73.037 BF2283 – Dark Dagger – Noctuidae – Acronicta tridens
Dark Dagger – Noctuidae – Acronictinae – Acronicta tridens
STATUS – Resident and widely distributed at a low density in lowland areas of Derbyshire. This species and Acronicta psi (Grey Dagger), are so similar that field ID cannot reliably be used. The only sure way is by appearance of the caterpillars, otherwise lethal dissection practices are required. If cannot perform a Gen. Det, then best to record as Grey/Dark Dagger agg.
ID POINTERS – A grey to pale-grey moth, with long branched black basal streaks and black dagger like marks near trailing corner. Forewing can sometimes be tinged brownish or pink. See Grey Dagger
FLIGHT PERIOD – Mid May – July
IMAGES – Melbourne – Tony Davison© – Dark/Grey Dagger
