Friday, October 12, 2012

Native Bee Spotlight: Small Carpenter Bees ~ Ceratina spp.

Small Carpenter Bee
on Hepatica flower
Small Carpenter Bees ~ Ceratina spp.

In my landscape, I start to see Small Carpenter Bees in March when the first woodland ephemerals are blooming.

Small Carpenter Bees are very tiny, for identification I look for white markings on the face and a shiny blue-green to black body. Not all species have white on the face although.

Small Carpenter Bee on
Wild Geranium ~ Geranium maculatum
These native bees nest in cavities of plant stems. Females will chew holes through the center of soft, pithy wood and create a nesting cavity. The female "places herself as a guard at the entrance. She will die during the winter but remains in place to block the nest access." (Attracting Native Pollinators, p. 248.)

Small Carpenter Bee
visiting Virginia Waterleaf
Leaving dead plant material in your landscape standing helps provide habitat for cavity nesting bees. If you have Elderberry species, think of those soft wood branches that often die back significantly each season providing nesting habitat.

This Small Carpenter Bee is visiting a Bluestar flower (Amsonia spp.) looking for available nectar and pollen.

Small Carpenter Bees continue to visit my native perennials throughout the spring into July. Pictured here on Ohio Spiderwort (Tradescantia ohiensis).

Also Harebell (Campanula rotundifolia). Their small size gives them an all access pass to small open flowers.
Look for these bees also on Beardtongue (Penstemon spp.),
Butterfly Milkweed (Asclepias tuberosa),
Wild Petunia (Ruellia humilis),
and Prairie Coreopsis (Coreopsis palmata).

6 comments:

  1. I always learn something when I visit your blog. I had no idea such bees existed. I had always thought of carpenter bees as the big fuzzy ones (Xylocopa caffra) that abound in my garden. Apparently we do have some Ceratina species in Southern Africa, so I will now begin looking closer to see if any are in my garden. Thank you for your delightful photo's and information.

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    1. Thanks for your comment garden girl. I was just reading a blog from the Netherlands and the author was highlighting bees in her landscape. It's amazing the similarities in the Genera. I'll be you have some fascinating bee species in SA.

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  2. What an adorable bee and I think I found them in the hollow canes of the cut back hardy hibiscus a year or so back

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    Replies
    1. How cool Donna. I loved your leafcutter images, sounds like you have a ton of bee diversity and habitat in your garden.

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  3. I do have that book and read it last winter..I need to re-read it in the spring so I remember all this...Michelle

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    Replies
    1. It's a great book, and very helpful for sorting out what types of bees are visiting your landscape.

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