Longhorn Bees

Eucerini

Classification

Pronunciation

How to pronounce Eucerini: /juːˈsɛrɪnaɪ/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Florilegus condignus, U, face, District of Columbia, US National Arboretum, Valley West Plot 2013-04-19-14.58.09 ZS PMax (8691982921) by Sam Droege from Beltsville, USA. Used under a Public domain license.
Martinapis luteicornis, f, side, Cochise Co. AZ 2016-10-20-16.43 (30757247996) by USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA. Used under a Public domain license.
Eucera rosae, F, Face, MD, St Mary's County 2014-02-11-17.34.43 ZS PMax (12756650693) by USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA. Used under a Public domain license.
Florilegus condignus, U, back 1, District of Columbia, US National Arboretum, Valley West Plot 2013-04-19-14.37.44 ZS PMax (8948316937) by Sam Droege from Beltsville, USA. Used under a Public domain license.
Martinapis luteicornis, M, side, Wilcox, AL 2015-11-03-18.47.45 ZS PMax UDR (22914867951) by USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA. Used under a Public domain license.
Eucera rosae by USGS Native Bee Inventory and Monitoring Laboratory. Used under a Public domain license.

Summary

The Eucerini, or longhorn bees, represent the most diverse tribe within the family Apidae, with notable features such as long male antennae and unique nesting behaviors. They are solitary and typically nest in burrows in the ground, primarily serving as important pollinators.

Physical Characteristics

Hairy bees typically with pale hair bands on the metasoma. Males typically have very long antennae. Eucerini have long paraglossae that reach the base of the labial palpus and parocular carina. Their clypeus is protruding with no stiff hairs beside the margin of the inner eye; the top of the head is flattish or slightly concave, and the eyes appear bulging.

Identification Tips

Distinguishing characteristics include long paraglossae and the absence of stiff hairs beside the margin of the inner eye. Males can be identified by their unusually long antennae.

Habitat

Nests are vertical burrows in flat ground, typically in sandy or loose soil.

Distribution

Holarctic and Neotropical regions, with around 40 Afrotropical species and a few in Southeast Asia.

Diet

Nectar and pollen from various flowering plants.

Life Cycle

All species are solitary; many nest in large aggregations. They may form sleeping aggregations of males.

Reproduction

Nesting behavior involves individual females constructing nests in the ground and provisioning them with nectar and pollen for their offspring.

Ecosystem Role

Pollinators of flowering plants, contributing to ecosystem health and biodiversity.

Collecting Methods

  • Suction sampling
  • Netting
  • Ground excavation

Preservation Methods

  • Ethanol storage
  • Pinning
  • Slide mounting

Evolution

The classification within the tribe is complex, with ongoing taxonomic revisions. Many genera have been combined or reassigned due to poor characterization.

Similar Taxa

Misconceptions

Due to their physical characteristics, they may be confused with other similar-looking bee tribes, despite distinct differences in anatomy and behavior.

Tags

  • Eucerini
  • Longhorn Bees
  • Bees
  • Apidae
  • Insects