Megaloptera
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Megaloptera from the Latin meaning "ample wings" is the order that includes alderflies, dobsonflies, and fishflies. They are considered beneficial, as their megalopteran larvae help control the black fly population by consuming their larvae, and are an important source of fish food.
Identification
Members of this order are 9-70mm in length, and have large hind wings which are wider at the base than the fore wings. At rest, the wings are folded on the back, roof like. They are poor fliers.
Life Cycle
Megalopterans undergo complete metamorphosis, going through a distinct pupal stage. Adults eat very little or do not eat at all.
Habitat
Nymphs are aquatic, and are generally found in freshwater ponds and streams. Adults are usually found in the vicinity of nymph habitats.
Taxonomy
Megaloptera was formerly a suborder of the order neuroptera, or "net-wings", as they have densely veined wings as well. However, they lack forking veins at the wing margins.
Number of species
There are 180 species found worldwide, 20 of which are found in North America.
Suborders
There are two families in this order.