Lasioglossum pectoraloides

(Cockerell, 1895)

Shiny-breasted Sweat Bee

Lasioglossum pectoraloides is a of sweat bee in the Halictidae, first described by Cockerell in 1895. It belongs to one of the largest of bees, with over 1,700 species. Like other members of its genus, it is a solitary or semi-social ground-nesting . The species occurs in North America and Middle America.

Pronunciation

How to pronounce Lasioglossum pectoraloides: //læsiˈoʊɡlɔsəm pɛktɔrəˈlɔɪdiːz//

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

Identification

Lasioglossum are notoriously difficult to identify to species level, often requiring microscopic examination of morphological features. L. pectoraloides is part of the subgenus Dialictus, which contains many small, metallic or non-metallic species. The specific epithet "pectoraloides" suggests a resemblance in the thoracic (pectoral) region to another species or type. Accurate identification typically requires examination of diagnostic features such as facial fovea structure, punctation patterns on the mesoscutum and scutellum, and male genitalia.

Distribution

North America and Middle America. GBIF records indicate presence in both regions.

Behavior

As a member of Lasioglossum, likely exhibits typical sweat bee including ground nesting and flower visitation for pollen and nectar collection. Many Lasioglossum are known to visit flowers of prairie clovers (Dalea spp.) and other native plants.

Ecological Role

As a , contributes to plant through pollen transfer. Like other wild bees, participates in functioning and may contribute to crop pollination services, though specific contributions of this are not documented.

Human Relevance

Like other sweat bees, may be attracted to human perspiration for salts and minerals. Not considered a significant pest; stings, if they occur, are generally mild. Contributes to biodiversity and .

Similar Taxa

  • Other Lasioglossum (Dialictus) speciesMembers of subgenus Dialictus are morphologically similar small sweat bees, often requiring expert examination for reliable separation.
  • Halictus speciesMedium-sized brown or blackish sweat bees with white abdominal bands; can be confused with non-metallic Lasioglossum but differ in thoracic structure and facial features.

More Details

Taxonomic note

Lasioglossum is the largest of bees with over 1,700 , making species-level identification challenging without specialized expertise.

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Sources and further reading