Genus: Austrothurgus Gonzalez and Engel, 2013
Common name: none
Austrothurgus are robust, black bees that range in body length from 10–15 mm (Gonzalez et al. 2013). The head, thorax, and abdomen are generally black, and they have white to brown apical bands of setae on the terga. T6 of females is covered with reddish-brown setae (Gonzalez et al. 2013).
Austrothurgus contains 3 species worldwide (Gonzalez et al. 2013); none are known to occur in the U.S or Canada.
(modified from Gonzalez et al. 2013)
- Abdomen with hair bands complete (Fig 3).
- First flagellomere 1.5 times longer than broad and nearly twice as broad as the second flagellomere (Fig 5).
- Hind tibia sculpturing coarsely tuberculate.
- Female arolia absent.
- Female facial prominence mostly involving the base of the clypeus (Fig 4).
- Male arolia present on all tarsi (Fig 6).
- Male with distinct carina on inner surface of metabasitarsus (Fig 6).
May be confused with
Austrothurgus looks like Lithurgus and Lithurgopsis, however, they can be distinguished from one another by the characteristics listed above (Gonzalez et al. 2013).
There are no known invasives.
Floral associations are unknown.
Nesting behavior is unknown.
Austrothurgus is endemic to Australia (Gonzalez et al. 2013).
Austrothurgus cognatus female face, photo: C. Ritner
Austrothurgus cognatus female lateral habitus, photo: C. Ritner
Austrothurgus cognatus female abdomen, photo: T. Brady
Austrothurgus cognatus female with facial prominence, photo: C. Ritner
Austrothurgus cognatus male antenna, photo: C. Ritner
Austrothurgus cognatus male hind basitarsis, photo: C. Ritner