Water Strider (Gerris remigis)
(Order Hemiptera; Family Gerridae)
Invertebrates Around Las Vegas, Wildlife Around Las Vegas
Water Strider (Order Hemiptera; Family Gerridae)

General: Water Striders (Gerris remigis) are flying insects that spend most of their time "walking" on the water surface of ponds, marshes, and other slow-moving bodies of water. Males are about 1/2-inch long, and females are slightly larger.

Water Striders have an elongate body and six legs. The front legs are short, but the other two pairs are long. The front legs are short and used for grasping prey. The middle pair of legs are used for moving on the water surface (i.e., rowing), and the back legs are used for steering. The legs are covered with tiny hairs that acts to keep the leg dry.

Water Strider (Order Hemiptera; Family Gerridae)

Water striders are predators eat small insects that land on the surface of the water and the larvae of emerging insects. Water striders detect vibrations on the water surface and use them to locate their tiny prey. As much as they might want to, water striders are too small to bite humans.

Water Strider (Order Hemiptera; Family Gerridae)

Water striders can escape predators by diving underwater or by flying away, although it seems that fish don't like to eat them. They can also fly to other ponds, which is helpful for an insect living in desert springs that sometimes dry up.

Family Gerridae Unidentified Gerrids; these social creatures were in a calm spot on the Virgin River.
Family Gerridae Unidentified Gerrids; these social creatures were in a calm spot on the Virgin River.
Family Gerridae Unidentified Gerrids; these social creatures were in a calm spot on the Virgin River.

Note: All distances, elevations, and other facts are approximate.
copyright; Last updated 100118

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