Contents: By Damage and Image
(In progress)
Contents: Alphabetical
alder flea beetle
aphid management
apple and thorn skeletonizer
apple ermine moth
ash whitefly new
azalea bark scale
azalea lace bug
azalea sawfly new
bark lice
Barypeithes root weevil updated
Beneficial nematodes
biocontrol of root weevils
birch aphid updated
black bean aphid new
black cherry aphids new
black stem borer
bluegum psyllid
branch and twig borer
brown marmorated stink bug

bronze birch borer
boxwood leafminer
boxwood psyllid updated
bulb flies
cabbage whitefly new
carpet beetle (images)
Calligraph californica

Ceanothus stem gall moth
cereal leaf beetle
cherry ermine moth
chilli thrips
cinnabar moth
clay colored weevil
cottony camellia scale
cypress tip moth
dogwood sawfly
Douglas fir sawfly
Douglas fir twig weevil
dustywings new
elm leafminer
European pine shoot moth
European wool carder bee
emerald ash borer
Fall webworm
flatheaded cedar borer
ground beetle gallery new
hollyhock weevil
honeylocust plant bug
honeylocust pod gall midge
Heliothis phloxiphaga
holly bud moth
huckleberry root aphids
ground mealybug
Japanese beetle new
lacewings new
lady beetle gallery updated
leaf weevil
light brown apple moth
maple aphids updated
maple tip moth
maple midge
March flies updated
mountain ash sawfly
Narcissus bulb fly updated
Natural enemies gallery new
spruce twig aphid
oak ambrosia beetle
oak slug
oak twig gall wasp new
obscure root weevil
Pacific flatheaded borer
peach tree borer
peach twig borer
pear blight beetle updated
pear psylla
pear leaf-curling midge
pear sawfly
pine needle scale
pine and cone spittlebug new
poplar and willow borer
Psyllopsis fraxinicola updated
rose curculio weevil
rose midge
rove beetle gallery new
sequoia pitch moth
soldier beetle galleryn new
snakefly gallery new
speckled green fruitworm
meadow spittlebug updated
tent caterpillars
viburnum leaf beetle
violet gall midge
western poplar clearwing
western spotted cucumber beetle
white pine weevil updated
woolly ash aphid
woolly beech aphid updated

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March flies

Not considered a nursery production pest, March flies, Bibio albipennis and Bibio xanthippes, are found on occasion in large numbers in production areas. What we call March flies are in the familiy Bibionidae (in some parts of the world March flies refer to Tabanid flies, which are biting flies). These flies are dimorphic, the males and females differing in appearance. They are often found joined together. This gave rise to the common name of love bugs for a similar species, Plecia sp., found in the south. For our area, March fly is a misnomer as they are usually found in April and May in Western Oregon.

More information can be found at the following websites:

Colorado Insects of Interest: March Flies Colorado State University

North Carolina State University: Department of Entomology Insect Notes: March Flies.

Brisbane Insects: March Flies. Nice images of March Flies at this site.

Original publication: 5/4/2006
Most recent update. 4/18/2016

Author: R.L. Rosetta, Extension Nursery Integrated Pest Management, Department of Horticulture, Oregon State University

Male March fly, Bibio albipennis
Male March fly
Photo: Key Gray
B. albipennis larva
March fly larva
Photo: Ken Gray
Female March fly, Bibio xanthippes
Female March fly
Photo: Ken Gray
Male March fly, Bibio xanthippes
Male March fly
Photo: Ken Gray
March fly, Bibio xanthippes
March fly larva Photo: unknown
March flies are also known as Love bugs
Love bugs March flies
Photo: Eric Smith

Male March fly on a pear leaf
male March fly on a pear leaf

Website editor:
Robin Rosetta

Page last modified 4/18/16


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