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Insects by Common Name
Needleflies
Scientific Names
| Match | Scientific Name |
 | Leuctridae |
| Leuctra |
| Megaleuctra |
| Perlomyia |
Like most common names, "Needlefly" can refer to more than one taxon. They're previewed below, along with 2 specimens. For more detail click through to the scientific names.
Stonefly Family Leuctridae
These are often called Needleflies.
Leuctra is the only genus of any known importance to trout anglers. Their wings are rolled to a needle-like point; hence the common name, needle flies.
Megaleuctra stigmata (Little Black Needlefly) Stonefly Adult
View 3 PicturesThis is one of rarest stoneflies in western Montana. It is a bit unusual that it is fairly abundant in a handful of streams that empty into the east side of Flathead Lake. A very beautiful bug.
View 3 PicturesThis is one of rarest stoneflies in western Montana. It is a bit unusual that it is fairly abundant in a handful of streams that empty into the east side of Flathead Lake. A very beautiful bug.See 3 more specimens...
Stonefly Genus Leuctra
These are often called Needleflies.
Ernest Schwiebert notes in Matching the Hatch that trout are very fond of these uncommon stoneflies when they are available.
Stonefly Genus Megaleuctra
These are often called Needleflies.
Megaleuctra stigmata (Little Black Needlefly) Stonefly Adult
View 3 PicturesThis is one of rarest stoneflies in western Montana. It is a bit unusual that it is fairly abundant in a handful of streams that empty into the east side of Flathead Lake. A very beautiful bug.
View 3 PicturesThis is one of rarest stoneflies in western Montana. It is a bit unusual that it is fairly abundant in a handful of streams that empty into the east side of Flathead Lake. A very beautiful bug.Stonefly Genus Perlomyia
These are often called Needleflies.
See 1 more specimens...
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