masked bees

(Hylaeus spp.)

Overview
masked bee (Hylaeus sp.)
Photo by Alfredo Colon
 

Hylaeus is a species of small bees known as yellow-faced bees or masked bees. There are 739 Hylaeus species worldwide, 51 species in North America north of Mexico, and at least 12 species in Minnesota.

Adults feed on flower pollen and nectar. Many species are probably host species specialists.

 
           
 
Description
 
 

Hylaeus are small, slender bees. Adults are 3 16 to ¼ (5 to 7 mm) in length. They are mostly black with white or yellow markings on their faces and legs. They have very little hair and no pollen-collecting hairs (scopa). In these respects they look more like wasps than bees.

 
     
 
Distribution
 
 

Distribution Map

 

Sources

4, 24, 27, 29, 30, 82.

 
  9/3/2023      
         
 
Taxonomy
 
 

Order

Hymenoptera (ants, bees, wasps, and sawflies)  
 

Suborder

Apocrita (narrow-waisted wasps, ants, and bees)  
 

Infraorder

Aculeata (ants, bees, and stinging wasps)  
 

Superfamily

Apoidea (bees and apoid wasps)  
  Epifamily Anthophila (bees)  
 

Family

Colletidae (plasterer bees)  
 

Subfamily

Hylaeinae  
       
 

This genus was previously classified as Prosopis. The genus was revised and split into six subgenera, including a new subgenus Prosopis.

 
       
 

Subordinate Taxa

 
 

annulate masked bee (Hylaeus annulatus)

cinquefoil yellow-faced bee (Hylaeus basalis)

eastern yellow-faced bee (Hylaeus affinis)

Florida masked bee (Hylaeus floridanus)

Mesilla yellow-faced bee (Hylaeus mesillae)

modest masked bee (Hylaeus modestus modestus)

rudbeckia yellow-faced bee (Hylaeus rudbeckiae)

sanicle yellow-faced bee (Hylaeus saniculae)

slender-faced yellow-faced bee (Hylaeus leptocephalus)

vertical yellow-faced bee (Hylaeus verticalis)

yellow-faced bee (Hylaeus fedorica)

 
       
 

Synonyms

 
 

Calloprosopis

Pharohylaeus

Prosopis

 
       
 

Common Names

 
 

masked bees

yellow-faced bees

 
 

The common name “yellow-faced bees” is a misnomer. All species have markings on the face, but on many species the markings are white.

 

 

 

 

 

 

 

Glossary

Scopa

A brush-like tuft of hairs on the legs or underside of the abdomen of a bee used to collect pollen.

 

 

 

 

 

 
 
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Alfredo Colon

 
    masked bee (Hylaeus sp.)   masked bee (Hylaeus sp.)  
           
 
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Other Videos
 
  Mating behavior of Masked Bee Hylaeus
Karl Foord
 
   
 
About

Published on Oct 21, 2016

 
  Yellow-faced bees (Hylaeus) on naupaka kahakai
Kimberley Greeson
 
   
 
About

Published on Mar 7, 2017

 
  Native bee species now protected under Endangered Species Act
KHON2 News
 
   
 
About

Published on Sep 30, 2016

Seven yellow-faced bee species are now under protection, a first for any bees in the nation.

 

 

Camcorder

 
 
Visitor Sightings
 
           
 

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  Alfredo Colon
8/24/2022

Location: Albany, NY

masked bee (Hylaeus sp.)

 
  Alfredo Colon
6/8/2018

Location: Woodbury, MN

masked bee (Hylaeus sp.)

 
           
 
MinnesotaSeasons.com Sightings
 
 

 

 

 

 

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Created 8/28/2018

Last Updated:

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