Species account

Engkøllesværmer (Zygaena trifolii)    Esper (1783)
   Køllesværmere (Zygaenidae)    FSBU    25391
Five-spot Burnet (gb)   Käringstandbastardsvärmare (se)  
Subspecies
trifolii
barcelonensis
Reiss (1922).
caerulescens
Oberthur (1910).
decreta
Verity (1925).
duponcheliana
Oberthur (1910).
espunnica
Reiss (1936).
hibera
Verity (1925).
lusitaniaemixta
Verity (1930).
olbiana
Oberthur (1910).
palustrella
Verity (1925).
palustris
Oberthur (1896)
pusilla
Oberthur (1910).
subsyracusia
Verity (1925).
syracusia
Zeller (1847) - the Channel Islands and the coastal regions of north-western France from Loire-Atlantique to Côtes-d’Armor and Ille-et-Vilaine.
Measurements:
WS:28-33mm
Generations:
1
Flight period:
JFMAMJJASOND 
SE
Identification:
Very similar to Narrow-bordered Five-spot Burnet, showing 5 red spots on the forewing. But it has shorter and more rounded wings than that, and the middle spots often melt together and the larger of the two being more rectangular.

Similar species:
Life stages:
Distribution:
Habitat:
Moist nutrition-rich meadows where host plant is present.
Behavior:
Status:
Apparently declining in Denmark, but to what degree is difficult to say because of the difficulties separating it from Narrow-bordered Five-spot Burnet.
Host plants:
Sump-Kællingetand (Lotus pedunculatus) [Marsh Bird's-foot Trefoil ~ Cuernecillo Grande ~ Stor Käringtand]
Feeding plants:
Blåhat (Knautia arvensis) [Field Scabious ~ Escabiosa ~ Åkervädd]
Sump-Kællingetand (Lotus pedunculatus) [Marsh Bird's-foot Trefoil ~ Cuernecillo Grande ~ Stor Käringtand]
Comment: