# file16.txt # # Reference: # # John Hartigan, # Clustering Algorithms, # Wiley, 1975. # ISBN 0-471-35645-X # LC: QA278.H36 # Dewey: 519.5'3 # # "Name" is the name of the butterfly. # # "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", # "Oct", "Nov", and "Dec" are the months. # # "O" is the ova, "L" the larva, "P" the pupa, "I" the imago. None, # one, or several of these may appear in a single month. # "Times of Appearance of British Butterflies, Hartigan page 150" 13 columns 27 rows "Name" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" "Adonis Blue" L L L L PI LI P PI LI L L L "Bath White" P P P P LI L P PI LP P P P "Black Hairstreak" O O O O L LPI I O O O O O "Black-veined White" L L L L LP PI LI L L L L L "Brinstone" I I I I LI LI PI PI I I I I "Brown Argus" L L L L L P PI I L L L L "Brown Hairstreak" O O O O L LP PI I I O O O "Camberwell Beauty" I I I I I L LP I I I I I "Chalk Hill Blue" L L L L LPI LP PI I L L L L "Chequered Skipper" L L L P P I O O L L L L "Clouded Yellow" - - - - I LI LP I LI LPI I - "Comina" I I I I LI LP PI LI PI I I I "Common Blue" L L L LP I IL LI I I L L L "Dark Green Fritillary" L L L L L LP PI LI L L L L "Dingy Skipper" L L L LP I LI LP I L L L L "Duke of Burgundy Fritillary" P P P P PI IOL L L LP P P P "Essex Skipper" O O O OL L P I I O O O O "Gatekeeper" L L L L L LP I I L L L L "Glanville Fritillary" L L L LP LPI LPI L L L L L L "Grayling" L L L L L LPI PI LI LI L L L "Green Hairstreak" P P P P PI LI LP P P P P P "Green-veined White" P P P PI LI LPI LPI LPI LP P P P "Grizzled Skipper" L L L LP I LI LP I L L L L "Heath Fritillary" L L L L L LPI LI L L L L L "High Brown Fritillary" L L L L L LP PI LI L L L L "Holly Blue" P P P PI I LP PI LI LPI LP P P "Large Blue" L L L L L LI I L L L L L