Xeralictus

Cockerell, 1927

Xeralictus sweat bees

Species Guides

2

Xeralictus is a of small sweat bees in the Halictidae, Rophitinae. The genus contains at least three described , including X. bicuspidariae, X. biscuspidariae, and X. timberlakei. These bees are associated with desert environments in southwestern North America and exhibit specialized pollination relationships involving floral mimicry systems.

Pronunciation

How to pronounce Xeralictus: /zɛrəˈlɪktəs/

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Habitat

Arid and semi-arid desert environments of southwestern North America. have been documented in association with creosote bush scrub and desert wash .

Distribution

Southwestern North America, primarily in Arizona and adjacent regions. Xeralictus bicuspidariae occurs east of the Colorado River; another congeneric occurs west of the Colorado River.

Behavior

Males patrol flowers in search of mates. In Xeralictus bicuspidariae, males attempt to mate with females while the females are positioned -down in flowers collecting pollen, leaving only the exposed. This has been exploited by the mimic plant Mohavea confertiflora, whose flowers bear a dark central marking resembling a female Xeralictus abdomen, thereby deceiving males into entering the flower and effecting pollination without reward.

Ecological Role

of desert plants. Documented visitors to Mentzelia involucrata (Loasaceae). Unwitting participants in a deceptive pollination mutualism involving floral mimicry by Mohavea confertiflora.

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