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Ornithologists who are interested in the study of ENTOMOLOGY 
are cordially invited to attend an 
EXTRAORDINARY MEETING 
of the 
Division NOORD-HOLLAND & UTRECHT of the 
NETHERLANDS ENTOMOLOGICAL SOCIETY, 
to be held on 
Monday 2 June, 8.p.m. 
in Hotel ’’POLEN” (entrance from Rokin). 
Of the butterfly Chrysophanus dispar Hew., extinct in England, 
and lately rediscovered in the Netherlands, series will be 
demonstrated from the old British localities and from the new ones 
in the Netherlands. 
