Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 THE INSECT WORLD. 151 streams, where it fceds on other insects and small fish, destroy- ing large numbers. During the night the winged individuals leave the ponds, pair, and fly to new localities to lay their eggs. So abundantly do they occur that they sometimes become nui- sances near electric lights, and have been termed from this fact '' electric-light bugs.'' Sometimes we find slender, spider-like crea
Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 THE INSECT WORLD. 151 streams, where it fceds on other insects and small fish, destroy- ing large numbers. During the night the winged individuals leave the ponds, pair, and fly to new localities to lay their eggs. So abundantly do they occur that they sometimes become nui- sances near electric lights, and have been termed from this fact '' electric-light bugs.'' Sometimes we find slender, spider-like creatures of a brown color scudding over the surface of the water at a rapid rate, and Fig. 112. A water-strider, Rheitmatobates rileyi, female.—a, anterior tarsus ; b, ovipositor; c, hind tarsus. these are 'water striders,' or Hyd^'obatidcs. They are inter- esting because some of them pass their entire lives upon the ocean, miles from land. These are said to feed upon the juices of such dead fish and other animals as they find on the surface, and probably also on the floating masses of sea-weed occurring in equatorial regions where they are most common. The first family of economic importance among the terrestrial species is the Redtiviidtz, containing species of quite large size.
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