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 |
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Abdominal tergum 9 with sclerite, sometimes pale and inconspicuous or obscured by posterior margin of abdominal tergum 8 (sf 19.59, 19.60) | Abdominal tergum 9 entirely membraneous (sf 19.73) |
Remaining families: Glossosomatidae, Hydrobiosidae, Phryganeidae, and Rhyacophilidae | Remaining families: Dipseudopsidae, Philopotamidae, Polycentropodidae, Psychomyiidae, and Xiphocentronidae |
5 Example Specimens | 5 Example Specimens |
Go to Couplet 8 | Go to Couplet 11 |