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    The Big Oak Flat Road between Crane Flat and the El Portal Road is temporarily closed. There is no access to Yosemite Valley via the Big Oak Flat Road or Highway 120. Tioga Road is open and accessible via Big Oak Flat and Tioga Pass Entrances. More »

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Wildlife and Other Sightings: Convergent Lady Beetle

September 08, 2012 Posted by: AH - Mather District Interpretive Ranger
Convergent Lady Beetle

Hippodamia convergens
Aphids on Aster  Convergent Lady Beetle

September 2, 2012
Trail from White Wolf to Lukens Lake

While walking the trail to Lukens Lake and trying to key out some purple flowers in the Aster family (there are a lot of species that look very similar and they are difficult to distinguish from one another), I noticed that the flower stalk of one was covered with tiny green aphids (photo on left). Aphids dine on the vascular juices of plants. A mile or so down the trail, a small red spot caught my eye on a purple aster that was a bit beyond its prime…a convergent lady beetle (photo on right)! Convergent lady beetles dine on aphids, though I didn't see any aphids near this particular beetle. They are the most common "ladybug" in the United states but they got their name for their habit of congregating by the thousands in places like the Sierra Nevada high country for a long hibernation (up to nine months)! I didn't see any other lady beetles along the trail today and this is the first one I've noticed on my weekly walks of this trail this season.


1 Comments Comments Icon

  1. A1JaipurFlowers - Jaipur, Rajasthan
    February 07, 2013 at 12:31

    very very lovely...


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Did You Know?

View of Yosemite Valley from the Wawona Tunnel Vista.

Rockfall events have helped shape many of the outstanding features along Yosemite Valley's walls, including Royal Arches, North Dome, and Half Dome. Giant talus slopes that slant away from the Valley walls accumulate debris with each rockfall event.