Sphecodes heraclei

Robertson, 1897

Cyclops Blood Bee

Species Guides

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Sphecodes heraclei is a of cleptoparasitic sweat bee in the Halictidae, commonly known as the Cyclops Blood . Like other members of the Sphecodes, females lay their in the nests of other solitary bees, particularly sweat bees in the Halictinae. The larvae consume the 's food stores and parasitize the host larvae. The species is native to North America and Central America, with records from both regions.

Pronunciation

How to pronounce Sphecodes heraclei: //ˈsfɛk.oʊˌdiːz hɛˈræ.kliː.aɪ//

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

Identification

Members of the Sphecodes are often called "blood bees" due to their typically red or reddish coloration. They can be distinguished from their by their more slender, -like appearance and reduced hairiness compared to non-parasitic halictid bees. Females lack pollen-carrying structures (scopae) on their hind legs, an consistent with their cleptoparasitic lifestyle. Specific identification of S. heraclei requires examination of morphological details and is best confirmed by .

Habitat

Found in areas where sweat bees nest, including sunny banks, meadows, and open ground with suitable soil for burrowing. As a , its use is tied to the nesting of its host .

Distribution

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

Diet

feed on nectar from flowers. Larvae are fed by the food provisions (pollen and nectar) collected by bees in the nests they parasitize.

Host Associations

Life Cycle

Females search for open nest tunnels of bees, waiting for the host to leave before entering to deposit in chambers. Upon hatching, larvae consume the host's food stores and kill the host egg or larva. Development completes within the host's sealed , with emerging the following season.

Behavior

Females exhibit nest-searching , hovering low to ground near nesting . Some Sphecodes have been observed using force to enter occupied nests when necessary. Males may be seen patrolling nesting areas in search of females.

Ecological Role

Acts as a ( ) on solitary sweat bees, regulating . Contributes to dynamics as both of larvae and prey for other insects. function as flower visitors, though less effective than non-parasitic bees due to reduced hairiness.

Human Relevance

Like other native bees, contributes to biodiversity in green spaces that support mental well-being. No significant agricultural impact; not a managed . Presence indicates healthy, diverse with sufficient .

Similar Taxa

  • NomadaAlso cleptoparasitic bees with -like appearance, but in Apidae rather than Halictidae; often more yellow-and-black patterned versus reddish Sphecodes
  • TriepeolusCleptoparasitic bees in Apidae that resemble Sphecodes in and general appearance; distinguished by family-level characters and associations
  • Non-parasitic Halictidae such as Lasioglossum and Halictus have hairier bodies, possess scopae for pollen collection, and show active pollen-foraging versus nest-searching of Sphecodes

More Details

Subspecies

Two are recognized: Sphecodes heraclei heraclei and Sphecodes heraclei ignitus.

Conservation note

As a , persistence depends on maintaining healthy populations and undisturbed nesting . use and habitat fragmentation that harm host bees indirectly threaten Sphecodes .

Tags

Sources and further reading