There are 25 species of Butterflyfishes in Hawaii, 123 throughout the world, of which five are endemic (two are only found at great depths).  The Hawaiians referred to most species as Lauhau or Kikakapu and did not eat them except during periods of famine.   The most common species is the endemic Milletseed Butterflyfish, at least around the older islands.  It occurs in large aggregations that feed upon a variety of tiny invertebrates, fish eggs and zooplankton.  It also spawns in large groups rather than forming a monogamous bond. 

Paired individuals remain together and maintain well-defined territories.  The size of the territory is determined by the amount of food needed and the amount of effort required to defend it.  Live corals are preyed upon by several species.

Some species are widespread while others are limited to one ocean or a portion of it, and some are restricted to a single island or group.  The Stripey is actually a close relative of the Chubs.

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