trans1_small
University of Arizona
When autocomplete results are available use up and down arrows to review and enter to select.
  • Home
  • Pest Identification
    • Pest Identification Home
    • Diseases
    • Weeds
    • Insects
    • Pest Diagnostics
    • Pest Identification - Outputs
    • Events
    • Frequently Asked Questions
  • Agricultural IPM
    • Agricultural IPM Home
    • Vegetables
    • Field Crops
    • Other Crops
    • Agricultural Pesticide Safety
    • Agricultural IPM Outputs
    • Events
    • Frequently Asked Questions
  • IPM Assessment
    • IPM Assessment Home
    • Crop Pest Losses
    • Impacts
    • EPA Pesticide Registration Reviews
    • How To Submit Comments to EPA
    • Previously Submitted EPA Comments
    • Projects
    • IPM Assessment Outputs
    • Frequently Asked Questions
  • Community IPM
    • Community IPM Home
    • School IPM
    • Public Health IPM
    • Turfgrass
    • Community Pesticide Safety
    • Community Insect Gallery
    • Handbook on Pests
    • Home and School IPM Newsletters
    • Community IPM Resources
    • Events
    • Frequently Asked Questions
  • Pesticide Education and Training
    • Pesticide Education and Training Home
    • Ag Licensing Resources
    • Community Licensing Resources
    • Special Pesticide Registrations
    • Pesticide Safety Outputs
    • Events
    • Frequently Asked Questions
  • About Us
    • Partners and Links
    • Contact Us
    • Organizational Chart
    • Arizona Pest Management Center
    • Mission
    • Working Groups
    • Organization
    • Social Media
  • Home
  • Pest Identification
    • Pest Identification Home
    • Diseases
      • Publications And Resources
      • Photo Gallery
    • Weeds
      • Sample Submissions
      • Publications And Resources
      • Noxious Invasive Weeds
      • Weed Photo Gallery
      • Herbicide Injury
    • Insects
      • Sample Submissions
      • Publications And Resources
      • Insect Collection
      • Photo Gallery
      • Insect Injury
      • Community Insect Gallery
    • Pest Diagnostics
      • Herbicide Injury
      • Insect Injury
      • Publications And Resources
      • Photo Gallery
    • Pest Identification - Outputs
      • Presentations
      • Publications
      • Shorts
      • Medias
    • Events
    • Frequently Asked Questions
  • Agricultural IPM
    • Agricultural IPM Home
    • Vegetables
      • Lettuce
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Melons
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Cole Crops
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Spinach
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
      • Vegetable Outputs
        • Presentations
        • Publications
      • VIPM Updates
      • VIPM Archive
      • Vegetable Video Archive
      • VIPM Update Cartoons
      • Events
    • Field Crops
      • Alfalfa
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Corn and Sorghum
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Cotton
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Guayule
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Small Grains
        • Crop Management
        • Soil Management
        • Irrigation
        • Varieties
        • Insects
        • Diseases
        • Weeds
        • Pesticide
      • Risk Reduction
      • Outputs
        • Publications
        • Presentations
        • Videos
      • Events
      • Field Crops IPM Shorts
    • Other Crops
      • Citrus
      • Tree and Nut Crops
      • Cross Commodity
    • Agricultural Pesticide Safety
    • Agricultural IPM Outputs
      • Presentations
      • Publications
      • Agricultural IPM Shorts
    • Events
    • Frequently Asked Questions
  • IPM Assessment
    • IPM Assessment Home
    • Crop Pest Losses
      • Cotton Pest Losses
      • Vegetable Pest Losses
    • Impacts
    • EPA Pesticide Registration Reviews
    • How To Submit Comments to EPA
    • Previously Submitted EPA Comments
    • Projects
      • Crop Pest Losses
    • IPM Assessment Outputs
      • Presentations
      • Publications
      • Shorts
    • Frequently Asked Questions
  • Community IPM
    • Community IPM Home
    • School IPM
      • Stop School Pests
      • IPM for Sensitive Sites in the Built Environment
    • Public Health IPM
      • Arizona Conenose Bugs
      • Bed Bugs
      • Bees
      • Body Lice
      • False Chinch Bugs
      • Fire Ants
      • Head Lice
      • Longhorned Tick
      • Mosquitoes
      • Scorpions
      • EPA Border 2020
    • Turfgrass
      • Pre-emergence Weed Control - Lawns
      • History of the Lawn and Turfgrass
      • Nitrogen and Iron Deficiencies
      • Publications and Resources
    • Community Pesticide Safety
      • Presentations
      • Publications
    • Community Insect Gallery
    • Handbook on Pests
    • Home and School IPM Newsletters
    • Community IPM Resources
    • Events
      • 2021 Emergency Preparedness Workshop
      • 2022 Emergency Preparedness Workshop
    • Frequently Asked Questions
  • Pesticide Education and Training
    • Pesticide Education and Training Home
    • Ag Licensing Resources
    • Community Licensing Resources
    • Special Pesticide Registrations
    • Pesticide Safety Outputs
      • Presentations
      • Publications
      • Pesticide Safety Shorts
    • Events
    • Frequently Asked Questions
  • About Us
    • Partners and Links
    • Contact Us
    • Organizational Chart
    • Arizona Pest Management Center
    • Mission
    • Working Groups
    • Organization
    • Social Media
  1. Pest Identification
  2. Pest Diagnostics
Pest Diagnostics
Plant Injury 
Insect Injury
Information insect pests and injuries they can inflict upon plants
WeedIdentification 
Herbicide Injury
Information about some of the injuries that can be inflicted by herbicide
icon20 
Photo Galleries
Photo galleries about insect and herbicide injuries.
Publication 
Pest Diagnostic Resources
Publications and Presentations
Pest Diagnostic Publications
Publication View
Arizona Bee Identification Guide
No Date Available
View Publication PDF (PDF, 1 MB)
Authors: Stephen L. Buchmann, Stacey Bealmear, Scott Prajzner, Vicki Wojcik

Bees provide essential ecosystem services in natural and agricultural landscapes as pollinators of three-quarters of flowering plants and as soil-builders. For people, this means every third bite of food along with fibers, nutrients and beverages is the result of pollination. Plants rely on pollinators to reproduce and set seed. Honey bees pollinate crops, but native bees also have a role in agriculture and they are essential for pollination in natural landscapes. There are 1,300 native species of ground-nesting, twig-nesting and parasitic bees found within Arizona. This guide gives information for identifying 10 major groups of bees commonly observed in Arizona including key characters, sizes (in mm), nesting habits, floral preferences, and distinctive behaviors.

Bee Identification
Bees, like other Hymenoptera, have three body segments; a head, thorax, and abdomen. The head has the compound and simple eyes, segmented paired antennae, and mouthparts including mandibles for biting, and the proboscis for drinking nectar. The thorax bears the legs and four wings (two forewings and two hind-wings coupled by tiny hooks). The abdomen contains digestive organs and the sting in females. 

Bees


Female bees have special pollen-carrying hairs (scopa) usually on the legs, or in the case of leafcutters, under the abdomen. Honey bees and bumble bees carry pollen packed tightly into a ball on pollen baskets (corbiculae), concave areas on their hind legs. 

Leafcutter and Mason bees
(Megachile and Osmia spp.) Family: Megachilidae. Head as broad as thorax; large mandibles; black body with pale bands on abdomen (metallic green or blue for Osmia); scopa under abdomen; 7 - 20 mm. Solitary, nest in beetle holes or wood nesting blocks, some in soil. Female Megachile cut circular pieces from leaf margins to form larval cells. Other species collect mud (Osmia) or resin as nesting materials. 
Bees_1
Bees_2

Bumble bees (Bombus and Psithyrus spp.)
Family: Apidae. Robust, hairy colorful bees; black body covered with black, yellow, orange or whitish hair bands; pollen baskets on hind legs; 10 – 28 mm. Bumble Bees live in social colonies; nesting underground, under boards or rodent burrows. They buzz pollinate flowers like tomatoes, which have pored anthers. 

Bees_3
Bees_4


Honey bees (Apis mellifera)
Family: Apidae. Triangular - shaped head; black eyes and dark legs, golden brown hairs; orange abdomen with black stripes; concave areas, pollen baskets on hind legs; 15 - 19 mm.

Bees_5


Large social colonies, 30,000 or more; live in manmade hives, tree hollows or rock outcrops. If you use a hand lens and look closely, honey bees actually have hairy eyes.

Sweat bees (Agapostemon, Augochlorella, and Halictus spp.)
Family Halictidae. Diverse group including small brown or black bees with abdominal bands to vividly colorful metallic green and yellow. Pollencarrying hairs on hind legs; 3 - 12 mm. Parasitic forms often have red abdomens and lack pollen carrying hairs. Solitary, communal and semisocial soil nesters; some are attracted to salt in your sweat. 

Bees_6
Bees_7


Mining bees (Andrena and Perdita spp.)
Family: Andrenidae. Black or dull metallic body often with brown or reddish hairs; usually elongate; scopa on upper regions of legs; 6 - 15 mm. Perdita diverse genus, bright yellow, black and whitish bees; 2 - 7 mm. Solitary or communal (some Macrotera spp.), nest in sand soils. Females have depressions (fovea) along their eyes that glisten due to short velvety hairs. 

Bees_8
Bees_9


Long-horned bees (Melissodes, Svastra, and Synhalonia spp.)
Family: Apidae. Usually robust and very hairy, dark body often with pale hair bands on abdomen; dense scopa on hind legs; males have very long antennae, as long as body; 7 – 20 mm. Solitary to communal ground nesting bees. Some genera and species are especially attracted to asters, sunflowers and mallows.

Bees_10
Bees_11


Squash bees (Peponapis and Xenoglossa spp.)
Family: Apidae. Honey bee-sized (Peponapis) brownish bees with light spot on face; often long sharp mandibles; males with long antennae. They specialize on pollen and nectar of wild gourds and cultivated pumpkins; 14 - 18 mm. Solitary; ground-nesting often in pumpkin fields. Coarse dense scopa on hind legs. 

Bees_12
Bees_13


Carpenter bees (Xylocopa spp.)
Family: Apidae. Shiny dark black bees (golden green-eyed males in one species); sparse hairs on abdomen; robust with massive jaws; scopa on hind legs; 20 - 28 mm. Solitary to communal nest in dead tree trunks, Agave, Yucca and Sotol stalks. Other than bumble bee queens, the largest bees in AZ. 

Bees_14
Bees_15


Yellow-faced or masked bees (Hylaeus spp.)

Family: Colletidae. Slender; almost hairless black bees with scattered yellow markings. Bright facial stripes; no scopa as they carry pollen internally in the crop, sometimes called the honey stomach; 5 - 7 mm. Other bees in this family (Colletes spp.) are larger, fuzzy gray with distinctive heartshaped heads. Solitary bees; nesting in dead twigs and stems and beetle burrows.

Bees_16
Bees_17


Cuckoo bees (Nomada and Triepeolus spp.)
Family: Apidae. Slender and wasp-like; often with few hairs (will be branched hairs); red or black or yellow body, banded abdomens; Triepeolus is black and white with red legs; relatively thick antennae; no scopa; 5 - 18 mm. Males and females visit flowers for nectar but do not collect pollen. Females are cleptoparasites of other bees, laying their eggs in another bee’s nest. At least 10% of all Arizona bees are parasitic. 

Bees_18
Bees_19


A Bee or Not a Bee?
There are two kinds of insects that are often confused with bees -- flies and wasps. Many flower-visiting flies (e.g. the Syrphidae) are bee and wasp mimics in color, form and actions. By mimicking bees and wasps in appearance, they gain protection from predators. So, how do you tell these pollinators apart?
Fly Identification: Flies have only one pair of wings, while bees have four wings. Flies usually have short, stubby antennae with single hairs, or feathery antennae. They have piercing/sucking or sponging mouthparts. Many flies have huge eyes that meet at the top of their heads.
Wasp Identification: Wasps have four wings, chewing mouthparts, a sting in females, and long antennae. One hair character sets bees apart from wasps. When magnified, bee hairs are branched (plumose) not simple and straight like those on wasps. Bees are also usually hairier and more robust than wasps. Think of a “wasp waist” a constriction in the petiole than many wasps have. Wasps never have pollen-carrying hairs (although masarid wasps feed on pollen). Wasps are carnivorous predators or parasites.

View All Pest Diagnostic Publications
Pest Diagnostic Presentations
  • May 2020
    Topguard Evaluations in Cotton 2019 Review
    Authors: Randy Norton, Blase Evancho
  • May 2020
    Control Options for Pests in Arizona Cotton Systems
    Authors: Randy Norton
  • Feb 2018
    Protection of the Pesticide Applicator
    Authors: Wierda, M.
  • Nov 2017
    Pesticide handling and personal protection equipment
    Authors: Wierda, M.
  • Sep 2009
    2009 Cotton Pest Management Field Tour - Whitefly, Lygus & Mite Control Product Performance
    Authors: Ellsworth, P.

View All Pest Diagnostic Presentations
APMC Logo BW Inverted
CALS Logo Black and white Inverted
ARIZONA PEST MANAGEMENT CENTER
University of Arizona
College of Agriculture and Life Sciences
Maricopa Agricultural Center

37860 W. Smith-Enke Road
Maricopa, AZ 85239
FULL CONTACT
LIST
facebook
twitter


© Arizona Board of Regents

University Privacy Statement