Warning: array_search() [function.array-search]: Wrong datatype for second argument in /var/www/domains/butterfly.ontarioinsects.org/docs/ontbutterflyatlas/ChartFC.php on line 379
All species
Time of Year Analysis
< Previous      < Main (fix this)>      Next>
< Pr. in region      Nxt. in region>
  Ontario Butterfly Atlas Online
  (Toronto Entomologists' Association)

Summary Data
Earliest_Latest__ # Obs. Only 10% on or before...Median (50% earlier and 50% later)Only 10% on or after...
SquareJan 1Nov 24    10,760May 28July 10Aug 30
CountyAug 20Aug 23        12Aug 20Aug 23Aug 23
ZoneAug 20Aug 23        12Aug 20Aug 23Aug 23
Forest RegionNANA         0NA 0NA
All OntarioJan 1Dec 26   381,068May 24July 9 0
Note: the square is ; the county is (); and the zone is 0. Forest regions are defined by Rowe (1972 -- pdf). .

Map of Forest Region