The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
|Option 1||Option 2|
|Cerci without a dorsal fringe of long silky setae||Cerci with prominent dorsal fringe of long, silky setae |
|Abdomen of most species speckled (dark pigment at bases of intercalary setae)||Abdominal terga not speckled |
|Primarily Eastern North America||Western North America|
4 Example Specimens
This striking golden stonefly is the first of its species I've had the chance to photograph.
This is a difficult one. It keys convincingly to either Calineuria or Doroneuria. There is no mesal longitudinal row of silky hairs on thorax and abdominal dorsum, in either my pictures or anything I can see up close under the microscope. Lacking those hairs should indicate Calineuria. But abdominal sternum 7 has an incomplete posterior setal fringe, which would indicate Doroneuria, although the key says "usually" on that characteristic. For now I'm going with Calineuria, but it's far from certain. Maybe it's a younger Doroneuria and they don't grow that row of hairs until they're older. The markings on the head, especially the shape of the bright spot around the posterior ocelli, match online images of Calineuria californica better than Doroneuria.
|Perlesta||Go to Couplet 9|