a total of six species of Rhyacobates has been recorded from       Vietnam. A key to species of Rhyacobates occurring in Vietnam is provided.

Factors affecting water strider (Hemiptera: Gerridae) mercury concentrations in lotic systems.

Water striders (Hemiptera: Gerridae) have been considered as a potential sentinel for mercury (Hg) contamination of freshwater ecosystems, yet little is known about factors that control Hg concentrations in this invertebrate. Striders were collected from 80 streams and rivers in New Brunswick, Canada, in August and September of 2004 through 2007 to assess the influence of factors such as diet, ...

Space Use by a Neotropical Water Strider (Hemiptera: Gerridae): Sex and Age-class Differences

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Space Use by a Neotropical Water Strider (Hemiptera: Gerridae): Sex and Age-class' Differences

Differential movement patterns and microhabitat distributions of age classes have recently been repotted in several water surface-inhabiting insects Uamieson and Scudder 1974, Vepsalainen and Jarvinen 1974, Wilson et al. 1978, Birch et al. 1979). Juvenile age classes may be displaced because of aggression by adults (Wilson et al. 1978) or because of selection for different microhabitats (Vepsal...

Genetic Structure of Two Species of Waterstriders (gerridae: Hemiptera) with Differing Degrees of Winglessness.