Miniature Blue-Winged Olives

Mayflies

Caddisflies

Stoneflies

Scientific Name

Match	Scientific Name
	Acentrella

This common name refers to only one genus.

Mayfly Genus Acentrella

These are pretty much always called Miniature Blue-Winged Olives.

The only Acentrella species known to be important to anglers is Acentrella turbida. See its species page for distribution and timing details.

Female Acentrella (Miniature Blue-Winged Olives) Mayfly Dun

View 3 PicturesI've lost the date information for this specimen and taken a guess.

Collected August 1, 2004 from in
Added to Troutnut.com by on January 25, 2006

Male Acentrella turbida (Miniature Blue-Winged Olive) Mayfly Spinner

View 3 PicturesI would not like to have to match this hatch. These are the smallest mayflies I have ever seen. I used to think Caenis was the smallest adult mayfly in the west but these guys are about 4mm long. The male eyes are two toned, brown above and olive below. The abdomen is dark brown interspersed with light brown. The abdomen is clear for the anterior (Anterior: Toward the front of an organism's body. The phrase "anterior to" means "in front of.") 2/3rd and the remainder is white. The tails are twice as long as the insect. There is only one pair of wings.

Collected July 27, 2011 from in
Added to Troutnut.com by on July 27, 2011

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