|Scientific Name:||Nomada argentata Herrich-Schäffer, 1839|
|Red List Category & Criteria:||Near Threatened ver 3.1|
|Reviewer(s):||Roberts, S., Nieto, A. & Scott, J.A.|
Global and European regional assessment: Near Threatened (NT)
The species is listed as Near Threatened because its area of occupancy (AOO) is 388 km2, and there is a continuing decline of the quality of the grasslands where the species occurs due to agricultural intensification. The species is considered threatened in many countries as well as extinct in others. The habitat of this species needs to be protected and conserved.
|Range Description:||Nomada argentata is endemic to Europe, it is distributed in many countries of central and eastern Europe. The extent of occurrence (EOO) is 3,331,122 km2 and the area of occupancy (AOO) is 388 km2.|
Native:Austria; Belgium; Bulgaria; Croatia; Czech Republic; Denmark; Finland; Germany; Hungary; Ireland; Italy (Italy (mainland)); Poland; Romania; Slovakia; Slovenia; Sweden; Switzerland; United Kingdom (Great Britain)
Regionally extinct:Netherlands; Norway
|Range Map:||Click here to open the map viewer and explore range.|
This species is very rare and populations have always been small, and there are not many recent records. In all the countries where it occurs, the species has declined or is extinct.
|Current Population Trend:||Decreasing|
|Habitat and Ecology:|
This species inhabits grasslands (both wet and dry), which seem to be in decline. Nomada argentata is a brood parasite and its host is Andrena marginata. Possibly Andrena pellucens is also a host (Standfuss and Standfuss 2010). Its primary host bee, A. marginata, is a specialist foraging on flowers of Scabiosa columbaria and Succisa pratensis, and is itself, widely red-listed across Europe.
The species is univoltine (it has one generation per year) and flies in July and August.
|Use and Trade:||This species is not traded or exploited commercially.|
|Major Threat(s):||Changes in agricultural practice (particularly through intensification in the use of grassland) have reduced the area of suitable habitat and floral resource availability for the host (Andrena marginata).|
This species is included in the National Red Lists or Red Data Books of the following eight European countries: Czech Republic (Endangered; Farkac et al. 2005); Germany (Endangered; Westrich et al. 2011); Ireland (Critically Endangered; Fitzpatrick et al. 2006); Netherlands (Regionally Extinct; Peeters and Reemer 2003); Norway (Regionally Extinct; Kålås et al. 2010); Slovenia (Endangered; Anonymous 2002); Sweden (Critically Endangered; Gärdenfors 2010); Switzerland (Endangered; Amiet 1994).
The species is present in protected areas.
There is conservation needed for the specific kind of grasslands (wet grasslands supporting host forage plant Succisa pratensis, and dry grasslands supporting both Succisa pratensis and Scabiosa columbaria), where the species occurs as well as monitoring of the population of this species.
|Citation:||Smit, J. 2013. Nomada argentata. The IUCN Red List of Threatened Species 2013: e.T19199076A21431323.Downloaded on 22 May 2018.|
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