| Drunella | Fore femora broad with teeth on anterior margins, if not, head and thorax with paired dorsal tubercles. | Terminal segment of claspers 2x as long as broad. |
Drunella coloradensis
(Colorado Mayfly; Dark Olive Dun; Lesser Green Drake; Light Slate-winged Olive; Autumn Green Drake; Slate-winged Olive; Small Western Green Drake; Western Green Drake; Dark Brown Spinner. ) | larva (nymph)
Copyright © 2011 Bob Newell |
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| | Abdomen dark olive to brownish black; thorax a shade lighter; no head projections; pointed abdominal tubercles, tiny compared to grandis or spinifera; femurs with bumps; gills all similar in size; dark tail band mid-length. | Body dark olive brown; wings dark gray; 3 tails; length 12-13 mm.; emerges Jul 20 - Aug 10. |
Drunella doddsii
(Dark Blue-winged Red Quill; Ginger Quill; Green Drake; Western Green Drake. ) | mature larva (nymph)
Copyright © 2011 Jason Neuswanger |
| subimago (dun) - male
Copyright © 2011 Jason Neuswanger |
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| | Body flattened; abdomen yellowish brown, w/o tibercles; thorax often lighter; head w/incomplete frontal shelf; ring of fine hairs encircling underside of abdomen; gills of similar size starting on seg. 3 . | Body: reddish to dark olive brown Wings: medium gray Length: 13 mm. Tails: 3 Emergence: Jul 10-30. |
Drunella flavilinea
(Flav; Lesser Green Drake; Slate-winged Olive; Slate-winged Olive Dun; Blue-winged Olive Dun; Dark Olive Spinner; Western Slate Olive Dun; Western Green Drake; Small Western Green Drake; Dark Rusty Spinner; Dark Olive Spinner. ) | | subimago (dun) - male
Copyright © 2006 Arlen Thomason |
imago (spinner) - male
Copyright © 2006 Arlen Thomason |
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| | Abdomen dark olive to brownish black; thorax a shade lighter; no head projections; pointed abdominal tubercles, tiny compared to grandis or spinifera; femurs with bumps; gills are all similar in size; dark tail band mid-length. | Body dark olive; wings medium gray; length 7-10 mm.; 3 tails; emerges Jul 20 - Aug 10. |
Drunella grandis flavitincta
(Western Green Drake. ) | nymph
Copyright © 2009 Roger Rohrbeck |
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Drunella grandis ingens
(Western Green Drake) | larva (nymph)
Copyright © 2007 Bob Newell |
| subimago (dun) - male
Copyright © 2010 Bob Newell |
imago (spinner) - female
Copyright © 2010 Bob Newell |
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| Drunella pelosa | nymph
Copyright © 2011 Bob Newell |
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| | Zebra-like black and white color pattern; pad of fine hairs on underside of abdominal segments 3-8; fringes of long, fine hairs on legs, tails, and body. | . |
Drunella spinifera
(Small Western Green Drake. ) | nymph
Copyright © 2011 Joseph Fortier |
| subimago (dun) - female
Copyright © 2007 Bob Newell |
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| | Femora of front legs very broad, but don't have bumps on front edge; long sharp tubercles on back of head; abdominal tubercles 8-9 more than twice as long as 2-7. | Body dark reddish brown; wings reddish brown; 3 tails; emerges Aug - Sep, late afternoon - early evening. |