PROCEEDINQS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. II, pp. 503-506. December 20, 1900. 



PAPERS FROM THE HARRIMAN ALASKA 

 EXPEDITION. 



XIII. 



ENTOMOLOGICAL RESULTS (7): 



HETEROPTERA. 



By O. Heidemann. 



The collection of Hemiptera-Heteroptera of the Harriman 

 Alaska Expedition, made by Prof. T. Kincaid, although small, 

 contains ten species of the family Capsidse, two of Lygeeidae, 

 one each of Aradidae and Nabidas, one of Gerridae, and three 

 of Corisidae. These species are all well known except one of 

 the family Aradidae. It is interesting to note the wide geo- 

 graphical distribution of some of the European and East Siberian 

 Hemiptera, namely, from Siberia over Bering Island to Alaska 

 and into the American Continent. 



Family CAPSIDiE. 



Megalocraea (Trigonotylus) ruficornis Fallen. 



Megalocrcea {Trigonotyhcs) ruficornis Fallen, Hem. Suec, i, i33,,no. 8, 

 1829. — Uhler, Hayden, Mont. Surv., p. 409, 1872. — Reuter, Rev. 

 Caps., p. 23, 1875. 



Seven specimens, five males and two females, from Cook Inlet, 

 Saldovia (July 21). Inhabits all Europe, East Siberia, United States, 

 and Canada. 



Miris sp. } 



A number of immature forms from Cook Inlet, but as no adult is 

 among them the species can not be ascertained. 



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