Page:The Book of the Aquarium and Water Cabinet.djvu/134

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THE WATER CABINET.

The GnatCulex pipiens (Linnæus)

In the operation of dragging, many curious larva are brought out, and the mud should be searched carefully for them before washing the net for another cast. The larva

DRAGON FLIES.

a. Virgin Dragon Fly—Calepteryx Virgo.
b. Green Dragon Fly—Æshna varia.

of the gnat is one of the most interesting of these, and during summer may be obtained in hundreds if a little of