Saturday, May 19, 2007

Midnight Mothing

To collect moths at night, scientists set up a light trap in Rock Creek Park. They shine two different types of lights—black lights and mercury vapor lights—against a white sheet or tent, attracting moths and other insects.

Despite the cold temperature, about 15 species of moth have been counted, as well as about 20 species of caterpillars.

Photograph by Mark Christmas/NGS

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