Dark Tan Spinners
This common name refers to only one species.
These are sometimes called Dark Tan Spinners.
Female Rhithrogena hageni (Western Black Quill) Mayfly Dun
View 7 PicturesI was surprised by the olive cast on the body of this female Rhithrogena dun, which led me to mistake it for a western green drake (Drunella) in the field. I was pleasantly surprised to get a closer look and find something I hadn't collected yet. Its species ID is based on proximity to male spinner collected on the same trip, as well as physical similarity (size, tergite (Tergite: The top (dorsal) part of a single segment on an insect's abdomen when it consists of a single chitinous plate (sclerite), or an individual sclerite if the segment has more than one.) coloration, dark streaks on the femora (Femur: The main segment of an insect's leg close to the body, in between the tibia and the trochanter.)) to that specimen.
Collected July 4, 2020
from in Added to Troutnut.com by on July 12, 2020