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Description of two new cases of gynandromorphism in Paratrigona Schwarz and Augochlora Smith (Hymenoptera: Apidae and Halictidae)
(Magnolia Press, 2014-12)
Two new records of gynandromorphism in bees are described and illustrated for Paratrigona glabella and Augochlora amphitrite. The specimens show a mixture of male and female features, complete in Augochlora and on head and ...
100 Ma sweat bee nests: Early and rapid codiversification of crown bees and flowering plants
(Public Library of Science, 2020-01)
100 Ma sweat bee nests reported herein are the oldest evidence of crown bees. A new phylogeny for short-tongued bees, calibrated with these nests dated with 40Ar/39Ar, attests for the first time for a late Albian rapid ...
Second species of Augochlorodes (Hymenoptera: Halictidae: Augochlorini) with known males and first record for the genus in Argentina
(Magnolia Press, 2014-03)
The bee genus Augochlorodes Moure, up to now only known from Brazil, is recorded for the first time for Argentina. Augochlorodes politus Gonçalves & Melo was found in the south of the province of Buenos Aires, mideastern ...
The first gynandromorph of the Neotropical bee Megalopta amoena (Spinola, 1853) (Halictidae) with notes on its circadian rhythm
(Pensoft Publishers, 2020-04-27)
Gynandromorphy is an anomaly that results in an organism phenotypically expressing both male and female characteristics. Here we describe the first gynandromorph of the bee species Megalopta amoena (Spinola, 1853) (Halictidae, ...
Antennal sensilla analyses as useful tools in the revision of the sweat-bee subgenus Corynura (Callistochlora) Michener (Hymenoptera: Halictidae)
(Elsevier Gmbh, 2016-05)
Although many studies have analyzed the physiology of the antennal sensilla, only a few have used them for systematics. If the abundance and distribution of the different types of sensilla are constant within species, these ...
Dominant-subordinate social interactions and subordinate behavioral responses in the primitively eusocial sweat bee Augochlora phoemonoe (Hymenoptera: Halictidae)
(Springer, 2018-12)
Social interactions are studied in colonies of eusocial Augochlora phoemonoe, reared in artificial nests in the laboratory. Three kinds of behavioral interactions are distinguished between foundresses and daughter bees: ...
Phylogeny of the Corynura group, an endemic southern South American clade sister to all other Augochlorini bees (Hymenoptera: Halictidae), and a revision of Corynura
(Senckenberg Gesellschaft für Naturforschung, 2017-12-11)
Corynura Spinola, Callistochlora Michener and Halictillus Moure are the only taxa of Augochlorini endemic to southern South America. They are phylogenetically close, comprising a clade sister to all other augochlorines, ...