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• The Skipper Butterflies (Hesperiidae) of Trinidad. Part 4: Pyrginae (Second Section)

  Matthew J.W. Cock

  1986-12-31

• The Skipper Butterflies (Hesperiidae) of Trinidad Part 3 Pyrginae (First Section)

  Matthew J.W. Cock

  1984-12-31

• The Skipper Butterflies (Hesperiidae) of Trinidad Part 10, Pyrginae Completed, Genera Groups F and G

  Matthew J.W. Cock

  2000-12-31

• The Skipper Butterflies (Hesperiidae) of Trinidad Part 5: Pyrginae, Genera Group C Concluded

  Matthew J.W. Cock

  1988-12-31

• The Skipper Butterflies (Hesperiidae) of Trinidad Part 9, Genera Group E Concluded (Third Section) With a Description of a New Species of Clito

  Matthew J.W. Cock

  1998-03-31

• The Skipper Butterflies (Hesperiidae) of Trinidad Part 6: Pyrginae, Genera Group D

  Matthew J.W. Cock, S. Alston-Smith

  1990-06-30

• The Skipper Butterflies (Hesperiidae) of Trinidad Part 7, Genera Group E (First Section)

  Matthew J.W. Cock

  1991-07-31