4.055 BF81  -  Nepticulidae -  Nepticulinae - Stigmella hemargyrella - Beech Dot Adult Micro:  CAT 4 - Gen. Det. Required - Gen-Det-Reqd       Leaf-miner:  CAT L - The leaf or a Photo required - reared and possibly dissected       PDF Icon - click for Verification Guidelines
Black - Uncertain/Unknown - Insufficient Data        purple - Leaf Miner
Taxonomy:   Micro  >>  Nepticulidae Other Name/s: Beech Pigmy ID Difficulty:  Red - difficult to identify - detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
ID pointers: The mine is a sinuous gallery, with coiled frass in the central part of the gallery. The mine has the egg displaced from the midrib (central main vein of the leaf), unlike Stigmella tityrella, which has the egg on the underside against the midrib. The mine in the photograph is shown on Fagus (Beech) – Adults of overall bronzy-brown in colour with a central silvery patch in the fascia.
Distribution:  (Last record: 17/09/2021 at Belper )  -  National Status – Fairly common – Derbyshire status unknown – lack of data – likely to be locally common in Beech woodland – only 1 set of leaf mine photographs.
Flight Period: April /  May /  July /  August /  -  two generations in April – May & July – August Mine Period: June /  August /  September /   - Leaf mine June and August – September  Photographed: Yes -  Photographed By: Dave Evans  © All Rights Reserved
Wingspan: 5-6mm
Food Plant: Beech
Last Recorded Date: 17/09/2021
Last Recorded By: Not Recorded
Last Recorded General Area: Belper
No First Date Information Recorded

IMAGES BELOW:  Dave Evans – September 17th 2021 – Wyver Lane, Belper.

 
 

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