Topic: Blastobasis lacticolella Rebel, "1840"
This is the authority date given on the NBN gateway NHMSYS0020676097 but it should be 1940 (Hans Rebel was born in 1861!)
Also I understand it is NOT a synonym (as stated on that gateway page) of Blastobasis decolorella (Wollaston, 1858) - Rebel's description of lacticolella mentions how it can be differentiated from decolorella. There is an image of Rebel's paper at lepiforum dot de slash lepiwiki.pl query Blastobasis_Lacticolella which also gives the full citation.