Hymenoptera of North Carolina
Scientific Name:
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View PDFAndrenidae Members: 3 NC Records

Andrena arabis Robertson, 1897 - No Common Name

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Family: Andrenidae Subfamily: AndreninaeChecklist Number: 32.00                                                                                  
Comments: This species is one of 470 members of this genus that occur in North American north of Mexico (Discover Life, accessed 2019-12-10), 97 of which have been recorded in North Carolina.
Field Guide Descriptions: Online Photographs: BugGuide, Discover Life, GBIF
Distribution in North Carolina
County Map: Clicking on a county returns the records for the species in that county.
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

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Flight Comments:
Habitats and Life History
Habitats: In North Carolina, Arabis species are associated with outrcops of mafic rock and are restricted to the Mountains. Cardamine species, on the other hand, have extensive populations in the bottomlands along brownwater streams and their adjoining slopes. Based on the other spring ephemerals that have been recorded as pollen sources, rich bottomlands are likely to be the primary habitat used by this species. Some use of more open habitats -- including rock outcrops -- is also possible.
Larval Host Plants: Considered a specialist pollinator on Arabis and Cardamine species, two members of the Brassicaceae (Fowler and Droege, accessed 2019-12-14). Several other spring ephemerals are listed as pollen sources by Discover Life (accessed 2021-12-08). These include Erythronium, Hepatica, Claytonia, and Trillium.
Observation Methods:
Status in North Carolina
Natural Heritage Program Status: [W3]
Natural Heritage Program Ranks: GNR SH
State Protection:
Comments: Listed as uncommon by Fowler and Droege (accessed 2014-12-14). Most records for this species east of the Appalachians are from New England, with records from North Carolina located the furthest south.