EPHEMERA. 
GENERIC CHARACTER. 
Mouth without either teeth or palpi. 
Wings erect ; hinder ones much shorter than the others. 
Tail furnished with appendices resembling hairs, or bristles. 
SPECIFIC CHARACTER. 
Ephemera vuegata. E. alis fusco-reticulatis maculatisque, cor- 
pore fusco. Linn. Syst. Nat. Gmel. 1. 
p. 2628. 
Wings reticulated and mottled with 
brown ; body brown. 
Ephemera cauda triseta, alis nebuloso- 
maculatis. Syst. Nat. xii. 2. p. 906. 
no. 1. 
Common Day-fly. . Degeer Ins. 2. p. 1 . no* 1. pi. 10. f. 1. 
Sulz. Ins. pi. 17- f- 103. Shaw Gen. 
Zool. 6. p. 24 9. pi, 81. 
We are now about to describe a fly whose duration 
in its perfect state extends so short a term, that 
it is scarcely introduced to the world before it is 
obliged to part with life. In its fly state the ephe- 
mera is a very beautiful insect ; it is of a greenish 
brown colour, with transparent wings, and three 
very long black bristles at the end of the body. 
