The genus ''Systropha'' comprises several species of
Old World
The "Old World" () is a term for Afro-Eurasia coined by Europeans after 1493, when they became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia in the Eastern Hemisphere, previously ...
sweat bees, primarily specialist pollinators of plants in the genus ''
''. Males of the genus have unusual curled antennae, and females have pollen-carrying hairs covering almost the entire abdomen.
[ Michener, C.D. (2000). ''The Bees of the World''. Johns Hopkins University Press]
Distribution
''Systropha'' species occur from
Spain
Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
and
Morocco
Morocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa. It has coastlines on the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to Algeria–Morocc ...
east to
Tajikistan
Tajikistan, officially the Republic of Tajikistan, is a landlocked country in Central Asia. Dushanbe is the capital city, capital and most populous city. Tajikistan borders Afghanistan to the Afghanistan–Tajikistan border, south, Uzbekistan to ...
, and north as far as southern
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
. They occur in both eastern and western parts of
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
, south to
Namibia
Namibia, officially the Republic of Namibia, is a country on the west coast of Southern Africa. Its borders include the Atlantic Ocean to the west, Angola and Zambia to the north, Botswana to the east and South Africa to the south; in the no ...
. Asian species range as far south as
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...
and
Thailand
Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...
.
Life history
So far as is known, all species are
oligolectic
The term oligolecty is used in pollination ecology to refer to bees that exhibit a narrow, specialized preference for pollen sources, typically to a single family or genus of flowering plants. The preference may occasionally extend broadly to m ...
on flowers of ''
'', with unusual modifications of the
scopa
(; ) is an Italian card game, and one of the three major national card games in Italy, the others being and . It is also popular in Argentina and Brazil, brought in by Italian diaspora, Italian immigrants, mostly in the variation. is also p ...
, such that almost the entire abdomen (including the dorsal surface) is used for carrying pollen, rather than the legs, as in most bees.
Pollen is carried to nests in the ground, formed into pollen masses, on each of which a single egg is laid before the cell containing the pollen is sealed, and another cell is then constructed and provisioned.
Species
Species according to
Catalogue of Life
The Catalogue of Life (CoL) is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxono ...
:
References
External links
*
{{Taxonbar, from=Q1624851
Halictidae
Bee genera
Hymenoptera of Africa
Hymenoptera of Asia
Hymenoptera of Europe