Page 81, line 8 from top, and throughout essay, for “DaphnidÆ” read “DaphniidÆ.”

Page 95, line 3 from bottom, for “Daphnoidea” read “Daphniacea.”

Page 166, line 7 from bottom (note), for “p. 438” read “p. 433.”

Page 245, line 17 from bottom (note), for “StÄll” read “Stoll.”

Page 263, after the word “insects” (bottom line of note), add, “but the whole marking is suggestive of distastefulness.”

Page 296, line 3 from bottom, for “StÄhelina—collector” read “StÄhelin—a collector.”

Page 305, line 5 from bottom (note), for “In 1869” read “In 1865.”

Page 434, bottom line of note, for “GeometrÆ” read “BombycidÆ.”

Page 494, line 2 from top, for “from which a larval form” read “from a larval form which.”

Page 542, line 12 from top, for “Dione Vanilla” read “Dione VanillÆ.”

Page 544, line 15 from bottom, for “Siderome” read “Siderone.”