Morley’s Final Catalogue: Quite a common kind on cultivated roses; unnoticed in the west. Frequent in Ipswich (Pyett, Mly); Felixstow in July (Gbs); Aldeburgh (Ctw); Hacheston (Hkr); common in Monks Soham garden but never seen at light there, Fritton (Mly); Lowestoft (Bd); Gorleston (D).
Recent Status: Poorly recorded in Suffolk. Probably under-recorded.
Life Style: A single brooded species, usually appearing after the peak of N. trimaculana. Flying in late May to July. The larvae feed from spun shoots of Rosa species and will bore into the stem. They pupate away from the larval habitation.
Identification: Three similar frequent Notocelia. N. roborana, N. rosaecolana and N. trimaculana can be distinguished as follows. N. roborana is the largest and has a smaller dark basal patch, the pale area is less marked than in the other species and there are just four pairs of strong costal strigulae on the distal half. Sometimes weaker pairs may be evident closer to the base.. N. rosaecolana is a similar size to N. roborana, it has at least five pairs of weaker costal strigulae and additional pairs can usually also be seen closer to the wing base. N. trimaculana is the smaller species that usually emerges earlier than the others. It has only four pairs of strong costal strigulae on the distal half. A fifth is rarely visible. It is more marked in the pale area than N. roborella. The males of all three have costal folds to around one half. More Info
Recorded in 17 (29%) of 58 10k Squares. First Recorded in 1987. Last Recorded in 2020. Additional Stats