Mason Bee
( Osmia sp. )


2009-0420-NF050003-HYM00854-Osmia_sp[1604h00s,F,A,plant-holly]{EXD}-G.jpg

PHOTO COMMENT
Metallic Leafcutter Bees are common in forested areas and gardens. Females of these solitary bees nest using mud or bits of plant fiber chewed into a paste. Nests are made in soil, hollow plant stems, or preexisting cavities, including empty snail shells or tunnels from other insects bored into wood. Exposed surfaces may also be used. Females line nest tunnels with bits of chewed leaves or clay. These are colorful bees, many species are metallic green or bluish. The head, thorax and abdomen may be punctate (having numerous pits). Most of these stout bees are smaller than honeybees. The abdomen undersides are covered with dense setae (hairs), that are used to carry pollen. Adults are active from early-late spring through the early summer. These bees possess a sting but do not sting in defense of their nest.

IDENTIFICATION
Identification:Osmia sp.
(Panzer, 1806)
Common Name:Mason Bee
Life Stage:(A) adult

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Holometabola
Order:Hymenoptera
Suborder:Apocrita
Family:Megachilidae
Subfamily:Megachilinae
Tribe:Osmiini
Genus:Osmia
Taxon Code:HYM00994
ITIS/TSN:154377

LOCATION DETAILS
Location Name
Klamath NF, Klamath NF,
County:Siskiyou County
ECI Site#:CANF050000
Park/Forest Code:Klamath NF

RECOGNITION
Recognition
"Metallic green, blue or blue-green, with short, robust body."
Description
Metallic green, blue or blue-green, with short, robust body.
Body Length
5-15 mm

BIOLOGY
Food
Many species visit Vaccinium, including blueberries, and other Ericaceae.
Range
Holarctic, with 1 sp. ranging into the Neotropics.
Active Period
Most species early-late spring, a few active in summer.
Development
Variety of nesting; some excavate in the soil, others use hollow stems. They partition the cells with walls made of clay or other materials.

CREDITS
Photographer
Eddie Dunbar
Insect Sciences Museum of California

References
BugGuide .
ITIS ITIS TSN#.


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