|Ventral margin of femora dark forming mesal yellow window
|Ventral margin of femora light
|Apical portion of male hemitergal process long and sinuate, toe bluntly rounded
|Swollen area of male hemitergal process adjacent to foot obscuring ankle area
|Dark pirgment areas on female sterna 8 and 9 large quadrangular
|Dark pigment areas of female sterna 8 and 9 not quadrangular
2 Example Specimens
This stonefly emerged in my aquarium, and unfortunately I severely damaged its wings just trying to catch it. It's still an interesting specimen, especially since I was able to also photograph the nymphal shuck it emerged from. I was surprised by just how light it was shortly after emerging. I photographed it a couple days later when it had darkened considerably; it was a pale, almost pastel yellow at first.