RM
Damselfly head, SEM
Coloured scanning electron micrograph (SEM) of Damselfly head (common blue damselfly; Enallagma cyathigerum). Enallagma cyathigerum (known as: common blue damselfly, common bluet, or northern bluet) is in the family Coenagrionidae. This family is referred to as the narrow-winged damselflies or the pond damselflies. The Coenagrionidae have a worldwide distribution, and are among the most common of damselfly families. This family has the smallest of damselfly species. Magnification: x4. 5 when shortest axis printed at 25 millimetres.
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