Mating System and Sleeping Behaviour of the Male and Female Centris (Paracentris) burgdorfi Friese (Apidae, Centridini)

Sleeping aggregation of an oil-collecting bee, Centris (Paracentris) xanthomelaena Moure & Castro (Hymenoptera: Apidae: Centridini)

“…Bee species, in general, have been reported forming clusters of individuals during the period of inactivity (Linsley, 1962;Alcook, 1998;Alves-dos-Santos et al, 2009), but in most cases these groups have been composed of males (Alves-dos-Santos et al, 2009;Wcislo, 2003;Mahlmann et al, 2014). Likewise, we observed herein, C. burgdorfi females were also recorded sleeping outside their nests, on flowers and fruits of Krameria tomentosa, and forming clusters of approximately 76 individuals, approximately (Sabino et al, 2017). In addition, both males and females of C. xanthomelaena shared the same dormitories, sometimes mixed ones.…”

“…on plant branches, cavities or flowers (Alves-dos-Santos et al, 2009;Starr & Vélez, 2009;Mahlmann et al, 2014;Sabino et al, 2017). On the other hand, females can sleep inside their nests, as a strategy to protect their offspring (Aguiar & Gaglianone, 2003;Martins et al, 2014), or atypically, outside them, as observed by Sabino et al (2017).…”

“…The choice of the dormitories by C. xanthomelaena has been mainly associated with the proximity among trees and nesting sites and not associated with the plants that females use to collect floral resources. However, other studies on the Centris dormitories have showed that some plants species, such as Caesalpinia (Starr & Vélez, 2009) and Krameria (Sabino et al, 2017) were used as dormitories, as well as to collect floral resources.…”

Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini)

“…Other Euglossa species build aerial nests made of plant resources, such as resin that anchors the steam or leaf of a plant (see video in Wcislo et al 2012). Such remarkable differences in nesting behavior within a genus may extend to other bee genera, such as Centris, who either nest in empty cavities or excavate nests underground (Vinson et al 2010, Sabino et al 2017.…”

Reproductive behavior of the oil-collecting bee Epicharis dejeanii (Apidae: Centridini)

“…This behavior also reinforces the hypothesis that the attractive odor of the virgin female ends at the beginning of mating. The behavior of many males forming a cluster on a virgin female has also been recorded in Centris burgdorfi Friese (Sabino et al 2017), Epicharis bicolor Smith (Rocha-Filho et al 2008), E . nigrita Friese (Martins et al 2019), as well as in other populations of E .…”