Eumerus strigatus

Eumerus strigatus (Fallén, 1817)

Biology & ecology:

The larva tunnels in the bulbs of daffodils Narcissus sp. and rhizomes of Iris, as well as a range of other cultivated and wild species, usually when there is some damage and rot is present. Adults are frequent flower visitors and can be found attending the flowers of Wild Carrot Daucus carota usually. They can also be found flying low among vegetation or resting on dead stems and bare soil. Although there are records from gardens, this species is more frequent in wetland habitats; they were, for example, much more abundant than E. funeralis in material from water traps in the East Anglian fens.

Distribution:

Records extend north to the Moray Firth but the majority of records occur south of a line between the Ribble and the Tees. It is very noticeable that this species is most abundant in eastern England.

Status & conservation:

There has been a substantial decline in occurrence over the past 35 years. The peak in frequency of occurrence in the late 1980s reflects the work of the East Anglian Fens Invertebrate Survey. More recently, declining willingness amongst recorders to tackle challenging taxa may have exaggerated the effect.

Recorded from 336 hectads since 1990.