The following paper on the Heteroptera of the Expedition, by O. 

 Heidemann, Division of Entomology, U. S. Department of Agricul- 

 ture, was originally published in the Proceedings of the Washington 

 Academy of Sciences, vol. n, pp. 503-506, Dec. 20, 1900. It is 

 here reprinted from the same electrotype plates, so that it may be 

 quoted exactly as if it were the original. The original pagination has 

 been preserved and transferred to the inner or hinge side of the page, 

 where it is enclosed in brackets, thus [504] ; while the consecutive 

 pagination of the present volume has been added in the usual place. 

 The present headpiece and title have been substituted for the running 

 heading of the Academy's Proceedings and the original title, which 

 was: Papers from the Harrinian Alaska Expedition, xui. Eti- 

 tomological Results (7) : Heteroptera. No other alterations have 

 been made. 



The author desires to record the following corrections : 

 Page 141 [503] : 



Tenth line from bottom, for ' Megalocraea ' read Megaloceraia. 



Ninth line from bottom, for ' Megalocraea (Trigonotylus) ' read Minis. 

 Page 142 [504] : 



Second line from top, for ' Leptopterna ferrugata ' read Minis ferrugatus ; 

 insert after ' Suec.,' /. 



Ninth line from top, for ' p. 1870, 1858,' read xix, p. 187, 1838, O . 



Twentieth line from bottom, for ' Capsus ater Linnd, Fauna Suec, p. 253, 

 1761,' substitute the following: Cimex ater Linnd, Syst. Nat., ed. se, p. 

 447, '758- 



Fifteenth line from bottom, for ' xix ' read xxi ; for ' 1876-79 ' read 1879. 



Fifth line from bottom, for ' Lygus ' read Cimex. 

 Page 143 [505] : 



Second line from top, for ' Lygus (Orthops) ' read Orthops. 



Eighth line from top, for ' Lygus ' read Cimex. 



Fifteenth line from top, for ' Paecilocytus ' read Lygceus. 



Editor. 



(140) 



