Attenella | | subimago - female
![](http://bugguide.net/images/raw/PQV0PQ108QY0VQ1K5KJ05Q6K6QC0PQ10RKPK4QF0UQAKHKUKEQNKQKB0ZKO0EQT0GQPKGQO0VQAKNQ.jpg) Copyright © 2010 Phil Huntley-Franck |
|
Attenella | Tarsal claws w/denticles; gills start on abdominal segment 4, all similar in size; gills on ab. seg. 4 not (or partially) covering succeeding pairs, paired dorsal tubercles present on ab. segs.; all femora similar; all tails similar. | Terminal segment of claspers 6x as long as broad. |
Attenella delantala | larva (nymph)
![](http://www.flyfishingentomology.com/forum/ForumPhotos/Taxon23.jpg) Copyright © Roger Rohrbeck | | |
| Blunt, rounded tubercles that curve outward on top of abdominal segments 4-8; tubercles on segment 8 are particularly broad and give that part of abdomen a flattened, platform appearance. | . |
Attenella margarita (Little Western Blue-winged Olive; Little Blue-winged Olive; Small Blue-winged Olive; Margaret's Mayfly. ) | larva (nymph)
![](data:image/jpeg;base64,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) Copyright © 2009 D.S. Chandler | | subimago (dun) - female
![](http://www.troutnut.com/im_regspec/picture_2523_large.jpg) Copyright © 2006 jason Neuswanger |
|
| Small, slightly pointed tubercles on abdominal segments 3-9; abdominal segments 4,5 & 8 pale. | Body medium olive; wings medium gray; length: 6 mm.; 3 tails; emergences Aug 1 - Sep 10. |