Corvallis : Agricultural Experiment Station, Oregon State University
Abstract
Seven species of Gerridae are known to occur in Oregon and
Washington. These are Gerris (Aquarius) remigis Say, Gerris (Gerris)
buenoi Kirkaldy, Gerris (Gerris) gillettei Lethierry and Severin, Gerris
(Gerris) incognitus Drake and Hottes, Gerris (Gerris) incurvatus Drake
and Hottes, Limnoporus notabilis (Drake and Hottes), and Metrobates
trux infuscatus Usinger. The literature dealing with the family is reviewed.
A diagnostic key for species identification is given. Species
diagnoses, geographical and seasonal distributions, habitat preferences,
and illustrations of abdominal regions also are provided.Published April 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
