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Genus Xeralictus

Unknown Bee in Mentzelia involucrata (part I) - Xeralictus timberlakei - female Unknown Bee in Mentzelia involucrata - Xeralictus timberlakei - female Bee from the Colorado Desert - Xeralictus biscuspidariae BrownAbdomenBee - Xeralictus - female BrownAbdomenBee - Xeralictus - female Unknown4 - Xeralictus - female Unknown4 - Xeralictus - female Xeralictus maybe - Xeralictus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Halictidae (Sweat Bees)
Subfamily Rophitinae
Genus Xeralictus
Explanation of Names
Author of genus: Cockerell, 1927
Named for its xeric habitat and placement in family Halictidae
Numbers
2 spp., both in our area(1)
Size
Larger than other sympatric Rhophitinae
Identification
Three submarginal cells as in Conanthalictus, which are smaller bees. The mid tibial spur of the female has several coarse teeth.
Color pattern resembles that of sympatric Hesperapis (Xeralictoides) but these have only two submarginal cells.
Range
sw. US (map)(1)
Food
Females of both species collect pollen from flowers in the genus Mentzelia (Loasaceae). Species recorded include: Mentzelia involucrata, M. hirsutissimus, M. tricuspis, and M. tridentata. (2)
Remarks
Males are fooled into visiting "mimic" flowers which offer no nectar rewards...see here.
Print References
Snelling, R. R. and G. I. Stage. (1995). Systematics and biology of the bee genus Xeralictus (Hymenoptera: Halictidae, Rophitinae). Contributions in Science, Natural History Museum of Los Angeles County 451: 1-17. (Full Text)
Internet References
Female image and male image of a X. bicuspidariae from York University
UC Riverside web page describes how males X. biscuspidariae are fooled into visiting mimic flowers with no reward.
Works Cited
1.Ascher J.S., Pickering J. (2017) Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila)
2.Systematics and biology of the bee genus Xeralictus (Hymenoptera: Halictidae, Rophitinae)
R. R. Snelling and G. I. Stage. 1995. Contributions in Science, Natural History Museum of Los Angeles County, No. 451, pp 1-17.