Greater Bee Fly
( Bombylius major )


2014-0420-EB550147-DIP01969-Bombylius_major[1037h11s,T,A,dorsum]{EXD}-G.jpg

PHOTO COMMENT

IDENTIFICATION
Identification:Bombylius major
(Linnaeus ,1758 )
Common Name:Greater Bee Fly
Life Stage:(A) adult

PHYLOGENY

Phylum:Arthropoda
Class:Insecta
Superorder:Holometabola
Order:Diptera
Suborder:Brachycera
Family:Bombyliidae
Subfamily:Bombyliinae
Tribe:Bombyliini
Genus:Bombylius
Taxon Code:DIP01969
ITIS/TSN:134502

LOCATION DETAILS
Location Name
Tilden Regional Park, Tilden Regional Park, Tilden Regional Park, Berkeley
County:Alameda County
ECI Site#:CAEB550000
Open Space Location:Tilden Regional Park

RECOGNITION
Wingspan
Up to 25 mm.
Body Length
12-18 mm.
Colors
Color1: brown Color2: black

BIOLOGY
A common and widespread bee fly, often seen taking nectar on early spring wildflowers or seen hovering in sunny patches in woodlands.
Food
Adults take nectar from flowers of herbaceous plants. Larvae are parasitoids of the larvae of solitary bees, solitary wasps and some beetle larvae.
Habitat
Woodlands and wood edges.
Importance
B. major is an excellent pollinator, but limits the populations of other pollinators.
Distribution
Throughout most of North America and Eurasia.
Flight Period
March to June, but most common in April.
Importance
B. major is an excellent pollinator, but limits the populations of other pollinators.
Development
The eggs are flicked by the adult female toward the entrance of the underground nests of solitary bees and wasps. Or, eggs may be laid on flowers the insects visit. After hatching, the larvae find their way into the nests to feed on the developing larvae and pollen stores.

CREDITS
Photographer
Eddie Dunbar
Insect Sciences Museum of California

References
Species Bombylius major - Greater Bee Fly. (bugguide.net/node/view/14997). Accessed March 13, 2017. .
ITIS.
Bombylius major. (https://en.wikipedia.org/wiki/Bombylius_major). Accessed March 13, 2017.


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