*SHOW ~ British Entomology - The genera of Ephemeroptera. 11 May 2003.
 
*ITEM DESCRIPTIONS 
 
# \i{}Ameletus\i0{} <Eaton>/
2,1/2 3,1<in males>/2<in females> 4,2 10,2 12,1 13,2 16,2 17,2 19,2
20,1 21,2 24,1 25,1 26,2 28,3 29,8 30,1<\i{}A. inopinatus\i0{}>
32<ameletus> 
 
# \i{}Baetis\i0{} <Leach>/
2,1/2 4,1<in males>/2<in females> 5<in the males,>,1 10,1 11,2 12,1
13,1 14,1/2 17,2/3<?> 20,1 24,1 25,1 26,2 27,2 28,2 29,1 30,9
31<\i{}B. atrebatinus\i0{} (Dark Olive Dun and Spinner), \i{}B.
buceratus\i0{}, \i{}B. digitatus\i0{}, \i{}B. fuscatus\i0{} (Pale
Watery Dun and male Spinner, Golden Spinner female), \i{}B.
muticus\i0{} (Iron Blue Dun, Iron Blue or Jenny Spinner male, and
Little Claret female Spinner), \i{}B. niger\i0{}, \i{}B. rhodani\i0{}
(Large Dark Olive Dun and male Spinner, Large Red female Spinner),
\i{}B. scambus\i0{} Small Dark Olive Dun and male Spinner, (Small Red
female Spinner), and \i{}B. vernus\i0{} (Medium Olive Dun and male
Spinner, Red Spinner female)> 32<baetis> 
 
# \i{}Brachycercus\i0{} <Curtis>/
1<\i{}Eurycaenis\i0{} Bengtsson> 2,1/2 4,2 6,1 7,1 10,2 12,2 15,2 17,2
20,2 25,2 26,2 28,2 29,2 30,1<\i{}B. harrisella\i0{}> 32<brachyce> 
 
# \i{}Caenis\i0{} <Stephens>/
1<Ordella Campion> 2,1/2 4,2 6,2 7,1 10,2 12,2 15,1 17,2 20,2 25,2
26,2 28,2 29,2 30,5 31<\i{}C. horaria\i0{}, \i{}C. luctuosa\i0{},
\i{}C. macrura\i0{}, \i{}C. rivulorum\i0{}, \i{}C. robusta\i0{} (all
the Duns and Spinners colloquially named Anglers Curse)> 32<caenis> 
 
# \i{}Centroptilum\i0{} <Eaton>/
2,1/2 4,1<in males>/2<in females> 5<in the males,>,1 10,1 11,1 12,1
13,1 14,2 17,2/3<?> 20,1 24,1 25,1 26,2 28,2 29,1 30,2 31<\i{}C.
luteolum\i0{} (Small Spurwing or Pale Watery Dun, Small Spurwing male
Spinner, and Little Amber female Spinner), and \i{}C. pennulatum\i0{}
(Large Spurwing Dun and male Spinner, Large Amber female Spinner)>
32<centropt> 
 
# \i{}Cloeon\i0{} <Leach>/
2,1/2 4,2 10,1 12,2 13,2 17,2 18,1 20,1 24,1 25,1 26,2 28,2 29,1 30,2
31<\i{}C. dipterum\i0{} (Pond Olive or Lake Olive Dun, Pond Olive male
Spinner, Apricot Spinner female), and \i{}C. simile\i0{}> 32<cloeon> 
 
# \i{}Ecdyonurus\i0{} <Eaton>/
1<\i{}Ecdyurus\i0{} Eaton> 2,1/2 3,1<in males>/2<in females> 4,2 8,1
10,2 12,1 13,2 17,1 19,2 20,1 21,1 22,1 25,1 26,2 27,1 28,3 29,5 30,4
31<\i{}E. dispar\i0{} (Autumn or August Dun, Autumn or Red Spinners),
\i{}E. insignis\i0{} (Large Green Dun and Spinners), \i{}E.
torrentis\i0{} (Large Brook Dun and Spinners, or Great Red Spinner),
and \i{}E. venosus\i0{} (Late March Brown Dun and Spinners, or Great
Red Spinner)> 32<ecdyonur> 
 
# \i{}Ephemera\i0{} <Linnaeus>/
2,1/2 4,2 8,1 9,1 10,2 12,1 14,1 17,2/3 20,2 23,3 26,1 28,1 29,3 30,3
31<\i{}E. danica\i0{} (Mayfly or Green Drake Dun, Mayfly male Spinner,
and Mayfly, Spent Gnat or Black Drake female Spinner), \i{}E.
lineata\i0{}, and \i{}E. vulgata\i0{} (Drake Mackerel Dun and
Spinners)> 32<ephemera> 
 
# \i{}Ephemerella\i0{} <Walsh>/
2,1/2 4,2 10,2 12,1 14,1 17,2 20,2 23,3 25,2 26,2 28,2 29,4 30,2
31<\i{}E. ignita\i0{} (Blue Winged Olive or B.W.O. Dun and male
Spinner, Sherry Spinner female), and \i{}E. notata\i0{} (Yellow
Evening Dun and Spinners)> 32<ephemere> 
 
# \i{}Habrophlebia\i0{} <Eaton>/
2,1/2 4,1<in males>/2<in females> 5<in the males>,2 10,2 12,1 14,2
17,2 20,2 24,2 25,1 26,2 27,2 28,2 29,6 30,1 31<\i{}H. fusca\i0{}
(Ditch Dun and Spinners)> 32<habrophl> 
 
# \i{}Heptagenia\i0{} <Walsh>/
2,1/2 3,2 4,2 10,2 12,1 13,2 17,1 19,2 20,1 23,3 25,1 26,2 27,1 28,3
29,5 30,4 31<\i{}H. fuscogrisea\i0{} (Brown May Dun and Spinners),
\i{}H. lateralis\i0{} (Dusky Yellowstreak or Dark Dun, Dusky
Yellowstreak Spinners), \i{}H. longicauda\i0{}, and \i{}H.
sulphurea\i0{} (Yellow May Dun and Spinners)> 32<heptagen> 
 
# \i{}Leptophlebia\i0{} <Westwood>/
2,1/2 4,1<in males>/2<in females> 5<in the males>,2 10,2 12,1 14,1
17,2 20,2 23,1 24,2 25,1 26,2 27,2 28,2 29,6 30,2 31<\i{}L.
marginata\i0{} (Sepia Dun and Spinners), and \i{}L. vespertina\i0{}
(Claret Dun and Spinners)> 32<leptophl> 
 
# \i{}Paraleptophlebia\i0{} <Lestage>/
2,1/2 4,1<in males>/2<in females> 5<in the males>,2 10,2 12,1 14,1
17,2 20,2 23,2 24,2 25,1 26,2 27,2 28,2 29,6 30,3 31<\i{}P.
cincta\i0{} (Purple Dun and Spinners), \i{}P. submarginata\i0{}
(Turkey Brown Dun and Spinners), and \i{}P. werneri\i0{}> 32<paralept>
 
# \i{}Potamanthus\i0{} <Pictet>/
2,1/2 4,2 8,2 9,1 10,2 12,1 17,2/3 20,2 26,1 28,1 29,7 30,1<\i{}P.
luteus\i0{}> 32<potamant> 
 
# \i{}Procloeon\i0{} <Bengtsson>/
2,1/2 4,2 10,1 12,2 13,2 17,2 18,2 20,1 24,1 25,1 26,2 28,2 29,1 30,1
31<\i{}P. bifidum\i0{} (Pale Evening or Pale Watery Dun, Pale Evening
Spinners)> 32<procloeo> 
 
# \i{}Rhithrogena\i0{} <Eaton>/
2,1/2 3,1<in males>/2<in females> 4,2 10,2 12,1 13,2 17,1 19,2 20,1
21,1 22,2 23,3 25,1 26,2 27,1 28,3 29,5 30,2 31<\i{}R. germanica\i0{}
(March Brown Dun, March Brown or Great Red Spinner), and \i{}R.
semicolorata\i0{} (Olive Upright Dun, Yellow Upright Spinners)>
32<rhithrog> 
 
# \i{}Siphlonurus\i0{} <Eaton>/
1<\i{}Siphlurella\i0{} Bengtsson, \i{}Siphlurus\i0{} Eaton> 2,1/2 4,2
10,2 12,1 13,2 16,1 17,2 19,1 20,1 24,1 25,1 26,2 28,3 29,8 30,3
31<\i{}S. alternatus\i0{}, \i{}S.armatus\i0{} and \i{}S.
lacustris\i0{} (the Duns and Spinners all colloquially called Summer
Mayflies)> 32<siphlonu> 
