NEPTICULIDAE : Nepticulinae : Nepticulini
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04.012 Stigmella aceris (Maple Dot)
ws: 3.7-4.7mm; bivoltine May-Jun, Aug; field maple (Acer campestris) (Ref: Wikipedia); at the time of publication of MBGBI1 (1983) there had only been 2 British records, both in Kent. It has now spread at least as far as Worcestershire and there are several Essex records.
ID: Forewing with a pale fascia and no additional pale spots; head black, collar pale; terminal cilia not contrastingly pale (though they are pale-tipped), fascia not metallic and of fairly even width across whole forewing > S.prunetorum/aceris. Males can be distinguished by the presence of androconial scales in S.prunetorum and their absence in S.aceris. Females require genital determination.
Female genitalia: anterior apophyses exceptionally broad in S.aceris
Genital drawings of this and other species can be found at Swedish Natural History Museum.
Female genitalia: anterior apophyses exceptionally broad in S.aceris
Genital drawings of this and other species can be found at Swedish Natural History Museum.
§1 Dagenham, Essex; 30/08/2024; female; fw 2.2mm (specimen obtained by Bill Crooks)
§2 ??? 2020
All images © Chris Lewis
§2 ??? 2020
All images © Chris Lewis
Page published 25/09/2013 (§1) | §2 added 13/02/2021 | original §1 removed due to uncertainty over ID and replaced