73.037 BF2283  -  Noctuidae -  Acronictinae - Acronicta tridens - Dark Dagger Adult Macro:  CAT 4 - Dissection required - Dissection required       PDF Icon - click for Adult Macro Verification Guidelines

Green -  Rare / Uncommon / Scarce   
Taxonomy:   Macro  >>  Noctuidae ID Difficulty:  amber  - care required in the identification process, as confusion with similar species is likely - quality photographs required.
Confusion Species:  Grey Dagger
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
Distribution:  (Last record: 01/09/2024 at Belper )  -  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 record as Grey/Dark Dagger agg.
Flight Period: May /  June /  July /  -  Mid May – July Moth Activity: Nocturnal  Photographed: Yes -  Photographed By: Tony Davison  © All Rights Reserved
Wingspan: 35-45mm
Forewing: 17-20mm
Food Plant: Hawthorn (Crataegus) and blackthorn (Prunus spinosa).
Last Recorded Date: 01/09/2024
Last Recorded By: Dave Evans
Last Recorded General Area: Belper
No First Date Information Recorded

IMAGES BELOW:  Melbourne – Tony Davison © – Dark/Grey Dagger agg

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