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For instance, the New Zealand black stonefly Austroperla is a forest dwelling shredder that is toxic to predators due to its production of hydrogen cyanide. [4] The warning colouration of this species is mimicked by several lineages of the unrelated non-toxic New Zealand stonefly Zelandoperla .
Zelandoperla fenestrata is a widespread endemic New Zealand ‘long-tailed’ stonefly that is often abundant in high-gradient stony streams, from near sea-level up to alpine elevations. [1] The species name 'fenestrata' refers to the window-like rectangular patterning visible on the wings of non-melanic adult specimens.
Nymph of a golden stonefly, Plecoptera, Perlidae Dinotoperla imago (adult) (Gripopterygidae: Dinotoperlinae) Stoneflies have a generalized anatomy, with few specialized features compared to other insects. They have simple mouthparts with chewing mandibles, long, multiple-segmented antennae, large compound eyes, and two or three ocelli. The legs ...
Steelhead and salmon distinct population segments Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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Salmon fly patterns (not to be confused with flies for Atlantic Salmon) are an important collection of artificial flies used by fly anglers to imitate nymphal and adult forms of Pteronarcys californica a giant stonefly or salmon fly.
They live in a lotic-erosional habitat. Larvae of giant stoneflies live in cool streams of small to medium size, in leaf and woody debris packs. They prefer swift riffles between cobbles and boulders.
The body of this stonefly is flattened and streamlined to aid in minimizing water resistance in a flowing stream. The Peltoperlidae are classified as in the feeding group shredders-detritivores. They chew and mine through leaf litter in their habitats.