[505] HETEROPTERA 143 



Lygus (Orthops) scutellatus Uhler. 



Lygits (Orthops) scutellatus UHLER, Bull. U. S. Geol. Surv., n, p. 420, 1877. 

 DISTANT, Biol. Centr. Amer., Hem.-Heter., p. 274, 1884. 



Two specimens, females, from Fox Point (July). Described from 

 Colorado; found throughout the United States and Canada; also a 

 variety in Mexico. 

 Lygus pratensis Linn. 



Lygus pratensis LINNE, Syst. Nat. Ed., x, 59, 448, 1758. FALLEN, Mon. 

 Cim., p. 83, 1867. Uhler' s List, p. 18, 1886. 



Two specimens, male and female, from Saldovia and Kukak Bay 

 (July). The latter belongs to the variety L. campestris Fallen. A 

 most variable insect, found in all Europe, Siberia, United States, and 

 Canada. 

 Poecilocytus unifasciatus Fabricius. 



Pcedlocytus unifasciatits FABRICIUS, Ent. Syst., iv, 158, 178, 1794. UHLER, 

 List of the Hemiptera of Colorado, p. 38, 1895. 



Three specimens, two females and one male, from Kukak Bay 

 (July i), Kadiak (July 20). Inhabits all Europe, Siberia, and boreal 

 America. 



Family LYGJEIDJE. 



Nysius gronlandicus Zetterstedt. 



Nysius gronlandicits ZETTERSTEDT, Ins. Lapp., pp. 262, 263, 1840. STAL, 

 Enum., iv, p. 121, 1874. 



Eight specimens, four females and four males, from Saldovia 

 (July 21 ). This species is described from Greenland and has also 

 been found at Ungava Bay, Hudson Bay Territory, by L. M. Turner 

 (National Museum collection). 

 Scolopostethus thomsoni Renter. 



Scolopostethus thomsoni REUTER, Ann. Soc. Ent. France (5), iv, p. 562, 

 1874. HORVATH, Rev. d'Entom., xii, p. 240, 1893. 



A single specimen, male, from Sitka (June 16). It is a European 

 species and the only one recorded as occurring also in boreal America. 

 I have seen specimens from California (Argus Mountains), and from 

 Colorado (National Museum collection). The genus is well repre- 

 sented also on this Continent : there have been found two other Amer- 

 ican species, S. diffidens Horv. and S. atlanticus Horv., and some 

 not yet described. 



Family ARADID^. 

 Aradus sp. ? 



One specimen, a male, from Saldovia (July 21). There seems to 

 be no record of any Aradus found before in Alaska. The specimen 



