» Family Siphlonuridae (Gray Drakes)
3 genera aren't included.
This is page 2 of specimens of Siphlonuridae. Visit the main Siphlonuridae page for:
- The behavior and habitat of Siphlonuridae.
- 3 underwater pictures of Siphlonuridae.
Pictures of 16 Mayfly Specimens in the Family Siphlonuridae:
Siphlonurus quebecensis (Gray Drake) Mayfly Nymph
View 5 PicturesI photographed this nymph in the middle of molting between one instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) and the next (not hatching). Siphlonurus phyllis (Gray Drake) Mayfly Nymph
View 3 PicturesThis specimen was the first record from Montana and the first record from the mountain west except Alberta where it was first described. It was found in temporary ponds.The nymph has double gills on all segments. The abdominal stripe is an important feature for identification