Chirotenetes siccus Walsh. 1921. Chirotenetes; Mayflies--Anatomy.

Description :

Chirotenetes siccus Walsh. Female subimago 66; Sketch of tails of male subimago to show their relative length 67; Female imago 68; Sketch of tails of male imago to show their relative length 69; legs of one side of male imago 70; End of abdomen of adult male from beneath 71; Nymph from the side. Note the plancton-gathering fringes of the fore legs 72; Tail fin of the nymph; outer tails fringed only on the inner side 73