Norfolk Verification Grade Criteria

Adult Moths:

1: Generally distinctive and unlikely to be confused with other species. Usually accepted if within documented range and usual occurrence period for Norfolk; otherwise one or more good quality photographs, or possibly a specimen, will be required.

2: Can be confused with other species. Good quality photograph(s) or possibly a specimen may be required if the recorder is not familiar with the species. If records have previously been submitted and accepted, category 1 criteria will apply.

3: A good quality photograph(s) showing all critical identification features will be required. A voucher specimen may also be required (seek advice before releasing the moth) Worn examples are likely to be unidentifiable unless a specimen is retained for microscopic examination.

4: Dissection required.

Leaf-miners:

A: Record accepted without the need to see the actual leaf or a good photo.

L: Either the leaf or a good photograph required if the recorder is not familiar with the species. If records have previously been submitted and accepted, category A criteria will apply.

R: Moth will need to be reared and, in some cases, possibly dissected.

Larval cases:

C1: Same as Adult Category 1.

C2: A good quality photo or specimen of the case and plant/pabulum is required if the recorder is not familiar with the species.

C3: A good quality photo or specimen of the case and plant/pabulum and the bred moth is required.

C4: As in C3 and the moth requires dissection.

Norfolk verification grades compiled and regularly reviewed by the Norfolk Moth Survey committee. Micro-moth grades based on National guidelines compiled by Dr John Langmaid, Stephen Palmer, Mark Parsons and Dr Mark Young - January 2016. *macro verification grades are provisional, pending review by the NMS in early 2019