Dioxys

Dioxys
	Dioxys aurifusca
Systematics
Order :	Hymenoptera (Hymenoptera)
Superfamily :	Apoidea
without rank:	Bees (Apiformes)
Family :	Megachilidae
Subfamily :	Megachilinae
Genre :	Dioxys
Scientific name
	Dioxys
	Lepeletier & Serville , 1825

Dioxys is a genus in the Megachilidae family. They are cuckoo bees , which means that they are brut parasitic in species of the genera Megachile and Osmia . Dioxys bees are found in North Africa and Europe to Central Asia, but they are absent in China and Japan. They are also found in western North America. There are about 10 Palaearctic and 5 Nearctic species. Only one species occurs in Central Europe.

features

The types of Dioxys are approx. 6 to 12 mm long and resemble cone bees ( Coelioxys ) in their appearance . In some species, the scutellum has two teeth (hence the German name). The end of the abdomen is mostly blunt and flattened. The females do not have a collection device.

behavior

Little is known about the behavior of two-tooth bees. They fly on flowers (to suckle nectar) in May to August near rock walls and rubble heaps where their hosts nest. The hosts are solitary bees of the genera Megachile and Hoplitis , in America also the genus Osmia .

Systematics

The genus Dioxys belongs to the tribe Dioxyini within the subfamily Megachilinae . This tribe contains eight genera, including Aglaoapis (3 species), Dioxys (15 species) and Paradioxys (2 species).

Native species

Only one species occurs in German-speaking countries.

Red two- toothed bee , Dioxys cincta (in the Swiss and Austrian Alps)

Another species, the dark two- toothed bee ( Aglaoapis tridentata = syn . Dioxys tridentata ) belongs to the genus Aglaoapis.

Another species is the Pannonian two- toothed bee ( Paradioxys pannonica = syn. Dioxys pannonica ), very rare in Eastern Austria.

Individual evidence

^ ^A ^b ^c Charles D. Michener : The Bees of the World . 2nd Edition. The Johns Hopkins University Press, Baltimore, Md. 2007, ISBN 978-0-8018-8573-0 , pp. 538-542 .
↑ ^a ^b ^c E. Scheuchl, W. Willner: Pocket dictionary of wild bees in Central Europe . Quelle & Meyer, 2016, ISBN 978-3-494-01653-5 , pp. 31 .
^ P. Westrich: The wild bees of Germany . E. Ulmer Verlag, Stuttgart 2018, ISBN 978-3-8186-0123-2 , pp. 188, 625 .
↑ Solitary bee species: two-tooth bees (Dioxys). Retrieved June 20, 2019 .
↑ Profile: Dioxys cincta. Retrieved June 21, 2019 .
↑ H. Zettl, AW Ebmer, H. Wiesbauer: To the knowledge of the wild bees (Hymenoptera: Apidae) in Vienna, Lower Austria and Burgenland (Austria) - 3 . In: Contribution to entomofaunistics . tape 7 , 2006, p. 49-62 .

[Micherner-1] A ^b ^c Charles D. Michener : The Bees of the World . 2nd Edition. The Johns Hopkins University Press, Baltimore, Md. 2007, ISBN 978-0-8018-8573-0 , pp. 538-542 .

[Taschenlexikon-2] E. Scheuchl, W. Willner: Pocket dictionary of wild bees in Central Europe . Quelle & Meyer, 2016, ISBN 978-3-494-01653-5 , pp. 31 .

[3] P. Westrich: The wild bees of Germany . E. Ulmer Verlag, Stuttgart 2018, ISBN 978-3-8186-0123-2 , pp. 188, 625 .

[4] Solitary bee species: two-tooth bees (Dioxys). Retrieved June 20, 2019 .

[5] Profile: Dioxys cincta. Retrieved June 21, 2019 .

[6] H. Zettl, AW Ebmer, H. Wiesbauer: To the knowledge of the wild bees (Hymenoptera: Apidae) in Vienna, Lower Austria and Burgenland (Austria) - 3 . In: Contribution to entomofaunistics . tape 7 , 2006, p. 49-62 .