Small Carpenter Bee
( Ceratina sp. )


2014-0601-01100108-HYM02092-Ceratina_sp[1147h00s,F,A,plant-grasslands]{BWurzburg}-G.jpg

PHOTO COMMENT

IDENTIFICATION
Identification:Ceratina sp.
(Latreille ,1802 )
Common Name:Small Carpenter Bee
Life Stage:(A) adult

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Holometabola
Order:Hymenoptera
Suborder:Apocrita
Family:Apidae
Subfamily:Xylocopinae
Tribe:Ceratinini
Genus:Ceratina
Taxon Code:HYM02092
ITIS/TSN:154390

LOCATION DETAILS
Location Name
Knowland Park, Knowland Park, Oakland
County:Alameda County
ECI Site#:CA01100108

RECOGNITION
Description
These are common bees that are mostly black, but may have brilliant tones. The thorax and legs are covered with fine setae.
Sexes
Males have larger white markings on the face.
Body Length
Less than 8 mm.
Diversity
24 Species in 4 subgenera in America north of Mexico. 351 Species in 22 subgenera worldwide.
Similar Taxa
Locally, Ceratina spp. are similar to several other groups of bees: Large Carpenter Bees (Xylocopa spp.), to which they are closely related, an which also nests in wood, but which is 20 mm or longer and more robust; Mason Bees (Osmia spp.), to which they share a superficial resemblance, but Mason Bees are larger and more robust; and Sweat Bees (Halictidae), which is slightly larger, but also metallic in color with similar wing venation. Wing Venation: In Ceratina spp. The second submarginal cell is about as high as wide basally; in Xylocopa it is about half as high as wide basally. Mouthparts: Ceratina spp. Does not have the long glossa of the Halictidae. Abdomen: Club-shaped, a dull metallic color with inconspicuous setae.

BIOLOGY
Food
Pollen stores provided by females are fed upon by both the developing brood and adult.
Nesting Preferences
Adult females overwinter in the pith (soft center) of stems that are exposed by pruning, breaks or burns. In the spring females excavate further, turning their winter chamber into a brood nest. Nests are provisioned with pollen. Plants used for stem nesting commonly include rose and fennel.
Distribution
Worldwide.
Diversity
24 Species in 4 subgenera in America north of Mexico. 351 Species in 22 subgenera worldwide.

CREDITS
Photographer
Beth Wurzburg

References
Genus Ceratina - Small Carpenter Bees. (bugguide.net/node/view/15027). Accessed May 31, 2016. .
ITIS.
Small Carpenter Bees (Genus Ceratina). (https://www.inaturalist.org/taxa/155108-Ceratina). Accessed May 31, 2016.


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