Melecta separata

Cresson, 1879

Species Guides

1

Melecta separata is a cleptoparasitic (cuckoo bee) in the Apidae, native to North America. The contains six recognized distributed across western and southwestern regions of the continent. Like other members of the Melecta, it is a nest of solitary bees, particularly species in the genus Anthophora. The subspecies M. separata callura has been specifically documented as a of Anthophora pacifica.

Pronunciation

How to pronounce Melecta separata: /mɛˈlɛkta sɛpəˈraːta/

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Identification

Melecta separata is a relatively large, robust with dense hair covering the body. As a cleptoparasitic , females lack pollen-collecting structures (scopae) on the hind legs. The Melecta can be distinguished from similar cuckoo bees by the combination of large size, dense , and specific wing venation patterns. identification requires examination of subtle differences in hair coloration and body proportions, best determined by examination.

Habitat

Associated with where nest, including areas with bare or sandy soils suitable for ground-nesting Anthophora species. Observed in montane and foothill environments in western North America, including trails and open areas with exposed soil.

Distribution

North America, with distributed across western and southwestern regions: M. s. alfredi, M. s. arizonica, M. s. callura, M. s. johnsoni, M. s. mojavensis, and the nominate M. s. separata. Specific subspecies ranges include California, Arizona, and adjacent states.

Host Associations

  • Anthophora pacifica - Documented for M. separata callura; female Melecta enters host burrow and lays , with larva consuming host's pollen and nectar provisions

Behavior

Females are that enter the burrows of bees to lay . The resulting larvae consume the food stores intended for the host's offspring. Males have been observed congregating in areas where females are active.

Ecological Role

As a , regulates of . Does not contribute directly to pollination due to lack of pollen-collecting .

Similar Taxa

  • Melecta pacificaSimilar size, appearance, and cleptoparasitic lifestyle; distinguished by subtle morphological differences and associations
  • Other Melecta species-level characters including dense hair and lack of scopae; identification requires examination of subtle structural features

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