A paper by van Nieukerken et al (2018) shows that Antispila treitschkiella feeds on Cornelian Cherry (Cornus mas) and has two generations a year. It has only recently been found in the UK in London (2016).
The Dogwood (Cornus sanguinea) feeding species formerly named Antispila treitschkiella is now named Antispila petryi. All our former Norfolk Antispila treitschkiella records have now been reassigned to that species.
Forewing costal spot usually trapezoid to almost square. Best distinguished by male genitalia, larva and hostplant.
Leaf-mine: June to July, August until early November. Short gallery leading to blotch, larva cutting an oval case.
References: van Nieukerken, Lees, Doorenweerd, Koster, Bryner, Schreurs, Martijn, Timmermans, Sattler (2018), Two European Cornus L. feeding leafmining moths, Antispila petryi Martini, 1899, sp. rev. and A. treitschkiella (Fischer von Röslerstamm, 1843) (Lepidoptera, Heliozelidae): an unjustified synonymy and overlooked range expansion, Nota Lepi. 41(1) 2018: 39–8
Determination by Genitalia Examination (gen. det.) Required
Mine: Either the leaf or a good photograph required