Nomada affabilis

Cresson, 1878

nomad bee

Nomada affabilis is a of kleptoparasitic nomad bee in the Apidae, first described by Cresson in 1878. As a member of the Nomada, it exhibits the characteristic cuckoo bee lifestyle of laying in the nests of species rather than building its own nests or collecting pollen. The species is distributed across North America and comprises two recognized : Nomada affabilis affabilis and Nomada affabilis dallasensis. Like other nomad bees, females likely locate host nests using chemical cues and possess reduced scopal structures for pollen collection.

Nomada affabilis dallasensis by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Nomada affabilis: /noˈmaː.da afˈfa.bɪ.lɪs/

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Identification

Identification of Nomada affabilis requires examination of specific morphological features distinguishing it from other Nomada . Members of the Nomada typically exhibit -like coloration with reduced body hair compared to pollen-collecting bees. Accurate species-level identification generally necessitates microscopic examination of genitalic structures and other diagnostic characters. The two (N. a. affabilis and N. a. dallasensis) may show geographic and subtle morphological differentiation.

Images

Distribution

North America. The has been recorded with presence status in North America, with showing potentially distinct geographic ranges: Nomada affabilis affabilis (described from the original type locality) and Nomada affabilis dallasensis (described by Cockerell in 1911, suggesting association with the Dallas, Texas region).

Ecological Role

As a kleptoparasite (cuckoo bee), Nomada affabilis functions as a within . Females lay in bee nests, and emerging larvae consume the host's pollen provisions and typically kill the host egg or larva. This parasitic lifestyle reduces the reproductive success of host and may influence host nesting and .

Similar Taxa

Other Nomada speciesNumerous Nomada share similar kleptoparasitic , -like appearance, and North American distribution. Differentiation requires detailed morphological examination.
Epeolus speciesAnother of cuckoo bees in Apidae with similar parasitic lifestyle and reduced scopal hairs, though Epeolus typically parasitizes Colletes bees rather than Andrena .